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Hillari L, Frank P, Cadar D. Systemic inflammation, lifestyle behaviours and dementia: A 10-year follow-up investigation. Brain Behav Immun Health 2024; 38:100776. [PMID: 38706574 PMCID: PMC11068506 DOI: 10.1016/j.bbih.2024.100776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 03/17/2024] [Accepted: 04/16/2024] [Indexed: 05/07/2024] Open
Abstract
Objectives Lifestyle behaviours have been linked to dementia incidence, but their cumulative impact on dementia and the underlying mechanisms remain poorly understood. This study investigated the association of co-occurring lifestyle behaviours with dementia incidence and the mediating role of systemic inflammation in this association. Methods The sample comprised 3131 participants (55.2% female) from the English Longitudinal Study of Ageing aged 52-92 years at baseline (2008/09). Self-reported baseline lifestyle behaviours (alcohol intake, fruit and vegetable consumption, smoking, physical activity, sleep duration, social engagement, and cognitive activity) were summed to derive an index of lifestyle behaviours, ranging from 0 to 7, with higher scores denoting a higher number of health-risk behaviours. Incident dementia cases (n = 130, 4.2%) were identified through doctor-diagnosed dementia, informant interviews, and health records between 2014/15 and 2018/19. Systemic inflammation was measured through fasting plasma concentrations of C-reactive protein in 2012/13. Results Binary logistic regression models indicated that the odds of subsequent dementia increased by 1.19 for each additional health-risk behaviour (95% confidence intervals: 1.04, 1.37, p = 0.014) after adjusting for age, sex, ethnicity, wealth, education, marital status, body mass index, coronary heart disease, hypertension, stroke, and depression. However, this association was not mediated by C-reactive protein. Conclusions Co-occurring health-risk behaviours were associated with higher dementia incidence up to 10 years later, underscoring the importance of modifying health-risk behaviours for the prevention of dementia. Systemic inflammation did not explain the association between behaviours and dementia.
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Affiliation(s)
- Leah Hillari
- Behavioural Science and Health, University College London, London, UK
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Philipp Frank
- Behavioural Science and Health, University College London, London, UK
- UCL Brain Sciences, University College London, London, UK
| | - Dorina Cadar
- Behavioural Science and Health, University College London, London, UK
- Centre for Dementia Studies, Brighton and Sussex Medical School, Brighton, UK
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de Lange DW, Soliman IW, Leaver S, Boumendil A, Haas LEM, Watson X, Boulanger C, Szczeklik W, Artigas A, Morandi A, Andersen F, Jung C, Moreno R, Walther S, Oeyen S, Schefold JC, Cecconi M, Marsh B, Joannidis M, Nalapko Y, Elhadi M, Fjølner J, Guidet B, Flaatten H. The association of premorbid conditions with 6-month mortality in acutely admitted ICU patients over 80 years. Ann Intensive Care 2024; 14:46. [PMID: 38555336 PMCID: PMC10981642 DOI: 10.1186/s13613-024-01246-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 01/08/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND Premorbid conditions influence the outcome of acutely ill adult patients aged 80 years and over who are admitted to the ICU. The aim of this study was to determine the influence of such premorbid conditions on 6 month survival. METHODS Prospective cohort study in 242 ICUs from 22 countries including patients 80 years or above, admitted over a 6 months period to an ICU between May 2018 and May 2019. Only emergency (acute) ICU admissions in adult patients ≥ 80 years of age were eligible. Patients who were admitted after planned/elective surgery were excluded. We measured the Clinical Frailty Scale (CFS), the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE), disability with the Katz activities of daily living (ADL) score, comorbidities and a Polypharmacy Score (CPS). RESULTS Overall, the VIP2 study included 3920 patients. During ICU stay 1191 patients died (30.9%), and another 436 patients (11.1%) died after ICU discharge but within the first 30 days of admission, and an additional 895 patients died hereafter but within the first 6 months after admission (22.8%). The 6 months mortality was 64%. The median CFS was 4 (IQR 3-6). Frailty (CFS ≥ 5) was present in 26.6%. Cognitive decline (IQCODE above 3.5) was found in 30.2%. The median IQCODE was 3.19. A Katz ADL of 4 or less was present in 27.7%. Patients who surviving > 6 months were slightly younger (median age survivors 84 with IQR 81-86) than patients dying within the first 6 months (median age 84, IQR 82-87, p = 0.013), were less frequently frail (CFS > 5 in 19% versus 34%, p < 0.01) and were less dependent based on their Katz activities of daily living measurement (median Katz score 6, IQR 5-6 versus 6 points, IQR 3-6, p < 0.01). CONCLUSIONS We found that Clinical Frailty Scale, age, and SOFA at admission were independent prognostic factors for 6 month mortality after ICU admission in patients age 80 and above. Adding other geriatric syndromes and scores did not improve the model. This information can be used in shared-decision making. CLINICALTRIALS gov: NCT03370692.
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Affiliation(s)
- Dylan W de Lange
- Department of Intensive Care Medicine, University Medical Center, University Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.
| | - Ivo W Soliman
- Department of Intensive Care Medicine, University Medical Center, University Utrecht, Utrecht, The Netherlands
| | - Susannah Leaver
- Department of critical care, St George's Hospital London, London, UK
| | - Ariane Boumendil
- AP-HP, Hôpital Saint-Antoine, service de reanimation, F75012, Paris, France
| | - Lenneke E M Haas
- Department of Intensive Care, Diakonessen Hospital, Utrecht, The Netherlands
| | - Ximena Watson
- Department of critical care, St George's Hospital London, London, UK
| | - Carol Boulanger
- Intensive Care Unit, Royal Devon & Exeter NHS Foundation Trust, Exeter, UK
| | - Wojciech Szczeklik
- Center for Intensive Care and Perioperative Medicine, Jagiellonian University Medical College, Kraków, Poland
| | - Antonio Artigas
- Department of Intensive Care Medecine, CIBER Enfermedades Respiratorias, Corporacion Sanitaria Universitaria Parc Tauli, Autonomous University of Barcelona, Sabadell, Spain
- Critical Care Department, Sagrado Corazon-General de Cataluña University Hospitals, Quiron Salud, Barcelona, Spain
| | - Alessandro Morandi
- Department of Rehabilitation Hospital Ancelle di Cremona, Cremona, Italy
- Geriatric Research Group, Brescia, Italy
| | - Finn Andersen
- Department of Anaesthesia and Intensive Care, Ålesund Hospital, Ålesund, Norway
- NTNU, Department of Circulation and Medical Imaging, Trondheim, Norway
| | - Christian Jung
- Division of Cardiology, Pulmonology and Vascular Medicine, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Rui Moreno
- Faculdade de Ciências Médicas de Lisboa (Nova Médical School), Hospital de São José, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
- Faculdada de Ciências de Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - Sten Walther
- Linkoping University Hospital, Linkoping, Sweden
| | - Sandra Oeyen
- Department of Intensive Care 1K12IC, Ghent University Hospital, Ghent, Belgium
| | - Joerg C Schefold
- Department of Intensive Care Medicine, Inselspital, Universitätsspital, University of Bern, Bern, Switzerland
| | - Maurizio Cecconi
- Department of Anesthesia and Intensive Care Medicine, Humanitas Clinical and Research Center - IRCCS, Via Alessandro Manzoni, 56, 20089, Rozzano, MI, Italy
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, MI, Italy
| | - Brian Marsh
- Mater Misericordiae University Hospital, Dublin, Ireland
| | - Michael Joannidis
- Division of Intensive Care and Emergency Medicine, Department of Internal Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Yuriy Nalapko
- European Wellness International, ICU, Luhansk, Ukraine
| | | | - Jesper Fjølner
- Department of Anaesthesia and Intensive Care, Viborg Regional Hospital, Viborg, Denmark
| | - Bertrand Guidet
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpital Saint-Antoine, service de reanimation, 75012, Paris, France
| | - Hans Flaatten
- Department of Clinical Medicine, Department of Anaesthesia and Intensive Care, University of Bergen, Haukeland University Hospital, Bergen, Norway
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Guidet B, Vallet H, Flaatten H, Joynt G, Bagshaw SM, Leaver SK, Beil M, Du B, Forte DN, Angus DC, Sviri S, de Lange D, Herridge MS, Jung C. The trajectory of very old critically ill patients. Intensive Care Med 2024; 50:181-194. [PMID: 38236292 DOI: 10.1007/s00134-023-07298-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/27/2023] [Indexed: 01/19/2024]
Abstract
The demographic shift, together with financial constraint, justify a re-evaluation of the trajectory of care of very old critically ill patients (VIP), defined as older than 80 years. We must avoid over- as well as under-utilisation of critical care interventions in this patient group and ensure the inclusion of health care professionals, the patient and their caregivers in the decision process. This new integrative approach mobilises expertise at each step of the process beginning prior to intensive care unit (ICU) admission and extending to long-term follow-up. In this review, several international experts have contributed to provide recommendations that can be universally applied. Our aim is to define a minimum core dataset of information to be shared and discussed prior to ICU admission and to facilitate the shared-decision-making process with the patient and their caregivers, throughout the patient journey. Documentation of uncertainty may contribute to a tailored level of care and ultimately to discussions around possible limitations of life sustaining treatments. The goal of ICU care is not only to avoid death, but more importantly to maintain an acceptable quality of life and functional autonomy after hospital discharge. Societal consideration is important to highlight, together with alternatives to ICU admission. We discuss challenges for the future and potential areas of research. In summary, this review provides a state-of-the-art current overview and aims to outline future directions to address the challenges in the treatment of VIP.
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Affiliation(s)
- Bertrand Guidet
- Medical ICU, Assistance Publique, Hôpitaux de Paris, Hôpital Saint-Antoine, Service de Réanimation Médicale, 75012, Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, 75013, Paris, France.
| | - Helene Vallet
- Department of Geriatrics, Sorbonne Université, Institut National de la Santé Et de la Recherche Médicale (INSERM), UMRS 1135, Centre d'immunologie et de Maladies Infectieuses (CIMI), Saint Antoine, Assistance Publique Hôpitaux de Paris (AP-HP), 75012, Paris, France
| | - Hans Flaatten
- Department of Clinical Medicine, Haukeland University Hospital, University of Bergen, Department of Research and Development, Haukeland University Hospital, Bergen, Norway
| | - Gavin Joynt
- Department of Anaesthesia and Intensive Care, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Sean M Bagshaw
- Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta and Alberta Health Services, Edmonton, Canada
| | | | - Michael Beil
- Department of Medical Intensive Care, Faculty of Medicine, Hebrew University and Hadassah University Medical Center, Jerusalem, Israel
| | - Bin Du
- Medical Intensive Care Unit, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Daniel N Forte
- Departament of Emergency Medicine, Faculdade de Medicina, Universidade de São Paulo, Hospital Sírio-Libanês, São Paulo, Brazil
| | - Derek C Angus
- Critical Care Medicine, UPMC and University of Pittsburgh, Pittsburgh, USA
| | - Sigal Sviri
- Department of Medical Intensive Care, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Dylan de Lange
- Department of Intensive Care Medicine, University Medical Center, University Utrecht, Utrecht, The Netherlands
| | - Margaret S Herridge
- Interdepartmental Division of Critical Care Medicine, Critical Care and Respiratory Medicine, University Health Network, Toronto General Research Institute, Institute of Medical Sciences, University of Toronto, Toronto, Canada
| | - Christian Jung
- Department of Cardiology, Pulmonology and Angiology, University Hospital, Düsseldorf, Germany
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Delhey LM, Shi X, Morgenstern LB, Brown DL, Smith MA, Case EC, Springer MV, Lisabeth LD. Association of Neighborhood Recreation Centers and Poststroke Outcomes in a Population-Based Cohort. Stroke 2023; 54:2583-2592. [PMID: 37706339 PMCID: PMC10530069 DOI: 10.1161/strokeaha.122.041852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 08/14/2023] [Indexed: 09/15/2023]
Abstract
BACKGROUND Higher neighborhood socioeconomic status has been favorably associated with stroke outcomes. This may be due to these areas having more beneficial resources such as recreational centers. We aimed to determine if neighborhood density of recreation centers is favorably associated with stroke outcomes. METHODS We conducted analyses of data from the Brain Attack Surveillance in Corpus Christi project, a cohort of stroke survivors ≥45 years of age residing in Nueces County, TX (2009-2020). We included non-Hispanic White and Mexican American incident stroke survivors, who were not institutionalized prestroke and completed baseline and follow-up assessments (N=1392). We calculated the density of fitness and recreational sports centers within their residential census tract during the year of their stroke. Outcomes included function (self-ratings on activities of daily living and instrumental activities of daily living), cognition (modified mini-mental state exam), depression (Patient Health Questionnaire-8), and quality of life (abbreviated Stroke-Specific Quality of Life Scale). We fit confounder-adjusted gamma-distributed mixed generalized linear models with a log link for each outcome and considered interaction with stroke severity. RESULTS On average, participants were 65 years old, 53% male, and 63% Mexican American. Median recreational centers were 1.60 per square mile (interquartile range, 0.41-3.06). Among moderate-severe stroke survivors, greater density of recreation centers (75th versus 25th percentile) was associated with more favorable function and possibly quality of life (activities of daily living/instrumental activities of daily living, 4.8% change [95% CI, -0.11% to -9.27%]; Stroke-Specific Quality of Life Scale, 3.7% change [95% CI, -0.7% to 8.2%]). Minimal nonsignificant differences were observed among the overall stroke population and those with mild stroke. CONCLUSIONS The availability of recreation centers may be beneficial for poststroke function and quality of life among those with moderate-severe stroke. If further research confirms recreation centers to be beneficial, this could inform rehabilitation following stroke.
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Affiliation(s)
- Leanna M Delhey
- Department of Epidemiology (L.M.D., L.B.M., M.A.S., E.C.C., L.D.L.), University of Michigan School of Public Health, Ann Arbor
| | - Xu Shi
- Department of Biostatistics (X.S.), University of Michigan School of Public Health, Ann Arbor
| | - Lewis B Morgenstern
- Department of Epidemiology (L.M.D., L.B.M., M.A.S., E.C.C., L.D.L.), University of Michigan School of Public Health, Ann Arbor
- Stroke Program, University of Michigan Medical School, Ann Arbor (L.B.M., D.L.B., M.V.S.)
| | - Devin L Brown
- Stroke Program, University of Michigan Medical School, Ann Arbor (L.B.M., D.L.B., M.V.S.)
| | - Melinda A Smith
- Department of Epidemiology (L.M.D., L.B.M., M.A.S., E.C.C., L.D.L.), University of Michigan School of Public Health, Ann Arbor
| | - Erin C Case
- Department of Epidemiology (L.M.D., L.B.M., M.A.S., E.C.C., L.D.L.), University of Michigan School of Public Health, Ann Arbor
| | - Mellanie V Springer
- Stroke Program, University of Michigan Medical School, Ann Arbor (L.B.M., D.L.B., M.V.S.)
| | - Lynda D Lisabeth
- Department of Epidemiology (L.M.D., L.B.M., M.A.S., E.C.C., L.D.L.), University of Michigan School of Public Health, Ann Arbor
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Hackett RA, Vo TT, Vansteelandt S, Davies-Kershaw H. The role of loneliness on hearing ability and dementia: A novel mediation approach. J Am Geriatr Soc 2023; 71:2834-2844. [PMID: 37224416 DOI: 10.1111/jgs.18396] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 03/07/2023] [Accepted: 03/25/2023] [Indexed: 05/26/2023]
Abstract
BACKGROUND To determine the potential mediating role of loneliness in the relationship between hearing ability and dementia. METHODS Design: Longitudinal observational study. SETTING English Longitudinal Study of Ageing (ELSA). PARTICIPANTS Individuals aged 50 and older (N = 4232). MEASUREMENTS Self-reported hearing ability and loneliness were assessed from Wave 2 (2004-2005) to Wave 7 (2014-2015) of ELSA. Dementia cases were ascertained via self- or carer-report or dementia medication at these waves. The medeff command in Stata version 17 was used to do cross-section mediation analysis between hearing ability, loneliness, and dementia (Waves 3-7). Path-specific effects proportional (cause-specific) hazard models were then used to investigate longitudinal mediation (Waves 2-7). RESULTS In cross-sectional analyses in Wave 7 alone, loneliness only mediated 5.4% of the total effects of limited hearing on dementia (indirect effects = increased risk of 0.06%; 95% CI: 0.002%-0.15%) under limited hearing and 0.04% (95% CI: 0.001%-0.11%) under normal hearing). In longitudinal analyses, there was no statistical evidence of a mediating role for loneliness in explaining the relationship between hearing ability and time-to-dementia (indirect effect estimate hazard ratio = 1.01 (95% CI: 0.99-1.05). CONCLUSION In this community-dwelling sample of English adults, there is a lack of evidence that loneliness mediates the relationship between hearing ability and dementia in both cross-sectional and longitudinal analyses. However, as the number of dementia cases in this cohort was low, replication in other cohorts with larger sample sizes is required to confirm the absence of a mediated effect via loneliness.
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Affiliation(s)
- Ruth A Hackett
- Health Psychology Section, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Tat Thang Vo
- Department of Statistics and Data Science, The Wharton School, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Stijn Vansteelandt
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium
| | - Hilary Davies-Kershaw
- Department of Population Health, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
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6
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Oliveira LC, Ponciano A, Tuozzo C, Viswanathan A, Rost NS, Etherton MR. Poststroke Disability: Association Between Sex and Patient-Reported Outcomes. Stroke 2023; 54:345-353. [PMID: 36689580 DOI: 10.1161/strokeaha.122.041502] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/12/2022] [Indexed: 01/24/2023]
Abstract
BACKGROUND Ischemic stroke (IS) is a leading cause of long-term disability with sex-specific differences in outcomes. Identifying the influential factors that contribute to sex-specific disparities in stroke outcomes, therefore, holds potential to develop individualized interventions for reducing long-term disability. Further, investigating the association between sex and Patient-Reported Outcome Measures (PROMs) provides additional information on the individual impact and heterogeneity of IS. We aimed to identify sex-specific differences in stroke outcomes and relationship with PROMs in IS patients with 3-month follow-up. METHODS Between February 2017 and February 2020, a total of 410 patients admitted with IS to the Massachusetts General Hospital, in Boston, were enrolled in this prospective cohort. At 3-month poststroke, patients were assessed for Barthel Index, modified Rankin Scale, and PROM-10 questionnaires. T scores for physical and mental health were determined from the summing of PROM-10 responses in each domain. Regression analysis was performed to identify sex-specific determinants of functional and patient-reported outcomes. RESULTS At baseline, 242 participants were male (mean age, 65 years) and 168 were female (mean age, 70 years). Groups had similar rates of cardiovascular risk factors, admission National Institutes of Health Stroke Scale, and discharge modified Rankin Scale. At follow-up, male participants were more likely to have better rates of T Physical and Barthel Index. In regression analysis, PROMs T Physical (odds ratio, 1.06; P=0.01), Barthel Index (odds ratio, 1.06; P=0.01), and modified Rankin Scale score of ≥2 (odds ratio, 2.60; P=0.01) were associated with female sex. Female sex was also associated with lower scores for PROMs Physical subcomponents and with patient-reported general health and emotional problems. CONCLUSIONS Women have worse outcomes after ischemic stroke, including objective measures of functional disability and patient-reported outcomes. Incorporating PROMs into IS outcome measures may offer additional insight into sex-specific differences in stroke recovery and outcomes.
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Affiliation(s)
- Lara C Oliveira
- J Philip Kistler Stroke Research Center, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston (L.C.O., A.P., C.T., A.V., N.S.R.)
| | - Ana Ponciano
- J Philip Kistler Stroke Research Center, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston (L.C.O., A.P., C.T., A.V., N.S.R.)
| | - Carissa Tuozzo
- J Philip Kistler Stroke Research Center, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston (L.C.O., A.P., C.T., A.V., N.S.R.)
| | - Anand Viswanathan
- J Philip Kistler Stroke Research Center, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston (L.C.O., A.P., C.T., A.V., N.S.R.)
| | - Natalia S Rost
- J Philip Kistler Stroke Research Center, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston (L.C.O., A.P., C.T., A.V., N.S.R.)
| | - Mark R Etherton
- Biogen Inc, Stroke/Acute Neurology Neurovascular Therapeutics Development Unit, Cambridge, MA (M.R.E.)
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Sex/gender and socioeconomic differences in modifiable risk factors for dementia. Sci Rep 2023; 13:80. [PMID: 36596822 PMCID: PMC9810648 DOI: 10.1038/s41598-022-27368-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 12/30/2022] [Indexed: 01/04/2023] Open
Abstract
Both sex/gender and socioeconomic differences have been reported in the prevalence of modifiable risk factors for dementia. However, it remains unclear whether the associations between modifiable risk factors for dementia and incident dementia differ by sex/gender or socioeconomic status. This study aimed to investigate sex/gender and socioeconomic differences in the associations of modifiable risk factors with incident dementia using a life-course perspective. We used data from the English Longitudinal Study of Ageing (2008/2009 to 2018/2019). A total of 8,941 individuals were included [mean (standard deviation) age, 66.1 ± 9.8 years; 4,935 (55.2%) were women]. No overall sex/gender difference in dementia risk was found. Dementia risk was higher among those who experienced childhood deprivation [hazard ratio (HR) = 1.51 (1.17; 1.96)], lower occupational attainment [HR low versus high = 1.60 (1.23; 2.09) and HR medium versus high = 1.53 (1.15; 2.06)], and low wealth [HR low versus high = 1.63 (1.26; 2.12)]. Though different associations were found among the subgroups, there might be a sex/gender difference in dementia risk only for low cognitive activity, suggesting a higher risk for women [HR = 2.61 (1.89; 3.60)] compared to men [HR = 1.73 (1.20; 2.49)]. No consistent socioeconomic differences in modifiable dementia risk were found. A population-based approach that tackles inequalities in dementia risk profiles directly may be more effective than individual approaches in dementia prevention.
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Taylor-Rowan M, Nafisi S, Owen R, Duffy R, Patel A, Burton JK, Quinn TJ. Informant-based screening tools for dementia: an overview of systematic reviews. Psychol Med 2023; 53:580-589. [PMID: 34030753 DOI: 10.1017/s0033291721002002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Informant-based questionnaires may have utility for cognitive impairment or dementia screening. Reviews describing the accuracy of respective questionnaires are available, but their focus on individual questionnaires precludes comparisons across tools. We conducted an overview of systematic reviews to assess the comparative accuracy of informant questionnaires and identify areas where evidence is lacking. METHODS We searched six databases to identify systematic reviews describing diagnostic test accuracy of informant questionnaires for cognitive impairment or dementia. We pooled sensitivity and specificity data for each questionnaire and used network approaches to compare accuracy estimates across the differing tests. We used grading of recommendations, assessment, development and evaluation (GRADE) to evaluate the overall certainty of evidence. Finally, we created an evidence 'heat-map', describing the availability of accurate data for individual tests in different populations and settings. RESULTS We identified 25 reviews, consisting of 93 studies and 13 informant questionnaires. Pooled analysis (37 studies; 11 052 participants) ranked the eight-item interview to ascertain dementia (AD8) highest for sensitivity [90%; 95% credible intervals (CrI) = 82-95; 'best-test' probability = 36]; while the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) was most specific (81%; 95% CrI = 66-90; 'best-test' probability = 29%). GRADE-based evaluation of evidence suggested certainty was 'low' overall. Our heat-map indicated that only AD8 and IQCODE have been extensively evaluated and most studies have been in the secondary care settings. CONCLUSIONS AD8 and IQCODE appear to be valid questionnaires for cognitive impairment or dementia assessment. Other available informant-based cognitive screening questionnaires lack evidence to justify their use at present. Evidence on the accuracy of available tools in primary care settings and with specific populations is required.
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Affiliation(s)
- Martin Taylor-Rowan
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow G12 8TA, UK
| | - Sara Nafisi
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow G12 8TA, UK
| | - Rhiannon Owen
- Swansea University Medical School, Swansea University, Singleton Park, Swansea SA2 8PP, UK
| | - Robyn Duffy
- Older People's Psychology Service, NHS Greater Glasgow and Clyde, Glasgow G12 0XH, UK
| | - Amit Patel
- Swansea University Medical School, Swansea University, Singleton Park, Swansea SA2 8PP, UK
| | - Jennifer K Burton
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow G12 8TA, UK
| | - Terence J Quinn
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow G12 8TA, UK
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9
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Santoso C, Stuckler D, Ihle A. Investigating longitudinal associations of hair cortisol and cortisone with cognitive functioning and dementia. Sci Rep 2022; 12:20642. [PMID: 36450857 PMCID: PMC9712516 DOI: 10.1038/s41598-022-25143-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022] Open
Abstract
We rigorously investigated potential longitudinal associations of hair cortisol and cortisone with verbal memory, time orientation, and dementia, adjusting for sociodemographic and health confounders. Data from the English Longitudinal Study of Ageing wave 6-9 (6-year follow-up, covering 4399 persons aged 50+) were analysed using linear random effects and cox regression models. In unadjusted models, hair cortisol was associated with worsened verbal memory (β 0.19; SE 0.08), but not with time orientation (β 0.02; SE 0.01), or dementia (β 0.07; SE 0.16). Hair cortisone was associated with worsened verbal memory (β 0.74; SE 0.14) and time orientation (β 0.06; SE 0.02), but not with dementia (β 0.47; SE 0.28). However, in the fully adjusted models, neither hair cortisol nor cortisone was associated with verbal memory, time orientation, or dementia. Consistent with prior studies, we found that more advanced age was associated with worsened verbal memory (β 0.15; SE 0.01), time orientation (β 0.01; SE 0.00), and dementia risk (β 0.11; SE 0.02). Our rigorous analyses did not detect robust associations of neither hair cortisol nor cortisone with cognitive functioning or dementia across 6 years. More detailed insights into potential mechanisms are discussed.
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Affiliation(s)
- Cornelia Santoso
- Faculty of Public Health, University of Debrecen, Debrecen, Hungary.
| | - David Stuckler
- Dondena Centre for Research On Social Dynamics, Bocconi University, Milan, Italy
| | - Andreas Ihle
- Department of Psychology, University of Geneva, 1205, Geneva, Switzerland
- Center for the Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, 1205, Geneva, Switzerland
- Swiss National Centre of Competence in Research LIVES-Overcoming Vulnerability: Life Course Perspectives, 1015, Lausanne, Switzerland
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Xiang X, Cho J, Sun Y, Wang X. Childhood adversity and cognitive impairment in later life. Front Psychol 2022; 13:935254. [PMID: 36051218 PMCID: PMC9424901 DOI: 10.3389/fpsyg.2022.935254] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 07/26/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives This study examined the association between childhood adversity and cognitive impairment in later life and explored the potential moderation effect of gender and race. Methods The study sample included 15,133 participants of the Health and Retirement Study (1998-2016 surveys) who had complete data on key study measures and were more than 50. The outcome variable is a dichotomous indicator of cognitive impairment as assessed by the Telephone Interview for Cognitive Status for self-respondents and the 16-item Informant Questionnaire on Cognitive Decline in the Elderly for proxies. A total of six childhood adversity indicators included grade retention, parental substance abuse, physical abuse, trouble with the police, moving due to financial hardship, and receipt of help due to financial hardship in early life. The estimation of the association between childhood adversity and cognitive impairment involved Cox proportional hazards regression. Results: Grade retention had the largest effect on incident cognitive impairment (HR = 1.3, 95% CI = 1.23-1.38, p < 0.001), followed by physical abuse by a parent (HR = 1.10, 95% CI = 1.00-1.20, p = 0.001). The impact of grade retention was more detrimental to women than men (interaction term HR = 0.89, 95% CI = 0.80-1.00, p = 0.048, female as the reference). Parental substance abuse was associated with a lower risk of incident cognitive impairment for most racial groups (HR = 0.89, 95% CI = 0.83-0.95, p = 0.001), but this association was reversed in "non-Hispanic other" race, consisting mainly of Asians (HR = 1.54, 95% CI = 1.05-2.26, p = 0.025). Discussion Some aspects of childhood adversity continue to harm cognitive functioning in later life, while some events may have the opposite effect, with evidence of heterogeneity across gender and race.
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Affiliation(s)
- Xiaoling Xiang
- School of Social Work, University of Michigan, Ann Arbor, MI, United States
| | - Joonyoung Cho
- School of Social Work, University of Michigan, Ann Arbor, MI, United States
| | - Yihang Sun
- School of Social Work, Columbia University, New York, NY, United States
| | - Xiafei Wang
- School of Social Work, David B. Falk College of Sport and Human Dynamics, Syracuse University, New York, NY, United States
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12
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Haas LEM, Boumendil A, Flaatten H, Guidet B, Ibarz M, Jung C, Moreno R, Morandi A, Andersen FH, Zafeiridis T, Walther S, Oeyen S, Leaver S, Watson X, Boulanger C, Szczeklik W, Schefold JC, Cecconi M, Marsh B, Joannidis M, Nalapko Y, Elhadi M, Fjølner J, Artigas A, de Lange DW, Joannidis M, Eller P, Helbok R, Schmutz R, Nollet J, de Neve N, De Buysscher P, Oeyen S, Swinnen W, Mikačić M, Bastiansen A, Husted A, Dahle BES, Cramer C, Sølling C, Ørsnes D, Thomsen JE, Pedersen JJ, Enevoldsen MH, Elkmann T, Kubisz-Pudelko A, Pope A, Collins A, Raj AS, Boulanger C, Frey C, Hart C, Bolger C, Spray D, Randell G, Filipe H, Welters ID, Grecu I, Evans J, Cupitt J, Lord J, Henning J, Jones J, Ball J, North J, Salaunkey K, De Gordoa LOR, Bell L, Balasubramaniam M, Vizcaychipi M, Faulkner M, Mupudzi M, Lea-Hagerty M, Reay M, Spivey M, Love N, Spittle NSN, White N, Williams P, Morgan P, Wakefield P, Savine R, Jacob R, Innes R, Kapoor R, Humphreys S, Rose S, Dowling S, Leaver S, Mane T, Lawton T, Ogbeide V, Khaliq W, Baird Y, Romen A, Galbois A, Guidet B, Vinsonneau C, Charron C, Thevenin D, Guerot E, Besch G, Savary G, Mentec H, Chagnon JL, Rigaud JP, Quenot JP, Castaneray J, Rosman J, Maizel J, Tiercelet K, Vettoretti L, Hovaere MM, Messika M, Djibré M, Rolin N, Burtin P, Garcon P, Nseir S, Valette X, Rabe C, Barth E, Ebelt H, Fuest K, Franz M, Horacek M, Schuster M, Meybohm P, Bruno RR, Allgäuer S, Dubler S, Schaller SJ, Schering S, Steiner S, Dieck T, Rahmel T, Graf T, Koutsikou A, Vakalos A, Raitsiou B, Flioni EN, Neou E, Tsimpoukas F, Papathanakos G, Marinakis G, Koutsodimitropoulos I, Aikaterini K, Rovina N, Kourelea S, Polychronis T, Zidianakis V, Konstantinia V, Aidoni Z, Marsh B, Motherway C, Read C, Martin-Loeches I, Cracchiolo AN, Morigi A, Calamai I, Brusa S, Elhadi A, Tarek A, Khaled A, Ahmed H, Belkhair WA, Cornet AD, Gommers D, de Lange D, van Boven E, Haringman J, Haas L, van den Berg L, Hoiting O, de Jager P, Gerritsen RT, Dormans T, Dieperink W, Breidablik ABA, Slapgard A, Rime AK, Jannestad B, Sjøbøe B, Rice E, Andersen FH, Strietzel HF, Jensen JP, Langørgen J, Tøien K, Strand K, Hahn M, Klepstad P, Biernacka A, Kluzik A, Kudlinski B, Maciejewski D, Studzińska D, Hymczak H, Stefaniak J, Solek-Pastuszka J, Zorska J, Cwyl K, Krzych LJ, Zukowski M, Lipińska-Gediga M, Pietruszko M, Piechota M, Serwa M, Czuczwar M, Ziętkiewicz M, Kozera N, Nasiłowski P, Sendur P, Zatorski P, Galkin P, Gawda R, Kościuczuk U, Cyrankiewicz W, Gola W, Pinto AF, Fernandes AM, Santos AR, Sousa C, Barros I, Ferreira IA, Blanco JB, Carvalho JT, Maia J, Candeias N, Catorze N, Belskiy V, Lores A, Mira AP, Cilloniz C, Perez-Torres D, Maseda E, Rodriguez E, Prol-Silva E, Eixarch G, Gomà G, Aguilar G, Velasco GN, Jaimes MI, Villamayor MI, Fernández NL, Cubero PJ, López-Cuenca S, Tomasa T, Sjöqvist A, Brorsson C, Schiöler F, Westberg H, Nauska J, Sivik J, Berkius J, Thiringer KK, De Geer L, Walther S, Boroli F, Schefold JC, Hergafi L, Eckert P, Yıldız I, Yovenko I, Nalapko Y, Nalapko Y, Pugh R. Frailty is associated with long-term outcome in patients with sepsis who are over 80 years old: results from an observational study in 241 European ICUs. Age Ageing 2021; 50:1719-1727. [PMID: 33744918 DOI: 10.1093/ageing/afab036] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Sepsis is one of the most frequent reasons for acute intensive care unit (ICU) admission of very old patients and mortality rates are high. However, the impact of pre-existing physical and cognitive function on long-term outcome of ICU patients ≥ 80 years old (very old intensive care patients (VIPs)) with sepsis is unclear. OBJECTIVE To investigate both the short- and long-term mortality of VIPs admitted with sepsis and assess the relation of mortality with pre-existing physical and cognitive function. DESIGN Prospective cohort study. SETTING 241 ICUs from 22 European countries in a six-month period between May 2018 and May 2019. SUBJECTS Acutely admitted ICU patients aged ≥80 years with sequential organ failure assessment (SOFA) score ≥ 2. METHODS Sepsis was defined according to the sepsis 3.0 criteria. Patients with sepsis as an admission diagnosis were compared with other acutely admitted patients. In addition to patients' characteristics, disease severity, information about comorbidity and polypharmacy and pre-existing physical and cognitive function were collected. RESULTS Out of 3,596 acutely admitted VIPs with SOFA score ≥ 2, a group of 532 patients with sepsis were compared to other admissions. Predictors for 6-month mortality were age (per 5 years): Hazard ratio (HR, 1.16 (95% confidence interval (CI), 1.09-1.25, P < 0.0001), SOFA (per one-point): HR, 1.16 (95% CI, 1.14-1.17, P < 0.0001) and frailty (CFS > 4): HR, 1.34 (95% CI, 1.18-1.51, P < 0.0001). CONCLUSIONS There is substantial long-term mortality in VIPs admitted with sepsis. Frailty, age and disease severity were identified as predictors of long-term mortality in VIPs admitted with sepsis.
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Affiliation(s)
- Lenneke E M Haas
- Department of Intensive Care Medicine, Diakonessenhuis Utrecht, Utrecht, The Netherlands
| | - Ariane Boumendil
- Assistance Publique-Hôpital de Paris, Hôpital Saint-Antoine, Service de Réanimation Médicale. Paris F-75012, France
| | - Hans Flaatten
- Department of Clinical Medicine, University of Bergen, Department of Anaesthesia and Intensive Care, Haukeland University Hospital, Bergen, Norway
| | - Bertrand Guidet
- Institut Pierre Louis d’Epidémiologie et de Santé Publique, AP-HP, Hôpital Saint-Antoine, Service de Réanimation, Sorbonne Université, INSERM, F75012 Paris, France
| | - Mercedes Ibarz
- Department of Intensive Care Medicine, Universitary Hospital Sagrat Cor Barcelona, Spain
| | - Christian Jung
- Division of Cardiology, Pulmonology and Vascular Medicine, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Rui Moreno
- Unidade de Cuidados Intensivos Neurocríticos e Trauma. Hospital de São José, Centro Hospitalar, Faculdade de Ciências Médicas de Lisboa (Nova Medical School), Universitário de Lisboa Central, Lisbon, Portugal
| | - Alessandro Morandi
- Department of Rehabilitation and Aged Care, Hospital Ancelle, Cremona, Italy. Parc Sanitari Pere Virgili and Vall d’Hebrón Institute of Research, Barcelona, Spain
| | - Finn H Andersen
- Department of Anaesthesia and Intensive Care, Ålesund Hospital, Ålesund, Norway, Department of Circulation and Medical Imaging, NTNU, Trondheim, Norway
| | | | - Sten Walther
- Department of Cardiothoracic and Vascular Surgery, Heart Centre, Linköping University Hospital, Linköping, Sweden
| | - Sandra Oeyen
- Department of Intensive Care 1K12IC, Ghent University Hospital, Ghent, Belgium
| | - Susannah Leaver
- Research Lead Critical Care Directorate St George's University Hospital, NHS Foundation Trust, London, UK
| | | | - Carole Boulanger
- Chair NAHP Section ESICM, Intensive Care Unit, Royal Devon & Exeter NHS Foundation Trust, Exeter, UK
| | - Wojciech Szczeklik
- Intensive Care and Perioperative Medicine Division, Jagiellonian University Medical College, Kraków, Poland
| | - Joerg C Schefold
- Department of Intensive Care Medicine, Inselspital, Universitätsspital, University of Bern, Bern, Switzerland
| | - Maurizio Cecconi
- Department of Anesthesia and Intensive Care Medicine, Humanitas Clinical and Research Center - IRCCS, Via Alessandro Manzoni 56, 20089, Rozzano, MI, Italy. Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Rozzano, MI, Italy
| | - Brian Marsh
- Mater Misericordiae University Hospital, Dublin, Ireland
| | - Michael Joannidis
- Division of Intensive Care and Emergency Medicine, Department of Internal Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Yuriy Nalapko
- European Wellness International, ICU, Luhansk, Ukraine
| | | | - Jesper Fjølner
- Department of Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Antonio Artigas
- Department of Intensive Care Medicine, CIBER Enfermedades Respiratorias, Corporacion Sanitaria Universitaria Parc Tauli, Autonomous University of Barcelona. Sabadell, Spain
| | - Dylan W de Lange
- Department of Intensive Care Medicine, University Medical Center, University Utrecht, Utrecht, The Netherlands
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Burton JK, Fearon P, Noel-Storr AH, McShane R, Stott DJ, Quinn TJ. Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) for the detection of dementia within a secondary care setting. Cochrane Database Syst Rev 2021; 7:CD010772. [PMID: 34278561 PMCID: PMC8406705 DOI: 10.1002/14651858.cd010772.pub3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND The diagnosis of dementia relies on the presence of new-onset cognitive impairment affecting an individual's functioning and activities of daily living. The Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) is a questionnaire instrument, completed by a suitable 'informant' who knows the patient well, designed to assess change in functional performance secondary to cognitive change; it is used as a tool for identifying those who may have dementia. In secondary care there are two specific instances where patients may be assessed for the presence of dementia. These are in the general acute hospital setting, where opportunistic screening may be undertaken, or in specialist memory services where individuals have been referred due to perceived cognitive problems. To ensure an instrument is suitable for diagnostic use in these settings, its test accuracy must be established. OBJECTIVES To determine the accuracy of the informant-based questionnaire IQCODE for detection of dementia in a secondary care setting. SEARCH METHODS We searched the following sources on the 28th of January 2013: ALOIS (Cochrane Dementia and Cognitive Improvement Group), MEDLINE (Ovid SP), EMBASE (Ovid SP), PsycINFO (Ovid SP), BIOSIS Previews (Thomson Reuters Web of Science), Web of Science Core Collection (includes Conference Proceedings Citation Index) (Thomson Reuters Web of Science), CINAHL (EBSCOhost) and LILACS (BIREME). We also searched sources specific to diagnostic test accuracy: MEDION (Universities of Maastricht and Leuven); DARE (Database of Abstracts of Reviews of Effects - via the Cochrane Library); HTA Database (Health Technology Assessment Database via the Cochrane Library) and ARIF (Birmingham University). We also checked reference lists of relevant studies and reviews, used searches of known relevant studies in PubMed to track related articles, and contacted research groups conducting work on IQCODE for dementia diagnosis to try to find additional studies. We developed a sensitive search strategy; search terms were designed to cover key concepts using several different approaches run in parallel and included terms relating to cognitive tests, cognitive screening and dementia. We used standardised database subject headings such as MeSH terms (in MEDLINE) and other standardised headings (controlled vocabulary) in other databases, as appropriate. SELECTION CRITERIA We selected those studies performed in secondary-care settings, which included (not necessarily exclusively) IQCODE to assess for the presence of dementia and where dementia diagnosis was confirmed with clinical assessment. For the 'secondary care' setting we included all studies which assessed patients in hospital (e.g. acute unscheduled admissions, referrals to specialist geriatric assessment services etc.) and those referred for specialist 'memory' assessment, typically in psychogeriatric services. DATA COLLECTION AND ANALYSIS We screened all titles generated by electronic database searches, and reviewed abstracts of all potentially relevant studies. Two independent assessors checked full papers for eligibility and extracted data. We determined quality assessment (risk of bias and applicability) using the QUADAS-2 tool, and reporting quality using the STARD tool. MAIN RESULTS From 72 papers describing IQCODE test accuracy, we included 13 papers, representing data from 2745 individuals (n = 1413 (51%) with dementia). Pooled analysis of all studies using data presented closest to a cut-off of 3.3 indicated that sensitivity was 0.91 (95% CI 0.86 to 0.94); specificity 0.66 (95% CI 0.56 to 0.75); the positive likelihood ratio was 2.7 (95% CI 2.0 to 3.6) and the negative likelihood ratio was 0.14 (95% CI 0.09 to 0.22). There was a statistically significant difference in test accuracy between the general hospital setting and the specialist memory setting (P = 0.019), suggesting that IQCODE performs better in a 'general' setting. We found no significant differences in the test accuracy of the short (16-item) versus the 26-item IQCODE, or in the language of administration. There was significant heterogeneity in the included studies, including a highly varied prevalence of dementia (10.5% to 87.4%). Across the included papers there was substantial potential for bias, particularly around sampling of included participants and selection criteria, which may limit generalisability. There was also evidence of suboptimal reporting, particularly around disease severity and handling indeterminate results, which are important if considering use in clinical practice. AUTHORS' CONCLUSIONS The IQCODE can be used to identify older adults in the general hospital setting who are at risk of dementia and require specialist assessment; it is useful specifically for ruling out those without evidence of cognitive decline. The language of administration did not affect test accuracy, which supports the cross-cultural use of the tool. These findings are qualified by the significant heterogeneity, the potential for bias and suboptimal reporting found in the included studies.
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Affiliation(s)
- Jennifer K Burton
- Academic Geriatric Medicine, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Patricia Fearon
- Academic Section of Geriatric Medicine, University of Glasgow, Glasgow, UK
| | | | | | - David J Stott
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow , UK
| | - Terry J Quinn
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
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Burton JK, Fearon P, Noel-Storr AH, McShane R, Stott DJ, Quinn TJ. Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) for the detection of dementia within a general practice (primary care) setting. Cochrane Database Syst Rev 2021; 7:CD010771. [PMID: 34278564 PMCID: PMC8406468 DOI: 10.1002/14651858.cd010771.pub3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The IQCODE (Informant Questionnaire for Cognitive Decline in the Elderly) is a commonly used questionnaire based tool that uses collateral information to assess for cognitive decline and dementia. Brief tools that can be used for dementia "screening" or "triage" may have particular utility in primary care / general practice healthcare settings but only if they have suitable test accuracy. A synthesis of the available data regarding IQCODE accuracy in a primary care setting should help inform cognitive assessment strategies for clinical practice; research and policy. OBJECTIVES To determine the accuracy of the informant-based questionnaire IQCODE, for detection of dementia in a primary care setting. SEARCH METHODS A search was performed in the following sources on the 28th of January 2013: ALOIS (Cochrane Dementia and Cognitive Improvement Group), MEDLINE (Ovid SP), EMBASE (Ovid SP), PsycINFO (Ovid SP), BIOSIS (Ovid SP), ISI Web of Science and Conference Proceedings (ISI Web of Knowledge), CINHAL (EBSCOhost) and LILACs (BIREME). We also searched sources specific to diagnostic test accuracy: MEDION (Universities of Maastricht and Leuven); DARE (York University); HTA Database (Health Technology Assessments Database via The Cochrane Library) and ARIF (Birmingham University). We developed a sensitive search strategy; search terms were designed to cover key concepts using several different approaches run in parallel and included terms relating to cognitive tests, cognitive screening and dementia. We used standardized database subject headings such as MeSH terms (in MEDLINE) and other standardized headings (controlled vocabulary) in other databases, as appropriate. SELECTION CRITERIA We selected those studies performed in primary care settings, which included (not necessarily exclusively) IQCODE to assess for the presence of dementia and where dementia diagnosis was confirmed with clinical assessment. For the "primary care" setting, we included those healthcare settings where unselected patients, present for initial, non-specialist assessment of memory or non-memory related symptoms; often with a view to onward referral for more definitive assessment. DATA COLLECTION AND ANALYSIS We screened all titles generated by electronic database searches and abstracts of all potentially relevant studies were reviewed. Full papers were assessed for eligibility and data extracted by two independent assessors. Quality assessment (risk of bias and applicability) was determined using the QUADAS-2 tool. Reporting quality was determined using the STARDdem extension to the STARD tool. MAIN RESULTS From 71 papers describing IQCODE test accuracy, we included 1 paper, representing data from 230 individuals (n=16 [7%] with dementia). The paper described those patients consulting a primary care service who self-identified as Japanese-American. Dementia diagnosis was made using Benson & Cummings criteria and the IQCODE was recorded as part of a longer interview with the informant. IQCODE accuracy was assessed at various test thresholds, with a "trade-off" between sensitivity and specificity across these cutpoints. At an IQCODE threshold of 3.2 sensitivity: 100%, specificity: 76%; for IQCODE 3.7 sensitivity: 75%, specificity: 98%. Applying the QUADAS-2 assessments, the study was at high risk of bias in all categories. In particular degree of blinding was unclear and not all participants were included in the final analysis. AUTHORS' CONCLUSIONS It is not possible to give definitive guidance on the test accuracy of IQCODE for the diagnosis of dementia in a primary care setting based on the single study identified. We are surprised by the lack of research using the IQCODE in primary care as this is, arguably, the most appropriate setting for targeted case finding of those with undiagnosed dementia in order to maximise opportunities to intervene and provide support for the individual and their carers.
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Affiliation(s)
- Jennifer K Burton
- Academic Geriatric Medicine, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Patricia Fearon
- Academic Section of Geriatric Medicine, University of Glasgow, Glasgow, UK
| | | | - Rupert McShane
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - David J Stott
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow , UK
| | - Terry J Quinn
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
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Burton JK, Stott DJ, McShane R, Noel-Storr AH, Swann-Price RS, Quinn TJ. Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) for the early detection of dementia across a variety of healthcare settings. Cochrane Database Syst Rev 2021; 7:CD011333. [PMID: 34275145 PMCID: PMC8406787 DOI: 10.1002/14651858.cd011333.pub3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND The Informant Questionnaire for Cognitive Decline in the Elderly (IQCODE) is a structured interview based on informant responses that is used to assess for possible dementia. IQCODE has been used for retrospective or contemporaneous assessment of cognitive decline. There is considerable interest in tests that may identify those at future risk of developing dementia. Assessing a population free of dementia for the prospective development of dementia is an approach often used in studies of dementia biomarkers. In theory, questionnaire-based assessments, such as IQCODE, could be used in a similar way, assessing for dementia that is diagnosed on a later (delayed) assessment. OBJECTIVES To determine the accuracy of the informant-based questionnaire IQCODE for the early detection of dementia across a variety of health care settings. SEARCH METHODS We searched these sources on 16 January 2016: ALOIS (Cochrane Dementia and Cognitive Improvement Group), MEDLINE Ovid SP, Embase Ovid SP, PsycINFO Ovid SP, BIOSIS Previews on Thomson Reuters Web of Science, Web of Science Core Collection (includes Conference Proceedings Citation Index) on Thomson Reuters Web of Science, CINAHL EBSCOhost, and LILACS BIREME. We also searched sources specific to diagnostic test accuracy: MEDION (Universities of Maastricht and Leuven); DARE (Database of Abstracts of Reviews of Effects, in the Cochrane Library); HTA Database (Health Technology Assessment Database, in the Cochrane Library), and ARIF (Birmingham University). We checked reference lists of included studies and reviews, used searches of included studies in PubMed to track related articles, and contacted research groups conducting work on IQCODE for dementia diagnosis to try to find additional studies. We developed a sensitive search strategy; search terms were designed to cover key concepts using several different approaches run in parallel, and included terms relating to cognitive tests, cognitive screening, and dementia. We used standardised database subject headings, such as MeSH terms (in MEDLINE) and other standardised headings (controlled vocabulary) in other databases, as appropriate. SELECTION CRITERIA We selected studies that included a population free from dementia at baseline, who were assessed with the IQCODE and subsequently assessed for the development of dementia over time. The implication was that at the time of testing, the individual had a cognitive problem sufficient to result in an abnormal IQCODE score (defined by the study authors), but not yet meeting dementia diagnostic criteria. DATA COLLECTION AND ANALYSIS We screened all titles generated by the electronic database searches, and reviewed abstracts of all potentially relevant studies. Two assessors independently checked the full papers for eligibility and extracted data. We determined quality assessment (risk of bias and applicability) using the QUADAS-2 tool, and reported quality using the STARDdem tool. MAIN RESULTS From 85 papers describing IQCODE, we included three papers, representing data from 626 individuals. Of this total, 22% (N = 135/626) were excluded because of prevalent dementia. There was substantial attrition; 47% (N = 295) of the study population received reference standard assessment at first follow-up (three to six months) and 28% (N = 174) received reference standard assessment at final follow-up (one to three years). Prevalence of dementia ranged from 12% to 26% at first follow-up and 16% to 35% at final follow-up. The three studies were considered to be too heterogenous to combine, so we did not perform meta-analyses to describe summary estimates of interest. Included patients were poststroke (two papers) and hip fracture (one paper). The IQCODE was used at three thresholds of positivity (higher than 3.0, higher than 3.12 and higher than 3.3) to predict those at risk of a future diagnosis of dementia. Using a cut-off of 3.0, IQCODE had a sensitivity of 0.75 (95%CI 0.51 to 0.91) and a specificity of 0.46 (95%CI 0.34 to 0.59) at one year following stroke. Using a cut-off of 3.12, the IQCODE had a sensitivity of 0.80 (95%CI 0.44 to 0.97) and specificity of 0.53 (95C%CI 0.41 to 0.65) for the clinical diagnosis of dementia at six months after hip fracture. Using a cut-off of 3.3, the IQCODE had a sensitivity of 0.84 (95%CI 0.68 to 0.94) and a specificity of 0.87 (95%CI 0.76 to 0.94) for the clinical diagnosis of dementia at one year after stroke. In generaI, the IQCODE was sensitive for identification of those who would develop dementia, but lacked specificity. Methods for both excluding prevalent dementia at baseline and assessing for the development of dementia were varied, and had the potential to introduce bias. AUTHORS' CONCLUSIONS Included studies were heterogenous, recruited from specialist settings, and had potential biases. The studies identified did not allow us to make specific recommendations on the use of the IQCODE for the future detection of dementia in clinical practice. The included studies highlighted the challenges of delayed verification dementia research, with issues around prevalent dementia assessment, loss to follow-up over time, and test non-completion potentially limiting the studies. Future research should recognise these issues and have explicit protocols for dealing with them.
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Affiliation(s)
- Jennifer K Burton
- Academic Geriatric Medicine, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - David J Stott
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow , UK
| | | | | | | | - Terry J Quinn
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
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Almeida-Meza P, Steptoe A, Cadar D. Markers of cognitive reserve and dementia incidence in the English Longitudinal Study of Ageing. Br J Psychiatry 2021; 218:243-251. [PMID: 32223764 PMCID: PMC7529639 DOI: 10.1192/bjp.2020.54] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND In the current climate of an ageing population, it is imperative to identify preventive measures for dementia. AIMS We implemented a multifaceted index of cognitive reserve markers and investigated dementia incidence over 15 years of follow-up in a representative sample of the English population. METHOD Data were 12 280 participants aged ≥50 years from the English Longitudinal Study of Ageing, free from dementia at their baseline assessments during wave 1 (2002-2003), 3 (2006-2007) or 4 (2008-2009), and followed up until wave 8 (2016-2017). The Cognitive Reserve Index was constructed as a composite measure of education, occupation and leisure activities, using a standardised questionnaire. Cox proportional hazards regression models were used to estimate the hazard ratios of dementia in relation to cognitive reserve levels (low, medium and high) and its components (education, occupation and leisure activities). RESULTS During the follow-up period, 602 participants aged 56-99 years developed dementia. Higher levels of cognitive reserve (hazard ratio 0.65, 95% CI 0.48-0.89, P = 0.008) were associated with a lower risk of dementia. An individual analysis of its components showed that higher levels of education (hazard ratio 0.56, 95% CI 0.36-0.88, P = 0.012), occupation (hazard ratio 0.72, 95% CI 0.56-0.91, P = 0.008) and leisure activities (hazard ratio 0.74, 95% CI 0.56-0.99, P = 0.047) were predictive of a reduced dementia risk, with the first two components particularly protective in younger participants (<85 years). CONCLUSIONS This study showed a reduced risk of dementia for individuals with a higher level of cognitive reserve, represented by higher education, complex occupations and multifaceted level of leisure activities.
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Kokkinou M, Beishon LC, Smailagic N, Noel-Storr AH, Hyde C, Ukoumunne O, Worrall RE, Hayen A, Desai M, Ashok AH, Paul EJ, Georgopoulou A, Casoli T, Quinn TJ, Ritchie CW. Plasma and cerebrospinal fluid ABeta42 for the differential diagnosis of Alzheimer's disease dementia in participants diagnosed with any dementia subtype in a specialist care setting. Cochrane Database Syst Rev 2021; 2:CD010945. [PMID: 33566374 PMCID: PMC8078224 DOI: 10.1002/14651858.cd010945.pub2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Dementia is a syndrome that comprises many differing pathologies, including Alzheimer's disease dementia (ADD), vascular dementia (VaD) and frontotemporal dementia (FTD). People may benefit from knowing the type of dementia they live with, as this could inform prognosis and may allow for tailored treatment. Beta-amyloid (1-42) (ABeta42) is a protein which decreases in both the plasma and cerebrospinal fluid (CSF) of people living with ADD, when compared to people with no dementia. However, it is not clear if changes in ABeta42 are specific to ADD or if they are also seen in other types of dementia. It is possible that ABeta42 could help differentiate ADD from other dementia subtypes. OBJECTIVES To determine the accuracy of plasma and CSF ABeta42 for distinguishing ADD from other dementia subtypes in people who meet the criteria for a dementia syndrome. SEARCH METHODS We searched MEDLINE, and nine other databases up to 18 February 2020. We checked reference lists of any relevant systematic reviews to identify additional studies. SELECTION CRITERIA We considered cross-sectional studies that differentiated people with ADD from other dementia subtypes. Eligible studies required measurement of participant plasma or CSF ABeta42 levels and clinical assessment for dementia subtype. DATA COLLECTION AND ANALYSIS Seven review authors working independently screened the titles and abstracts generated by the searches. We collected data on study characteristics and test accuracy. We used the second version of the 'Quality Assessment of Diagnostic Accuracy Studies' (QUADAS-2) tool to assess internal and external validity of results. We extracted data into 2 x 2 tables, cross-tabulating index test results (ABeta42) with the reference standard (diagnostic criteria for each dementia subtype). We performed meta-analyses using bivariate, random-effects models. We calculated pooled estimates of sensitivity, specificity, positive predictive values, positive and negative likelihood ratios, and corresponding 95% confidence intervals (CIs). In the primary analysis, we assessed accuracy of plasma or CSF ABeta42 for distinguishing ADD from other mixed dementia types (non-ADD). We then assessed accuracy of ABeta42 for differentiating ADD from specific dementia types: VaD, FTD, dementia with Lewy bodies (DLB), alcohol-related cognitive disorder (ARCD), Creutzfeldt-Jakob disease (CJD) and normal pressure hydrocephalus (NPH). To determine test-positive cases, we used the ABeta42 thresholds employed in the respective primary studies. We then performed sensitivity analyses restricted to those studies that used common thresholds for ABeta42. MAIN RESULTS We identified 39 studies (5000 participants) that used CSF ABeta42 levels to differentiate ADD from other subtypes of dementia. No studies of plasma ABeta42 met the inclusion criteria. No studies were rated as low risk of bias across all QUADAS-2 domains. High risk of bias was found predominantly in the domains of patient selection (28 studies) and index test (25 studies). The pooled estimates for differentiating ADD from other dementia subtypes were as follows: ADD from non-ADD: sensitivity 79% (95% CI 0.73 to 0.85), specificity 60% (95% CI 0.52 to 0.67), 13 studies, 1704 participants, 880 participants with ADD; ADD from VaD: sensitivity 79% (95% CI 0.75 to 0.83), specificity 69% (95% CI 0.55 to 0.81), 11 studies, 1151 participants, 941 participants with ADD; ADD from FTD: sensitivity 85% (95% CI 0.79 to 0.89), specificity 72% (95% CI 0.55 to 0.84), 17 studies, 1948 participants, 1371 participants with ADD; ADD from DLB: sensitivity 76% (95% CI 0.69 to 0.82), specificity 67% (95% CI 0.52 to 0.79), nine studies, 1929 participants, 1521 participants with ADD. Across all dementia subtypes, sensitivity was greater than specificity, and the balance of sensitivity and specificity was dependent on the threshold used to define test positivity. AUTHORS' CONCLUSIONS Our review indicates that measuring ABeta42 levels in CSF may help differentiate ADD from other dementia subtypes, but the test is imperfect and tends to misdiagnose those with non-ADD as having ADD. We would caution against the use of CSF ABeta42 alone for dementia classification. However, ABeta42 may have value as an adjunct to a full clinical assessment, to aid dementia diagnosis.
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Affiliation(s)
- Michelle Kokkinou
- MRC London Institute of Medical Sciences, Imperial College London, London, UK
| | - Lucy C Beishon
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
| | - Nadja Smailagic
- Institute of Public Health, University of Cambridge , Cambridge, UK
| | | | - Chris Hyde
- Exeter Test Group, College of Medicine and Health, University of Exeter Medical School, University of Exeter, Exeter , UK
| | - Obioha Ukoumunne
- NIHR CLAHRC South West Peninsula (PenCLAHRC), University of Exeter Medical School, Exeter, UK
| | | | - Anja Hayen
- Department of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
| | - Meera Desai
- Department of Experimental Psychology, University of Oxford, Oxford, UK
| | - Abhishekh Hulegar Ashok
- MRC London Institute of Medical Sciences, Imperial College London, London, UK
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College , London, UK
| | - Eleanor J Paul
- MRC London Institute of Medical Sciences, Imperial College London, London, UK
- Institute of Clinical Sciences (ICS), Faculty of Medicine, Imperial College London, London, UK
| | | | - Tiziana Casoli
- Center for Neurobiology of Aging, IRCCS INRCA, Ancona, Italy
| | - Terry J Quinn
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - Craig W Ritchie
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
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Almeida-Meza P, Steptoe A, Cadar D. Is Engagement in Intellectual and Social Leisure Activities Protective Against Dementia Risk? Evidence from the English Longitudinal Study of Ageing. J Alzheimers Dis 2021; 80:555-565. [PMID: 33554903 PMCID: PMC8075407 DOI: 10.3233/jad-200952] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: Studies have suggested that mentally stimulating activities and socially engaged lifestyles may reduce dementia risk; however, it is unclear which activities are more beneficial. Objective: We investigated intellectual and social leisure activities in relation to dementia incidence and explored the modifying role of sex and marital status in these associations. Methods: The sample was comprised of 8,030 participants aged 50+ from the English Longitudinal Study of Ageing, who joined at wave 1 (2002-2003), or waves 3 (2006-2007), or 4 (2008-2009). The end of the study period was wave 8 (2016-2017). Subdistribution hazard models investigated the role of leisure activities grouped into intellectual and social domains in relation to dementia while accounting for the risk of death. Subsequent analyses were conducted with individual leisure activities. Results: During the study period of up to 15 years, 412 participants developed dementia, and 2,192 died. We found that increased engagement in the intellectual activities’ domain was associated with a decreased dementia incidence (SHR 0.85, 95% CI 0.76–0.96, p = 0.007), independent of the risk of death in married individuals, but not in those who were single, divorced, or widowed. Individual analyses for each leisure activity showed independent associations for reading newspapers in females (SHR 0.65, 95% CI 0.49–0.84, p = 0.001), mobile phone usage in males (SHR 0.61, 95% CI 0.45–0.84, p = 0.002), and having hobbies for married individuals (SHR 0.70, 95% CI 0.51–0.95, p = 0.02). Conclusion: We found that intellectual leisure activities contribute to lower dementia risk in a representative population of English adults, suggesting intervention opportunities.
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Affiliation(s)
- Pamela Almeida-Meza
- University College London, Department of Behavioral Science and Health, London, UK
| | - Andrew Steptoe
- University College London, Department of Behavioral Science and Health, London, UK
| | - Dorina Cadar
- University College London, Department of Behavioral Science and Health, London, UK
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Bogolepova A, Vasenina E, Gomzyakova N, Gusev E, Dudchenko N, Emelin A, Zalutskaya N, Isaev R, Kotovskaya Y, Levin O, Litvinenko I, Lobzin V, Martynov M, Mkhitaryan E, Nikolay G, Palchikova E, Tkacheva O, Cherdak M, Chimagomedova A, Yakhno N. Clinical Guidelines for Cognitive Disorders in Elderly and Older Patients. Zh Nevrol Psikhiatr Im S S Korsakova 2021. [DOI: 10.17116/jnevro20211211036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Svensson A, Granvik E, Sjögren Forss K. Performance of the Eight-item Informant Interview to Differentiate Aging and Dementia within a context similar to the Swedish primary healthcare sector: a systematic review of diagnostic test accuracy studies. Scand J Prim Health Care 2020; 38:454-463. [PMID: 33216659 PMCID: PMC7782037 DOI: 10.1080/02813432.2020.1844370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE Dementia is a common but underdiagnosed health problem. Instruments developed for initial screening exist internationally but are not available within the Swedish primary healthcare sector. This systematic review aimed to evaluate the diagnostic test accuracy of the Eight-item Informant Interview to Differentiate Aging and Dementia in identifying symptomatic dementia within a context similar to the Swedish primary healthcare sector. DESIGN A systematic search was conducted in PubMed, CINAHL, PsycInfo, Cochrane Library and manually via reference lists up to November 2019. Eligibility criteria were the reporting of Diagnostic test accuracy outcomes for the Eight-item Informant Interview to Differentiate Aging and Dementia's ability to identify dementia according to internationally approved criteria. The population of interest was selected within the community or primary care. QUADAS-2 was used for quality assessment, and data were analysed with a narrative approach. RESULTS Five studies with a total of 13,345 participants were included. With sensitivity (88-100%), specificity (67-91%), positive and negative predictive values (28-63%; 96-100%) respectively, the results show that the Eight-item Informant Interview to Differentiate Aging and Dementia has good ability to identify true positives, false negatives and predict low-risk dementia. That is, the Eight-item Informant Interview to Differentiate Aging and Dementia has a greater ability to predict people who are at risk of not having dementia than to correctly identify those at risk of having dementia within the target population. CONCLUSION The results show that the Eight-item Informant Interview to Differentiate Aging and Dementia has the ability to identify persons with symptomatic dementia within the target population. Thus, an evaluation of its potential benefits should be considered and evaluated within the Swedish primary healthcare context. KEY POINTS Dementia is a common but underdiagnosed health problem. Instruments developed for initial screening exist but are not available within the Swedish primary healthcare sector. We found that the Eight-item Informant Interview to Differentiate Aging and Dementia (AD8), has the ability to identify individuals with symptomatic dementia within the target population. The Eight-item Informant Interview to Differentiate Aging and Dementia (AD8), has the potential to increase the possibility for timely detection of individuals with symptomatic dementia.
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Affiliation(s)
- Annsofie Svensson
- Kunskapscentrum demenssjukdomar VE minnessjukdomar Skånes University Hospital Malmö, Sweden
| | - Eva Granvik
- Kunskapscentrum demenssjukdomar VE minnessjukdomar Skånes University Hospital Malmö, Sweden
| | - Katarina Sjögren Forss
- Faculty of Health and Society, Department of Care Science, Malmö University, Malmö, Sweden
- CONTACT Katarina Sjögren Forss Faculty of Health and Society, Department of Care Science, Malmö University, Jan Waldenströmsgata 25 SE-205 06, Malmö, Sweden
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Taylor-Rowan M, Nafisi S, Patel A, Burton JK, Quinn TJ. Informant-based screening tools for diagnosis of dementia, an overview of systematic reviews of test accuracy studies protocol. Syst Rev 2020; 9:271. [PMID: 33243282 PMCID: PMC7694897 DOI: 10.1186/s13643-020-01530-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 11/12/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Robust diagnosis of dementia requires an understanding of the accuracy of the available diagnostic tests. Informant questionnaires are frequently used to assess for dementia in clinical practice. Recent systematic reviews have sought to establish the diagnostic test accuracy of various dementia informant screening tools. However, most reviews to date have focused on a single diagnostic tool and this does not address which tool is 'best'. A key aim of the overview of systematic reviews is to present a disparate evidence base in a single, easy to access platform. METHODS We will conduct an overview of systematic reviews in which we 'review the systematic reviews' of diagnostic test accuracy studies evaluating informant questionnaires for dementia. As an overview of systematic reviews of test accuracy is a relatively novel approach, we will use this review to explore methods for visual representation of complex data, for highlighting evidence gaps and for indirect comparative analyses. We will create a list of informant tools by consulting with dementia experts. We will search 6 databases (EMBASE (OVID); Health and Psychosocial Instruments (OVID); Medline (OVID); CINAHL (EBSCO); PSYCHinfo (EBSCO) and the PROSPERO registry of review protocols) to identify systematic reviews that describe the diagnostic test accuracy of informant questionnaires for dementia. We will assess review quality using the AMSTAR-2 (Assessment of Multiple Systematic Reviews) and assess reporting quality using PRISMA-DTA (Preferred Reporting Items for Systematic Review and Meta-analysis of Diagnostic Test Accuracy Studies) checklists. We will collate the identified reviews to create an 'evidence map' that highlights where evidence does and does not exist in relation to informant questionnaires. We will pool sensitivity and specificity data via meta-analysis to generate a diagnostic test accuracy summary statistic for each informant questionnaire. If data allow, we will perform a statistical comparison of the diagnostic test accuracy of each informant questionnaire using a network approach. DISCUSSION Our overview of systematic reviews will provide a concise summary of the diagnostic test accuracy of informant tools and highlight areas where evidence is currently lacking in this regard. It will also apply network meta-analysis techniques to a new area.
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Affiliation(s)
- Martin Taylor-Rowan
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland.
| | - Sara Nafisi
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland
| | - Amit Patel
- Department of Health Science, University of Leicester, Leicester, England
| | - Jennifer K Burton
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland
| | - Terry J Quinn
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland
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Martinez-Miller EE, Robinson WR, Avery CL, Yang YC, Haan MN, Prather AA, Aiello AE. Longitudinal Associations of US Acculturation With Cognitive Performance, Cognitive Impairment, and Dementia. Am J Epidemiol 2020; 189:1292-1305. [PMID: 32440686 DOI: 10.1093/aje/kwaa088] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 05/08/2020] [Accepted: 05/13/2020] [Indexed: 12/17/2022] Open
Abstract
US Latinos, a growing, aging population, are disproportionately burdened by cognitive decline and dementia. Identification of modifiable risk factors is needed for interventions aimed at reducing risk. Broad sociocultural context may illuminate complex etiology among culturally diverse Latinos. Among 1,418 older (≥60 years), low-socioeconomic position (SEP) Latinos (predominantly of Mexican descent) in Sacramento, California, we examined whether US acculturation was associated with cognitive performance, cognitive decline, and dementia/ cognitive impairment without dementia over a 10-year period and whether education modified the associations (Sacramento Area Latino Study on Aging, 1998-2008). Analyses used linear mixed models, competing-risk regression, and inverse probability of censoring weights for attrition. Participants with high US acculturation had better cognitive performance (0.21 fewer cognitive errors at grand-mean-centered age 70 years) than those with low acculturation after adjustment for sociodemographic factors, practice effects, and survey language. Results may have been driven by cultural language use rather than identity factors (e.g., ethnic identity, interactions). Rate of cognitive decline and risk of dementia/cognitive impairment without dementia did not differ by acculturation, regardless of education (β = 0.00 (standard error, 0.00) and hazard ratio = 0.81 (95% confidence interval: 0.49, 1.35), respectively). High US acculturation was associated with better cognitive performance among these older, low-SEP Latinos. Acculturation may benefit cognition when SEP is low. Future studies should incorporate extended longitudinal assessments among more diverse groups.
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Rafnsson SB, Orrell M, d'Orsi E, Hogervorst E, Steptoe A. Loneliness, Social Integration, and Incident Dementia Over 6 Years: Prospective Findings From the English Longitudinal Study of Ageing. J Gerontol B Psychol Sci Soc Sci 2020; 75:114-124. [PMID: 28658937 PMCID: PMC6909434 DOI: 10.1093/geronb/gbx087] [Citation(s) in RCA: 127] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 06/13/2017] [Indexed: 12/20/2022] Open
Abstract
Objectives Social relationships are important for the maintenance of cognitive function at older ages, with both objective features of social networks and perceived social connections (loneliness) being relevant. There is limited evidence about how different aspects of social experience predict diagnosed dementia. Methods The sample comprised 6,677 dementia-free individuals at baseline (2004) from the English Longitudinal Study of Ageing. Baseline information on loneliness, number of close relationships, marital status, and social isolation (contact with family and friends and participation in organizations) was analyzed in relation to incident dementia over an average 6.25 years using Cox regression, controlling for potential confounding factors. Results Two hundred twenty participants developed dementia during follow-up. In multivariable analyses, dementia risk was positively related to greater loneliness (hazard ratio 1.40, 95% confidence interval 1.09–1.80, p = .008), and inversely associated with number of close relationships (p < .001) and being married (p = .018). Sensitivity analyses testing for reverse causality and different criteria for diagnosing dementia confirmed the robustness of these findings. There was no association with social isolation. Discussion Dementia risk is associated with loneliness and having fewer close relationships in later life. The underlying mechanisms remain to be elucidated, but efforts to enhance older peoples’ relationship quality may be relevant to dementia risk.
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Affiliation(s)
| | - Martin Orrell
- Institute of Mental Health, University of Nottingham, UK
| | - Eleonora d'Orsi
- Department of Public Health, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Eef Hogervorst
- School of Sport, Exercise and Health Sciences, Loughborough University, UK
| | - Andrew Steptoe
- Department of Epidemiology and Public Health, University College London, UK
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Ma Y, Ajnakina O, Steptoe A, Cadar D. Higher risk of dementia in English older individuals who are overweight or obese. Int J Epidemiol 2020; 49:1353-1365. [PMID: 32575116 PMCID: PMC7660153 DOI: 10.1093/ije/dyaa099] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2020] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Several risk factors contribute to dementia, but the role of obesity remains unclear. This study investigated whether increased body weight or central obesity were associated with a higher risk of developing dementia in a representative sample of older English adults. METHODS We studied 6582 participants from the English Longitudinal Study of Ageing (ELSA) who were aged ≥50 years and were dementia-free at baseline, that being either wave 1 (2002-2003) for study members who started at wave 1, or at either wave 2 (2004-2005) or 4 (2008-2009) for those who began the study as refreshment samples. Body mass index (BMI) was measured at baseline and categorized into normal weight (18.5-24.9 kg/m2), overweight (25-29.9 kg/m2) and obese (≥30 kg/m2). Central obesity was defined as a waist circumference (WC) >88 cm for women and >102 cm for men. Cumulative incidence of dementia was ascertained based on physician-diagnosed dementia, an overall score >3.38 on the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) and Hospital Episodes Statistics (HES) data at every ELSA wave from baseline until wave 8 (2016-2017). Cox proportional hazards models were used to assess the association between baseline BMI levels or abdominal obesity in relation to dementia incidence during the mean follow-up period of 11 years. RESULTS From the overall sample, 6.9% (n = 453) of participants developed dementia during the follow-up period of maximum 15 years (2002-2017). Compared with participants with normal weight, those who were obese at baseline had an elevated risk of dementia incidence [hazard ratio (HR) = 1.34, 95% confidence interval (CI) 1.07-1.61] independent of sex, baseline age, apolipoprotein E-ε4 (APOE-ε4), education, physical activity, smoking and marital status. The relationship was slightly accentuated after additionally controlling for hypertension and diabetes (HR = 1.31, 95% CI 1.03-1.59). Women with central obesity had a 39% greater risk of dementia compared with non-central obese women (HR = 1.39, 95% CI 1.12-1.66). When compared with a normal BMI and WC group, the obese and high WC group had 28% (HR = 1.28, 95% CI 1.03-1.53) higher risk of dementia. CONCLUSIONS Our results suggest that having an increased body weight or abdominal obesity are associated with increased dementia incidence. These findings have significant implications for dementia prevention and overall public health.
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Affiliation(s)
- Yixuan Ma
- Department of Behavioural Science and Health, University College London, London, UK
| | - Olesya Ajnakina
- Department of Behavioural Science and Health, University College London, London, UK
- Department of Biostatistics & Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Andrew Steptoe
- Department of Behavioural Science and Health, University College London, London, UK
| | - Dorina Cadar
- Department of Behavioural Science and Health, University College London, London, UK
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Ajnakina O, Cadar D, Steptoe A. Interplay between Socioeconomic Markers and Polygenic Predisposition on Timing of Dementia Diagnosis. J Am Geriatr Soc 2020; 68:1529-1536. [PMID: 32187654 PMCID: PMC7363562 DOI: 10.1111/jgs.16406] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/08/2020] [Accepted: 02/14/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Identifying the interplay between socioeconomic markers (education and financial resources) and polygenetic predisposition influencing the time of dementia and the diagnosis of clinical Alzheimer's disease (AD) dementia is of central relevance for preventive strategies. DESIGN Prospective cohort design. SETTING The English Longitudinal Study of Aging is a household survey data set of a representative sample. PARTICIPANTS A total of 7,039 individuals aged 50 years and older participated in the study. Of these, 320 (4.6%) were diagnosed with dementia over the 10-year follow-up. MEASUREMENTS Polygenic score (PGS) for Alzheimer's disease (AD-PGS) was calculated using summary statistics from the International Genomics of Alzheimer's Project. An accelerated failure time survival model was used to investigate interactions between AD-PGS and socioeconomic markers on the timing of dementia and clinical AD dementia diagnosis. RESULTS A one standard deviation increase in AD-PGS was associated with an accelerated time to dementia diagnosis by 4.8 months. The presence of the apolipoprotein E gene (APOE-ε4) was associated with an earlier dementia onset by approximately 24.9 months, whereas intermediate and low levels of wealth were associated with an accelerated time to dementia diagnosis by 12.0 months and 18.7 months, respectively. A multiplicative interaction between AD-PGS and years of completed schooling in decelerating the time to clinical AD dementia by 3.0 months suggests educational attainment may serve as a protective mechanism against AD diagnosis among older people with a higher polygenic risk. Interaction between AD-PGS and lower wealth accelerated the time to clinical AD dementia diagnosis by 21.1 to 24.1 months. CONCLUSION Socioeconomic markers influence the time to dementia and clinical AD dementia diagnosis, particularly in those with a higher polygenic predisposition. J Am Geriatr Soc 68:1529-1536, 2020.
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Affiliation(s)
- Olesya Ajnakina
- Department of Behavioural Science and HealthInstitute of Epidemiology and Health Care, University College LondonLondonUK
- Department of Biostatistics & Health InformaticsInstitute of Psychiatry, Psychology and Neuroscience, Kingʼs College LondonLondonUK
| | - Dorina Cadar
- Department of Behavioural Science and HealthInstitute of Epidemiology and Health Care, University College LondonLondonUK
| | - Andrew Steptoe
- Department of Behavioural Science and HealthInstitute of Epidemiology and Health Care, University College LondonLondonUK
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Fowler NR, Head KJ, Perkins AJ, Gao S, Callahan CM, Bakas T, Suarez SD, Boustani MA. Examining the benefits and harms of Alzheimer's disease screening for family members of older adults: study protocol for a randomized controlled trial. Trials 2020; 21:202. [PMID: 32075686 PMCID: PMC7031904 DOI: 10.1186/s13063-019-4029-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 12/23/2019] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Multiple national expert panels have identified early detection of Alzheimer's disease and related dementias (ADRD) as a national priority. However, the United States Preventive Services Task Force (USPSTF) does not currently support screening for ADRD in primary care given that the risks and benefits are unknown. The USPSTF stresses the need for research examining the impact of ADRD screening on family caregiver outcomes. METHODS The Caregiver Outcomes of Alzheimer's Disease Screening (COADS) is a randomized controlled trial that will examine the potential benefits or harms of ADRD screening on family caregivers. It will also compare the effectiveness of two strategies for diagnostic evaluation and management after ADRD screening. COADS will enroll 1800 dyads who will be randomized into three groups (n = 600/group): the 'Screening Only' group will receive ADRD screening at baseline and disclosure of the screening results, with positive-screen participants receiving a list of local resources for diagnostic follow-up; the 'Screening Plus' group will receive ADRD screening at baseline coupled with disclosure of the screening results, with positive-screen participants referred to a dementia collaborative care program for diagnostic evaluation and potential care; and the control group will receive no screening. The COADS trial will measure the quality of life of the family member (the primary outcome) and family member mood, anxiety, preparedness and self-efficacy (the secondary outcomes) at baseline and at 6, 12, 18 and 24 months. Additionally, the trial will examine the congruence of depressive and anxiety symptoms between older adults and family members at 6, 12, 18 and 24 months and compare the effectiveness of two strategies for diagnostic evaluation and management after ADRD screening between the two groups randomized to screening (Screening Only versus Screening Plus). DISCUSSION We hypothesize that caregivers in the screening arms will express higher levels of health-related quality of life, lower depressive and anxiety symptoms, and better preparation for caregiving with higher self-efficacy at 24 months. Results from this study will directly inform the National Plan to Address Alzheimer's Disease, the USPSTF and other organizations regarding ADRD screening and early detection policies. TRIAL REGISTRATION ClinicalTrials.gov, NCT03300180. Registered on 3 October.
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Affiliation(s)
- Nicole R. Fowler
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202 USA
- Indiana University Center for Aging Research, Indianapolis, IN 46202 USA
- Regenstrief Institute, Inc., Indianapolis, IN 46202 USA
- Center for Health Innovation and Implementation Science, Indiana Clinical and Translational Science Institute, Indianapolis, IN 46202 USA
| | - Katharine J. Head
- Department of Communication Studies, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202 USA
| | - Anthony J. Perkins
- Department of Biostatistics, Indiana University School of Medicine & Richard M. Fairbanks School of Public Health, Indianapolis, IN 46202 USA
| | - Sujuan Gao
- Department of Biostatistics, Indiana University School of Medicine & Richard M. Fairbanks School of Public Health, Indianapolis, IN 46202 USA
| | - Christopher M. Callahan
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202 USA
- Indiana University Center for Aging Research, Indianapolis, IN 46202 USA
- Regenstrief Institute, Inc., Indianapolis, IN 46202 USA
- Eskenazi Health, Indianapolis, IN 46202 USA
| | - Tamilyn Bakas
- College of Nursing, University of Cincinnati, Cincinnati, OH 45219 USA
| | - Shelley D. Suarez
- Indiana University Center for Aging Research, Indianapolis, IN 46202 USA
- Regenstrief Institute, Inc., Indianapolis, IN 46202 USA
| | - Malaz A. Boustani
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202 USA
- Indiana University Center for Aging Research, Indianapolis, IN 46202 USA
- Regenstrief Institute, Inc., Indianapolis, IN 46202 USA
- Center for Health Innovation and Implementation Science, Indiana Clinical and Translational Science Institute, Indianapolis, IN 46202 USA
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Fancourt D, Steptoe A, Cadar D. Community engagement and dementia risk: time-to-event analyses from a national cohort study. J Epidemiol Community Health 2020; 74:71-77. [PMID: 31662344 PMCID: PMC6929705 DOI: 10.1136/jech-2019-213029] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/11/2019] [Accepted: 10/14/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND There is increasing interest in the potential health benefits of referring older adults to engage in community leisure activities ('social prescribing') to help promote healthy cognitive ageing. However, it remains unclear whether beneficial effects of community engagement are independent of the well-known protective effects of broader structural, functional and subjective social factors. METHODS We analysed data from 9550 adults aged 50+ from the English Longitudinal Study of Ageing, with baseline from 2004 to 2005. We assessed associations between different types of community engagement and dementia incidence over a 12-year period. Specifically, we used Cox proportional hazards models, competing risk regressions models, and modified Fine and Gray subdistribution hazards models while controlling for all identified demographic, health-related, and social covariates. RESULTS Community cultural engagement (eg, visiting museums, galleries, the theatre) was associated with a lower hazard of developing dementia in older age independent of demographic, health-related and a broad range of social factors, using all three statistical approaches (fully adjusted Cox models: HR 0.58, 95% CI 0.41 to 0.80). Community group engagement (eg, attending clubs or societies) was only associated with dementia prior to adjustment for social factors. Results were robust to sensitivity analyses considering reverse causality, over-adjustment and baseline cognitive function. CONCLUSION It is not just social factors that are associated with reduced risk of dementia onset, but community engagement may also be protective, particularly when relating to cultural activities. These findings are of relevance when considering the current interest in social prescribing to support healthy ageing.
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Affiliation(s)
- Daisy Fancourt
- Department of Behavioural Science and Health, University College London Research Department of Epidemiology and Public Health, London, UK
| | - Andrew Steptoe
- Department of Behavioural Science and Health, University College London Research Department of Epidemiology and Public Health, London, UK
| | - Dorina Cadar
- Department of Behavioural Science and Health, University College London Research Department of Epidemiology and Public Health, London, UK
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28
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Guidet B, de Lange DW, Boumendil A, Leaver S, Watson X, Boulanger C, Szczeklik W, Artigas A, Morandi A, Andersen F, Zafeiridis T, Jung C, Moreno R, Walther S, Oeyen S, Schefold JC, Cecconi M, Marsh B, Joannidis M, Nalapko Y, Elhadi M, Fjølner J, Flaatten H. The contribution of frailty, cognition, activity of daily life and comorbidities on outcome in acutely admitted patients over 80 years in European ICUs: the VIP2 study. Intensive Care Med 2019; 46:57-69. [PMID: 31784798 PMCID: PMC7223711 DOI: 10.1007/s00134-019-05853-1] [Citation(s) in RCA: 189] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 11/01/2019] [Indexed: 12/21/2022]
Abstract
Purpose Premorbid conditions affect prognosis of acutely-ill aged patients. Several lines of evidence suggest geriatric syndromes need to be assessed but little is known on their relative effect on the 30-day survival after ICU admission. The primary aim of this study was to describe the prevalence of frailty, cognition decline and activity of daily life in addition to the presence of comorbidity and polypharmacy and to assess their influence on 30-day survival. Methods Prospective cohort study with 242 ICUs from 22 countries. Patients 80 years or above acutely admitted over a six months period to an ICU between May 2018 and May 2019 were included. In addition to common patients’ characteristics and disease severity, we collected information on specific geriatric syndromes as potential predictive factors for 30-day survival, frailty (Clinical Frailty scale) with a CFS > 4 defining frail patients, cognitive impairment (informant questionnaire on cognitive decline in the elderly (IQCODE) with IQCODE ≥ 3.5 defining cognitive decline, and disability (measured the activity of daily life with the Katz index) with ADL ≤ 4 defining disability. A Principal Component Analysis to identify co-linearity between geriatric syndromes was performed and from this a multivariable model was built with all geriatric information or only one: CFS, IQCODE or ADL. Akaike’s information criterion across imputations was used to evaluate the goodness of fit of our models. Results We included 3920 patients with a median age of 84 years (IQR: 81–87), 53.3% males). 80% received at least one organ support. The median ICU length of stay was 3.88 days (IQR: 1.83–8). The ICU and 30-day survival were 72.5% and 61.2% respectively. The geriatric conditions were median (IQR): CFS: 4 (3–6); IQCODE: 3.19 (3–3.69); ADL: 6 (4–6); Comorbidity and Polypharmacy score (CPS): 10 (7–14). CFS, ADL and IQCODE were closely correlated. The multivariable analysis identified predictors of 1-month mortality (HR; 95% CI): Age (per 1 year increase): 1.02 (1.–1.03, p = 0.01), ICU admission diagnosis, sequential organ failure assessment score (SOFA) (per point): 1.15 (1.14–1.17, p < 0.0001) and CFS (per point): 1.1 (1.05–1.15, p < 0.001). CFS remained an independent factor after inclusion of life-sustaining treatment limitation in the model. Conclusion We confirm that frailty assessment using the CFS is able to predict short-term mortality in elderly patients admitted to ICU. Other geriatric syndromes do not add improvement to the prediction model. Since CFS is easy to measure, it should be routinely collected for all elderly ICU patients in particular in connection to advance care plans, and should be used in decision making. Electronic supplementary material The online version of this article (10.1007/s00134-019-05853-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Bertrand Guidet
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Saint Antoine Hospital, AP-HP, Hôpital Saint-Antoine, service de réanimation, F75012, Paris, France.
| | - Dylan W de Lange
- Department of Intensive Care Medicine, University Medical Center, University Utrecht, Utrecht, The Netherlands
| | - Ariane Boumendil
- AP-HP, Hôpital Saint-Antoine, service de réanimation, F75012, Paris, France
| | - Susannah Leaver
- Research Lead Critical Care Directorate St George's Hospital, London, UK
| | | | - Carol Boulanger
- Chair NAHP Section ESICM, Intensive Care Unit, Royal Devon & Exeter NHS Foundation Trust, Exeter, UK
| | - Wojciech Szczeklik
- Intensive Care and Perioperative Medicine Division, Jagiellonian University Medical College, Kraków, Poland
| | - Antonio Artigas
- Department of Intensive Care Medicine, CIBER Enfermedades Respiratorias, Sabadell and Critical Care Department, Corporacion Sanitaria Universitaria Parc Tauli, Autonomous University of Barcelona, Sagrado Corazon-General de Cataluña University Hospitals, Quiron Salud, Barcelona, Spain
| | - Alessandro Morandi
- Department of Rehabilitation Hospital Ancelle di Cremona Italy, Geriatric Research Group, Brescia, Italy
| | - Finn Andersen
- Department of Anaesthesia and Intensive Care, NTNU, Dep of Circulation and Medical Imaging, Ålesund Hospital, Trondheim, Ålesund, Norway
| | | | - Christian Jung
- Division of Cardiology, Pulmonology and Vascular Medicine, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Rui Moreno
- Faculdade de Ciências Médicas de Lisboa (Nova Médical School), Unidade de Cuidados Intensivos Neurocríticos e Trauma. Hospital de São José, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - Sten Walther
- Linkoping University Hospital, Linkoping, Sweden
| | - Sandra Oeyen
- Department of Intensive Care 1K12IC Ghent University Hospital, Ghent, Belgium
| | - Joerg C Schefold
- Department of Intensive Care Medicine, Inselspital, Universitätsspital, University of Bern, Bern, Switzerland
| | - Maurizio Cecconi
- Department of Anesthesia and Intensive Care Medicine, Humanitas Clinical and Research Center - IRCCS, Via Alessandro Manzoni 56, 20089, Rozzano, MI, Italy.,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Rozzano, MI, Italy
| | - Brian Marsh
- Mater Misericordiae University Hospital, Dublin, Ireland
| | - Michael Joannidis
- Division of Intensive Care and Emergency Medicine, Department of Internal Medicine, Medical University Innsbruck, Innsbruck, Austria
| | - Yuriy Nalapko
- European Wellness International, ICU, Luhansk, Ukraine
| | | | - Jesper Fjølner
- Department of Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Hans Flaatten
- Dep. of Clinical Medicine, University of Bergen, Bergen, Norway.,Department of Anaesthesia and Intensive Care, Haukeland University Hospital, Bergen, Norway
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Hale K, Østbye T, Perera B, Bradley R, Maselko J. A Novel Adaptation of the HOME Inventory for Elders: The Importance of the Home Environment Across the Life Course. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E2826. [PMID: 31398802 PMCID: PMC6719999 DOI: 10.3390/ijerph16162826] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 07/27/2019] [Accepted: 07/28/2019] [Indexed: 12/14/2022]
Abstract
The context in which dependents, regardless of age, receive care affects their health. This study adapted the Home Observation for Measurement of the Environment (HOME) Inventory, originally designed for child development research, to assess the quality of stimulation and support available to elders in their habitual households in Sri Lanka. Whether the adapted domains correlated with indicators of health and well-being in ways consistent with the child development literature was then examined. Through mixed-methods research based on 248 household surveys, four focus groups, and 15 interviews, three domains emerged: Physical Environment, Variety of Stimulation, and Emotional and Verbal Responsiveness. Regression modeling revealed that a higher quality physical home environment correlated with two measures of cognitive function after adjusting for covariates, but no consistent association with two psychological well-being scales. In contrast, higher Variety of Stimulation scores correlated with better cognitive function and lower psychological distress. There was no consistent correlation between Responsiveness and selected health outcomes. Qualitative data indicate that elders are active household contributors who strive to achieve harmonious relations with coresident kin. These findings reveal notable synergies between early and late life efforts to improve cognitive and psychological health, and highlight household considerations for future healthy aging research.
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Affiliation(s)
- Kathryn Hale
- Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
| | - Truls Østbye
- Department of Family Medicine and Community Health, Duke University School of Medicine, Durham, NC 27710, USA
- Center for Aging Research and Education, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Bilesha Perera
- Department of Community Medicine, Faculty of Medicine, University of Ruhuna, Galle 80000, Sri Lanka
| | - Robert Bradley
- Department of Psychology, Arizona State University, Tempe, AZ 85287, USA
| | - Joanna Maselko
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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Creese B, Brooker H, Ismail Z, Wesnes KA, Hampshire A, Khan Z, Megalogeni M, Corbett A, Aarsland D, Ballard C. Mild Behavioral Impairment as a Marker of Cognitive Decline in Cognitively Normal Older Adults. Am J Geriatr Psychiatry 2019; 27:823-834. [PMID: 30902566 DOI: 10.1016/j.jagp.2019.01.215] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 01/30/2019] [Accepted: 01/30/2019] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Mild behavioral impairment (MBI) is a neurobehavioral syndrome characterized by later life emergent neuropsychiatric symptoms (NPS) that represent an at-risk state for incident cognitive decline and dementia in people with mild cognitive impairment (MCI). We undertook a study to determine whether MBI was associated with progressive changes in neuropsychological performance in people without significant cognitive impairment. METHODS A total of 9,931 older adults enrolled in the PROTECT study who did not have MCI or dementia undertook a comprehensive neuropsychological battery measuring attention, reasoning, executive function, and working memory at baseline and 1 year. MBI was ascertained using self-administration of the Mild Behavioral Impairment Checklist at 1 year, and participants were grouped according to MBI status: No Symptoms, Intermediate NPS and MBI. All assessments were completed online, and data analyzed using mixed-effects model repeated measures analysis of covariance. RESULTS A total of 949 (10%) people had MBI. These individuals had significantly worse cognitive performance at baseline and significantly greater decline over 1 year in the four composite cognitive scores measuring attentional intensity (F [2,8578] = 3.97; p = 0.019), sustained attention (F [2,8578] = 18.63; p <0.0001), attentional fluctuation (F [2,8578] = 10.13; p <0.0001) and working memory (F [2,9895] = 13.1; p <0.0001). CONCLUSION Our novel findings show that MBI is associated with faster decline in attention and working memory in this cognitively normal sample. MBI may be an earlier marker of neurodegenerative disease than MCI, captured at the stage of subjective cognitive decline or before, raising the possibility that MBI represents a novel target for dementia clinical trials or prevention strategies.
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Affiliation(s)
- Byron Creese
- University of Exeter Medical School (BC, HB, KAW, AC, CB), University of Exeter, Exeter, UK.
| | - Helen Brooker
- University of Exeter Medical School (BC, HB, KAW, AC, CB), University of Exeter, Exeter, UK
| | - Zahinoor Ismail
- Departments of Psychiatry, Clinical Neurosciences, and Community Health Sciences (ZI), Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Keith A Wesnes
- University of Exeter Medical School (BC, HB, KAW, AC, CB), University of Exeter, Exeter, UK; Wesnes Cognition Ltd. (KAW), Streatley on Thames, UK; Northumbria University (KAW), Newcastle, UK; Swinburne University (KAW), Melbourne; Newcastle University (KAW), Newcastle, UK
| | | | | | | | - Anne Corbett
- University of Exeter Medical School (BC, HB, KAW, AC, CB), University of Exeter, Exeter, UK
| | - Dag Aarsland
- King's College London (ZK, MM, DA), London; Stavanger University Hospital (DA), Stavanger, Norway
| | - Clive Ballard
- University of Exeter Medical School (BC, HB, KAW, AC, CB), University of Exeter, Exeter, UK
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Hackett RA, Steptoe A, Cadar D, Fancourt D. Social engagement before and after dementia diagnosis in the English Longitudinal Study of Ageing. PLoS One 2019; 14:e0220195. [PMID: 31369590 PMCID: PMC6675105 DOI: 10.1371/journal.pone.0220195] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 07/10/2019] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Social engagement protects against dementia onset. Less is known about patterns of social engagement around the time of dementia diagnosis. We investigated face-to-face and telephone contact at three times (pre-diagnosis, at report of diagnosis, 2 years post-diagnosis) in individuals who developed dementia and a comparison group. METHODS Social engagement was assessed at waves 2-7 of the English Longitudinal Study of Ageing in 4171 individuals aged 50 and older. Dementia was ascertained by either self-reported physician diagnosis or through an informant evaluation of a participant's functional and cognitive performance compared with a few years earlier. Generalized estimating equations were used to examine differences by group, time, and group-by-time interactions. RESULTS The dementia group reported less face-to-face (p < 0.001) and telephone contact (p < 0.001) than the dementia-free group pre-diagnosis. The dementia group experienced greater reductions in social engagement leading up to dementia diagnosis and in the 2 years following diagnosis (p's < 0.001). CONCLUSION Given that social engagement reduces dementia risk and supports the lived experience of people with dementia, it is important to find ways of promoting social interaction in older adults.
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Affiliation(s)
- Ruth A. Hackett
- Department of Behavioural Science and Health, University College London, London, United Kingdom
| | - Andrew Steptoe
- Department of Behavioural Science and Health, University College London, London, United Kingdom
| | - Dorina Cadar
- Department of Behavioural Science and Health, University College London, London, United Kingdom
| | - Daisy Fancourt
- Department of Behavioural Science and Health, University College London, London, United Kingdom
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Yang H, Bath PA. The Use of Data Mining Methods for the Prediction of Dementia: Evidence From the English Longitudinal Study of Aging. IEEE J Biomed Health Inform 2019; 24:345-353. [PMID: 31180874 DOI: 10.1109/jbhi.2019.2921418] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Dementia in older age is a major health concern with the increase in the aging population. Preventive measures to prevent or delay dementia symptoms are of utmost importance. In this study, a large and wide variety of factors from multiple domains were investigated using a large nationally representative sample of older people from the English Longitudinal Study of Ageing. Seven machine learning algorithms were implemented to build predictive models for performance comparison. A simple model ensemble approach was used to combine the prediction results of individual base models to further improve predictive power. A series of important factors in each domain area were identified. The findings from this study provide new evidence on factors that are associated with the dementia in later life. This information will help our understanding of potential risk factors for dementia and identify warning signs of the early stages of dementia. Longitudinal research is required to establish which factors may be causative and which factors may be a consequence of dementia.
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Kristoffersen MH, Dybvik E, Steihaug OM, Bartz-Johannesen CA, Martinsen MI, Ranhoff AH, Engesæter LB, Gjertsen JE. Validation of orthopaedic surgeons' assessment of cognitive function in patients with acute hip fracture. BMC Musculoskelet Disord 2019; 20:268. [PMID: 31153373 PMCID: PMC6545206 DOI: 10.1186/s12891-019-2633-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 05/16/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND About one fourth of patients with hip fracture have cognitive impairment. These patients are at higher risk of surgical and medical complications and are often excluded from participating in clinical research. The aim of the present study was to investigate orthopaedic surgeons' ability to determine the cognitive status of patients with acute hip fracture and to compare the treatment given to patients with and without cognitive impairment. METHODS The cognitive function of 1474 hip fracture patients reported by the orthopaedic surgeons to the nationwide Norwegian Hip Fracture Register was compared with data registered in quality databases in two hospitals with orthogeriatric service on the same patients. Cognitive function registered in the quality databases was determined either by the short form of the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) or by pre-fracture diagnosis of dementia. The information registered in the quality databases was defined as the reference standard. Cognitive function in the Norwegian Hip Fracture Register was reported as: Chronic cognitive impairment? "Yes", "Uncertain" or "No" by the orthopaedic surgeons. Sensitivity, specificity, negative and positive predictive values for chronic cognitive impairment reported to the Norwegian Hip Fracture Register by the orthopaedic surgeons was calculated. Baseline data and treatment of hip fractures in patients with and without cognitive impairment in the Norwegian Hip Fracture Register were compared. RESULTS Orthopaedic surgeons reported chronic cognitive impairment in 31% of the patients. Using documented dementia or IQCODE > 4.0 as the reference, this assessment of cognitive impairment by the orthopaedic surgeons had a sensitivity of 69%, a specificity of 90%, a positive predictive value of 78%, and a negative predictive value of 84% compared to information registered in the two hospital quality databases. There were no differences in type of hip fracture or type of surgical treatment by cognitive function. CONCLUSION The treatment of hip fractures was similar in patients with chronic cognitive impairment and cognitively well-functioning patients. The surgeons had an acceptable ability to identify and report chronic cognitive impairment in the peri-operative period, indicating that the Norwegian Hip Fracture Register is a valuable resource for future registry-based research also on hip fracture patients with chronic cognitive impairment.
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Affiliation(s)
- Målfrid Holen Kristoffersen
- Norwegian Hip Fracture Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Jonas Lies vei 65, N 5021, Bergen, Norway.
- Department of Clinical Medicine, Faculty of Medicine, University of Bergen, Haukelandsveien 28, N 5009, Bergen, Norway.
| | - Eva Dybvik
- Norwegian Hip Fracture Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Jonas Lies vei 65, N 5021, Bergen, Norway
| | | | | | | | - Anette Hylen Ranhoff
- Diakonhjemmet Hospital, Postboks 23 Vindern, N 0319, Oslo, Norway
- Department of Clinical Sciences, Faculty of Medicine, University of Bergen, Haukelandsveien 28, N 5009, Bergen, Norway
| | - Lars Birger Engesæter
- Norwegian Hip Fracture Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Jonas Lies vei 65, N 5021, Bergen, Norway
- Department of Clinical Medicine, Faculty of Medicine, University of Bergen, Haukelandsveien 28, N 5009, Bergen, Norway
| | - Jan-Erik Gjertsen
- Norwegian Hip Fracture Register, Department of Orthopaedic Surgery, Haukeland University Hospital, Jonas Lies vei 65, N 5021, Bergen, Norway
- Department of Clinical Medicine, Faculty of Medicine, University of Bergen, Haukelandsveien 28, N 5009, Bergen, Norway
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Rohde D, Gaynor E, Large M, Conway O, Bennett K, Williams DJ, Callaly E, Dolan E, Hickey A. Stroke survivor cognitive decline and psychological wellbeing of family caregivers five years post-stroke: a cross-sectional analysis. Top Stroke Rehabil 2019; 26:180-186. [PMID: 30907273 DOI: 10.1080/10749357.2019.1590972] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Family members frequently provide long-term care for stroke survivors, which can lead to psychological strain, particularly in the presence of cognitive decline. OBJECTIVES To profile anxious and depressive symptoms of family caregivers at 5 years post-stroke, and to explore associations with stroke survivor cognitive decline. METHODS As part of a 5-year follow-up of the Action on Secondary Prevention Interventions and Rehabilitation in Stroke (ASPIRE-S) cohort of stroke survivors, family members completed a self-report questionnaire. Symptoms of anxiety and depression were assessed using the HADS-A and CES-D. Cognitive decline in stroke survivors was assessed from the caregiver's perspective using the IQCODE, with cognitive performance assessed by the MoCA. Data were analyzed using logistic regression models. RESULTS 78 family members participated; 25.5% exhibited depressive symptoms, 19.4% had symptoms of anxiety. Eleven stroke survivors (16.7%) had evidence of cognitive decline according to both the IQCODE and MoCA. Family members of stroke survivors with cognitive decline were significantly more likely to report symptoms of depression [age-adjusted OR (95% CI): 5.94 (1.14, 30.89)] or anxiety [age-adjusted OR (95% CI): 5.64 (1.24, 25.54)] than family members of stroke survivors without cognitive decline. CONCLUSIONS One-fifth of family caregivers exhibited symptoms of anxiety and one-quarter symptoms of depression at 5 years post-stroke. Stroke survivor cognitive decline was significantly associated with both depressive and anxious symptoms of family caregivers. Family members play a key role in the care and rehabilitation of stroke patients; enhancing their psychological wellbeing and identifying unmet needs are essential to improving outcomes for stroke survivors and families.
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Affiliation(s)
- Daniela Rohde
- a Population Health Sciences , Royal College of Surgeons in Ireland , Dublin , Ireland
| | - Eva Gaynor
- b Department of Medicine , Royal College of Surgeons in Ireland , Dublin , Ireland
| | - Margaret Large
- c Clinical Research Centre , Royal College of Surgeons in Ireland, Beaumont Hospital , Dublin , Ireland
| | - Orla Conway
- a Population Health Sciences , Royal College of Surgeons in Ireland , Dublin , Ireland
| | - Kathleen Bennett
- a Population Health Sciences , Royal College of Surgeons in Ireland , Dublin , Ireland
| | - David J Williams
- d Geriatric and Stroke Medicine , Royal College of Surgeons in Ireland, Beaumont Hospital , Dublin , Ireland
| | - Elizabeth Callaly
- e Geriatric Medicine , Mater Misercordiae University Hospital , Dublin , Ireland
| | - Eamon Dolan
- f Geriatric Medicine , Connolly Hospital , Dublin , Ireland
| | - Anne Hickey
- a Population Health Sciences , Royal College of Surgeons in Ireland , Dublin , Ireland
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Hendry K, Green C, McShane R, Noel‐Storr AH, Stott DJ, Anwer S, Sutton AJ, Burton JK, Quinn TJ. AD-8 for detection of dementia across a variety of healthcare settings. Cochrane Database Syst Rev 2019; 3:CD011121. [PMID: 30828783 PMCID: PMC6398085 DOI: 10.1002/14651858.cd011121.pub2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Dementia assessment often involves initial screening, using a brief tool, followed by more detailed assessment where required. The AD-8 is a short questionnaire, completed by a suitable 'informant' who knows the person well. AD-8 is designed to assess change in functional performance secondary to cognitive change. OBJECTIVES To determine the diagnostic accuracy of the informant-based AD-8 questionnaire, in detection of all-cause (undifferentiated) dementia in adults. Where data were available, we described the following: the diagnostic accuracy of the AD-8 at various predefined threshold scores; the diagnostic accuracy of the AD-8 for each healthcare setting and the effects of heterogeneity on the reported diagnostic accuracy of the AD-8. SEARCH METHODS We searched the following sources on 27 May 2014, with an update to 7 June 2018: ALOIS (Cochrane Dementia and Cognitive Improvement Group), MEDLINE (Ovid SP), Embase (Ovid SP), PsycINFO (Ovid SP), BIOSIS Previews (Thomson Reuters Web of Science), Web of Science Core Collection (includes Conference Proceedings Citation Index) (Thomson Reuters Web of Science), CINAHL (EBSCOhost) and LILACS (BIREME). We checked reference lists of relevant studies and reviews, used searches of known relevant studies in PubMed to track related articles, and contacted research groups conducting work on the AD-8 to try to find additional studies. We developed a sensitive search strategy and used standardised database subject headings as appropriate. Foreign language publications were translated. SELECTION CRITERIA We selected those studies which included the AD-8 to assess for the presence of dementia and where dementia diagnosis was confirmed with clinical assessment. We only included those studies where the AD-8 was used as an informant assessment. We made no exclusions in relation to healthcare setting, language of AD-8 or the AD-8 score used to define a 'test positive' case. DATA COLLECTION AND ANALYSIS We screened all titles generated by electronic database searches, and reviewed abstracts of potentially relevant studies. Two independent assessors checked full papers for eligibility and extracted data. We extracted data into two-by-two tables to allow calculation of accuracy metrics for individual studies. We then created summary estimates of sensitivity, specificity and likelihood ratios using the bivariate approach and plotting results in receiver operating characteristic (ROC) space. We determined quality assessment (risk of bias and applicability) using the QUADAS-2 tool. MAIN RESULTS From 36 papers describing AD-8 test accuracy, we included 10 papers. We utilised data from nine papers with 4045 individuals, 1107 of whom (27%) had a clinical diagnosis of dementia. Pooled analysis of seven studies, using an AD-8 informant cut-off score of two, indicated that sensitivity was 0.92 (95% confidence interval (CI) 0.86 to 0.96); specificity was 0.64 (95% CI 0.39 to 0.82); the positive likelihood ratio was 2.53 (95% CI 1.38 to 4.64); and the negative likelihood ratio was 0.12 (95% CI 0.07 to 0.21). Pooled analysis of five studies, using an AD-8 informant cut-off score of three, indicated that sensitivity was 0.91 (95% CI 0.80 to 0.96); specificity was 0.76 (95% CI 0.57 to 0.89); the positive likelihood ratio was 3.86 (95% CI 2.03 to 7.34); and the negative likelihood ratio was 0.12 (95% CI 0.06 to 0.24).Four studies were conducted in community settings; four were in secondary care (one in the acute hospital); and one study was in primary care. The AD-8 has a higher relative sensitivity (1.11, 95% CI 1.02 to 1.21), but lower relative specificity (0.51, 95% CI 0.23 to 1.09) in secondary care compared to community care settings.There was heterogeneity across the included studies. Dementia prevalence rate varied from 12% to 90% of included participants. The tool was also used in various different languages. Among all the included studies there was evidence of risk of bias. Issues included the selection of participants, conduct of index test, and flow of assessment procedures. AUTHORS' CONCLUSIONS The high sensitivity of the AD-8 suggests it can be used to identify adults who may benefit from further specialist assessment and diagnosis, but is not a diagnostic test in itself. This pattern of high sensitivity and lower specificity is often suited to a screening test. Test accuracy varies by setting, however data in primary care and acute hospital settings are limited. This review identified significant heterogeneity and risk of bias, which may affect the validity of its summary findings.
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Affiliation(s)
- Kirsty Hendry
- University of GlasgowInstitute of Cardiovascular and Medical SciencesNew Lister BuildingGlasgow Royal InfirmaryGlasgowUKG4 OSF
| | - Claire Green
- University of GlasgowInstitute of Cardiovascular and Medical SciencesNew Lister BuildingGlasgow Royal InfirmaryGlasgowUKG4 OSF
| | - Rupert McShane
- University of OxfordRadcliffe Department of MedicineJohn Radcliffe HospitalLevel 4, Main Hospital, Room 4401COxfordOxfordshireUKOX3 9DU
| | - Anna H Noel‐Storr
- University of OxfordRadcliffe Department of MedicineJohn Radcliffe HospitalLevel 4, Main Hospital, Room 4401COxfordOxfordshireUKOX3 9DU
| | - David J Stott
- University of GlasgowInstitute of Cardiovascular and Medical SciencesNew Lister BuildingGlasgow Royal InfirmaryGlasgowUKG4 OSF
| | - Sumayya Anwer
- University of BristolPopulation Health Sciences, Bristol Medical SchoolCanynge Hall, 39 Whatley RoadBristolUKBS8 2PS
| | - Alex J Sutton
- University of LeicesterDepartment of Health Sciences2nd Floor (Room 214e),Adrian BuildingLeicesterUKLE1 7RH
| | - Jennifer K Burton
- University of GlasgowAcademic Geriatric Medicine, Institute of Cardiovascular and Medical SciencesNew Lister Building, Glasgow Royal InfirmaryGlasgowUKG4 0SF
| | - Terry J Quinn
- University of GlasgowInstitute of Cardiovascular and Medical SciencesNew Lister BuildingGlasgow Royal InfirmaryGlasgowUKG4 OSF
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Abstract
Objective: To review the research literature pertaining to post-stroke language recovery, and to discuss neurocognitive assessment in patients in the context of aphasia, time course of language recovery, factors associated with language recovery, and therapeutic techniques designed to facilitate language recovery. Method: Articles were identified through PubMed, MEDLINE, PsychINFO, and Google Scholar searches. Examples of utilized keywords include "post-stroke aphasia," "post-stroke language recovery," "post-stroke neurocognitive assessment," and "neuropsychology and aphasia." Results: Most language recovery occurs in the first few weeks following stroke, but residual recovery may occur for many years. Although initial aphasia severity is the single largest determinant of post-stroke language recovery, a number of other variables also contribute. Several techniques have been developed to aid in the recovery process including speech-language therapy and noninvasive brain stimulation, although the effectiveness of acute and subacute treatment remains unclear. Some degree of valid neurocognitive assessment is possible in patients with aphasia, and the information gained from such an evaluation can aid the rehabilitative process Conclusions: Significant recovery of language function is possible following a stroke, but prediction of level of recovery in an individual patient is difficult. Information about initial aphasia severity and the integrity of cognitive domains other than language can help guide the rehabilitation team, as well as manage expectations for recovery.
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Affiliation(s)
- Adam Gerstenecker
- a Department of Neurology , University of Alabama at Birmingham , Birmingham , AL, USA.,b Alzheimer's Disease Center , University of Alabama at Birmingham , Birmingham , AL, USA.,c Evelyn F. McKnight Brain Institute , University of Alabama at Birmingham , Birmingham , AL, USA
| | - Ronald M Lazar
- a Department of Neurology , University of Alabama at Birmingham , Birmingham , AL, USA.,c Evelyn F. McKnight Brain Institute , University of Alabama at Birmingham , Birmingham , AL, USA
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Deckers K, Cadar D, van Boxtel MP, Verhey FR, Steptoe A, Köhler S. Modifiable Risk Factors Explain Socioeconomic Inequalities in Dementia Risk: Evidence from a Population-Based Prospective Cohort Study. J Alzheimers Dis 2019; 71:549-557. [PMID: 31424404 PMCID: PMC6839472 DOI: 10.3233/jad-190541] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Differences in dementia risk across the gradient of socioeconomic status (SES) exist, but their determinants are not well understood. OBJECTIVE This study investigates whether health conditions and lifestyle-related risk factors explain the SES inequalities in dementia risk. METHODS 6,346 participants from the English Longitudinal Study of Ageing were followed up from 2008/2009 until 2014/2015. We used Cox regression adjusted for age, gender, wealth/education, and clustering at the household level to examine the association between SES markers (wealth, education) and time to dementia in a structural equation model including potential mediation or effect modification by a weighted compound score of twelve modifiable risk and protective factors for dementia ('LIfestyle for BRAin health' (LIBRA) score). RESULTS During a median follow-up of 6 years, 192 individuals (3.0%) developed dementia. LIBRA scores decreased with increasing wealth and higher educational level. A one-point increase in the LIBRA score was associated with a 13% increase in dementia risk (hazard ratio (HR) = 1.13, 95% confidence interval 1.07-1.19). Higher wealth was associated with a decreased dementia risk (HR = 0.58, 0.39-0.85). Mediation analysis showed that 52% of the risk difference between the highest and lowest wealth tertile was mediated by differences in LIBRA (indirect effect: HR = 0.75, 0.66-0.85). Education was not directly associated with dementia (HR = 1.05, 0.69-1.59), but was a distal risk factor for dementia by explaining differences in wealth and LIBRA scores (indirect effect high education: HR = 0.92, 0.88-0.95). CONCLUSION Socioeconomic differences in dementia risk can be partly explained by differences in modifiable health conditions and lifestyle factors.
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Affiliation(s)
- Kay Deckers
- Alzheimer Centrum Limburg, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Dorina Cadar
- Department of Behavioural Science and Health, University College London, London, UK
| | - Martin P.J. van Boxtel
- Alzheimer Centrum Limburg, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Frans R.J. Verhey
- Alzheimer Centrum Limburg, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Andrew Steptoe
- Department of Behavioural Science and Health, University College London, London, UK
- Department of Epidemiology and Public Health, University College London, London, UK
| | - Sebastian Köhler
- Alzheimer Centrum Limburg, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands
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38
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d’ Orsi E, Xavier AJ, Rafnsson SB, Steptoe A, Hogervorst E, Orrell M. Is use of the internet in midlife associated with lower dementia incidence? Results from the English Longitudinal Study of Ageing. Aging Ment Health 2018; 22:1525-1533. [PMID: 28795579 PMCID: PMC6127001 DOI: 10.1080/13607863.2017.1360840] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 07/24/2017] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Dementia is expected to affect one million individuals in the United Kingdom by 2025; its prodromal phase may start decades before its clinical onset. The aim of this study is to investigate whether use of internet from 50 years of age is associated with a lower incidence of dementia over a ten-year follow-up. METHODS We analysed data based on 8,238 dementia free (at baseline in 2002-2004) core participants from the English Longitudinal Study of Ageing. Information on baseline use of internet was obtained through questionnaires; dementia casesness was based on participant (or informant) reported physician diagnosed dementia or overall score on the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE). Cox proportional hazards regression analysis was used for examining the relationship between internet use and incident dementia. RESULTS There were 301 (5.01%) incident dementia cases during the follow-up. After full multivariable adjustment for potential confounding factors, baseline internet use was associated with a 40% reduction in dementia risk assessed between 2006-2012 (HR = 0.60 CI: 0.42-0.85; p < 0.05). CONCLUSION This study suggests that use of internet by individuals aged 50 years or older is associated with a reduced risk of dementia. Additional studies are needed to better understand the potential causal mechanisms underlying this association.
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Affiliation(s)
- Eleonora d’ Orsi
- Departamento de Saúde Pública, Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, Brazil ZIP CODE: 88040-900; Tel: +55 48 37219388;
| | - Andre Junqueira Xavier
- Universidade do Sul de Santa Catarina, Av Pedra Branca, 25 - Cidade Universitária, ZIP CODE: 88137-270, Palhoça, Brazil; Tel: +55(48)91647539;
| | - Snorri Bjorn Rafnsson
- Department of Epidemiology and Public Health, University College London, London, WC1E 6BT, UK. Tel: +44 (0)20 7679 2000;
| | - Andrew Steptoe
- Department of Epidemiology and Public Health, University College London, London, UK WC1E 6BT, UK. Tel: +44 (0)20 7679 2000;
| | - Eef Hogervorst
- Applied Cognitive Research NCSEM, Loughborough University, LE11 3TU UK, Tel:+44 (0)1509 223020;
| | - Martin Orrell
- Institute of Mental Health, Faculty of Medicine & Health Sciences, University of Nottingham, Nottingham, NG7 2UH, UK; Tel: +441159515151;
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Goudsmit M, van Campen J, Schilt T, Hinnen C, Franzen S, Schmand B. One Size Does Not Fit All: Comparative Diagnostic Accuracy of the Rowland Universal Dementia Assessment Scale and the Mini Mental State Examination in a Memory Clinic Population with Very Low Education. Dement Geriatr Cogn Dis Extra 2018; 8:290-305. [PMID: 30323830 PMCID: PMC6180264 DOI: 10.1159/000490174] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 05/17/2018] [Indexed: 11/19/2022] Open
Abstract
Background Diagnosing dementia in elderly immigrants is often difficult due to language and cultural barriers, low education, and illiteracy. We compared the diagnostic accuracy of the Rowland Universal Dementia Assessment Scale (RUDAS) to that of the Mini Mental State Examination (MMSE). Methods A total of 144 patients (42 with intact cognition, 44 with mild cognitive impairment [MCI], and 58 with dementia) were administered both instruments and were diagnosed by specialists blinded for MMSE and RUDAS results. Results Areas under the curve for discriminating intact cognition from MCI and dementia were comparable for RUDAS (0.81; 95% confidence interval 0.74–0.88) and MMSE (0.75; 95% confidence interval 0.69–0.85). Education and literacy were not correlated with the RUDAS but had a medium-large correlation with the MMSE (rho = 0.39). Conclusions The study provides additional evidence for the usefulness of the RUDAS in a highly illiterate, culturally diverse geriatric outpatient population.
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Affiliation(s)
- Miriam Goudsmit
- Department of Medical Psychology/Hospital Psychiatry, Medical Centre Slotervaart, Amsterdam, the Netherlands
| | - Jos van Campen
- Department of Geriatrics, Medical Centre Slotervaart, Amsterdam, the Netherlands
| | - Thelma Schilt
- Department of Medical Psychology/Hospital Psychiatry, Medical Centre Slotervaart, Amsterdam, the Netherlands.,Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands
| | - Chris Hinnen
- Department of Medical Psychology/Hospital Psychiatry, Medical Centre Slotervaart, Amsterdam, the Netherlands
| | - Sanne Franzen
- Department of Neurology, Erasmus MC - University Medical Center, Rotterdam, the Netherlands
| | - Ben Schmand
- Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands
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Cognitive Assessment Test: Validation of a Short Cognitive Test for the Detection of Mild Cognitive Disorder. Int J Alzheimers Dis 2018; 2018:3280621. [PMID: 30057805 PMCID: PMC6051079 DOI: 10.1155/2018/3280621] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 05/27/2018] [Accepted: 05/31/2018] [Indexed: 12/24/2022] Open
Abstract
Introduction Cognitive disorders are a clinical and research challenge; in particular, the mild cognitive disorder (MiCD) requires diagnostic suspicion and tools with adequate performance for its detection. The objective of this study was the validation of a short cognitive test (CATest) for the detection of MiCD in population of 50 years or more. Methods A diagnostic accuracy study was assembled and performed in a prospective cohort. A consecutive sample of 200 Colombian subjects who represented the whole spectrum of the condition of interest allowed us to reach the objective. Validity was determined by concurrent criteria. The cut points were determined by the ROC curves considering the best overall performance and accuracy of the test. Results CATest was validated to detection of MiCD at a cut-off point of 18. As a result, scores lower than 18 classified the participants as MiCD. At this cut-off point, CATest showed sensitivity of 84.3% (CI 76 to 90.16), specificity of 71.4% (CI 95% 61.8 to 79.43), positive predictive value of 75% ( 95% CI 66.79 to 82.42), and area under curve AUC 0.8518 (standard error SE 0.0265). Discussion CATest has an adequate performance as a short cognitive test for the detection of MiCD. Its performance is superior to MiniMental and similar to Montreal Cognitive test (MoCA) according to the data reported in the literature. The advantages over other tests are the evaluation of all cognitive domains, time of application, and easy interpretation of results. CATest is a free use alternative for MiCD detection.
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Cadar D, Lassale C, Davies H, Llewellyn DJ, Batty GD, Steptoe A. Individual and Area-Based Socioeconomic Factors Associated With Dementia Incidence in England: Evidence From a 12-Year Follow-up in the English Longitudinal Study of Ageing. JAMA Psychiatry 2018; 75:723-732. [PMID: 29799983 PMCID: PMC6145673 DOI: 10.1001/jamapsychiatry.2018.1012] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
IMPORTANCE Lower educational attainment is associated with a higher risk of dementia. However, less clear is the extent to which other socioeconomic markers contribute to dementia risk. OBJECTIVE To examine the relationship of education, wealth, and area-based deprivation with the incidence of dementia over the last decade in England and investigate differences between people born in different periods. DESIGN, SETTING, AND PARTICIPANTS Data from the English Longitudinal Study of Ageing, a prospective cohort study that is representative of the English population, were used to investigate the associations between markers of socioeconomic status (wealth quintiles and the index of multiple deprivation) and dementia incidence. To investigate outcomes associated with age cohorts, 2 independent groups were derived using a median split (born between 1902-1925 and 1926-1943). MAIN OUTCOMES AND MEASURES Dementia as determined by physician diagnosis and the Informant Questionnaire on Cognitive Decline in the Elderly. RESULTS A total of 6220 individuals aged 65 years and older enrolled in the study (median [interquartile range] age at baseline, 73.2 [68.1-78.3] years; 3410 [54.8%] female). Of these, 463 individuals (7.4%) had new cases of dementia ascertained in the 12 years between 2002-2003 and 2014-2015. In the cohort born between 1926 and 1943, the hazard of developing dementia was 1.68 times higher (hazard ratio [HR] = 1.68 [95% CI, 1.05-2.86]) for those in the lowest wealth quintile compared with those in the highest quintile, independent of education, index of multiple deprivation, and health indicators. Higher hazards were also observed for those in the second-highest quintile of index of multiple deprivation (HR = 1.62 [95% CI, 1.06-2.46]) compared with those in the lowest (least deprived) quintile. CONCLUSIONS AND RELEVANCE In an English nationally representative sample, the incidence of dementia appeared to be socioeconomically patterned primarily by the level of wealth. This association was somewhat stronger for participants born in later years.
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Affiliation(s)
- Dorina Cadar
- Department of Behavioural Science and Health,
University College London, London, United Kingdom
| | - Camille Lassale
- Department of Behavioural Science and Health,
University College London, London, United Kingdom,Department of Epidemiology and Public Health,
University College London, London, United Kingdom
| | - Hilary Davies
- School of Health Sciences, University of Surrey,
Guildford, United Kingdom
| | - David J. Llewellyn
- Medical School, University of Exeter, Devon, South
West England, United Kingdom
| | - G. David Batty
- Department of Epidemiology and Public Health,
University College London, London, United Kingdom
| | - Andrew Steptoe
- Department of Behavioural Science and Health,
University College London, London, United Kingdom,Department of Epidemiology and Public Health,
University College London, London, United Kingdom
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Ding Y, Niu J, Zhang Y, Liu W, Zhou Y, Wei C, Liu Y. Informant questionnaire on cognitive decline in the elderly (IQCODE) for assessing the severity of dementia in patients with Alzheimer's disease. BMC Geriatr 2018; 18:146. [PMID: 29914396 PMCID: PMC6006922 DOI: 10.1186/s12877-018-0837-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 06/13/2018] [Indexed: 12/25/2022] Open
Abstract
Background The Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) is widely used as a complementary screening tool for dementia. However, there are few studies concerning the efficacy of the IQCODE for assessing the severity of cognitive impairments in patients with Alzheimer’s disease (AD). We aimed to evaluate the efficacy of the IQCODE for assessing the severity of dementia in patients with AD. Methods According to the clinical dementia rating (CDR), 394 patients with AD were enrolled and classified into three groups: mild, moderate and severe groups. The IQCODE scores of each group were determined by interviewing the informants with the short version of the 16-item IQCODE. The correlations of the IQCODE score with the Mini-Mental State Examination (MMSE), the Mattis Dementia Rating Scale (DRS) and the Alzheimer’s Disease Assessment Scale-Cognitive Subscale (ADAS-Cog) were analysed. Statistical analyses were conducted to examine the differences in the IQCODE scores among the three groups. Results The validity coefficients of the IQCODE with the MMSE, DRS and ADAS-Cog were − 0.528, − 0.436, and 0.477, respectively. The sensitivity was 66.1%, and the specificity was 59.8% when using a cut-off score of 65 to discriminate between mild-moderate dementia. When 75 was used as the threshold between moderate-severe dementia, the sensitivity and the specificity were 73.9 and 67.7%, respectively. Conclusions The IQCODE is moderately effective for assessing the severity of cognitive impairment in patients with AD.
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Affiliation(s)
- Yunlong Ding
- Department of Neurology, JingJiang People's Hospital, No. 28, Zhongzhou Road, Jingjiang, CN 214500, Jiangsu, China
| | - Jiali Niu
- Department of Clinical Pharmacy, JingJiang People's Hospital, No. 28, Zhongzhou Road, Jingjiang, CN 214500, Jiangsu, China
| | - Yanrong Zhang
- Department of Neurology, JingJiang People's Hospital, No. 28, Zhongzhou Road, Jingjiang, CN 214500, Jiangsu, China
| | - Wenpeng Liu
- Department of Neurology, JingJiang People's Hospital, No. 28, Zhongzhou Road, Jingjiang, CN 214500, Jiangsu, China
| | - Yan Zhou
- Department of Neurology, Huashan Hospital at Fudan University, No. 12, Urumqi Road, Shanghai, 200040, CN, China
| | - Can Wei
- Department of Neurology, JingJiang People's Hospital, No. 28, Zhongzhou Road, Jingjiang, CN 214500, Jiangsu, China
| | - Yan Liu
- Department of Neurology, JingJiang People's Hospital, No. 28, Zhongzhou Road, Jingjiang, CN 214500, Jiangsu, China.
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Christie J. Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) for the Early Diagnosis of Dementia Across a Variety of Healthcare Settings. Issues Ment Health Nurs 2018; 39:445-446. [PMID: 29775136 DOI: 10.1080/01612840.2018.1472958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Janice Christie
- a Senior Lecturer/University of Manchester, Division of Nursing Midwifery & Social Work, Faculty of Biology, Medicine and Health , The University of Manchester , Oxford Road, Manchester , UK
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Hackett RA, Davies-Kershaw H, Cadar D, Orrell M, Steptoe A. Walking Speed, Cognitive Function, and Dementia Risk in the English Longitudinal Study of Ageing. J Am Geriatr Soc 2018; 66:1670-1675. [PMID: 29508385 PMCID: PMC6127007 DOI: 10.1111/jgs.15312] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Objectives To determine the relationships between walking speed, cognitive function, and the interaction between changes in these measures and dementia risk. Design Longitudinal observational study. Setting English Longitudinal Study of Ageing. Participants Individuals aged 60 and older (N=3,932). Measurements Walking speed and cognition were assessed at Waves 1 (2002–03) and 2 (2004–05) of the English Longitudinal Study of Ageing. New dementia cases were assessed from Wave 3 (2006–07) to Wave 7 (2014–15). The associations were modelled using Cox proportional hazards regression. Results Participants with faster baseline walking speeds were at lower risk of developing dementia (hazard ratio (HR)=0.36, 95% confidence interval (CI)=0.22–0.60). Those with a greater decline in walking speed from Wave 1 to 2 were at greater risk of developing dementia (HR=1.23, 95% CI=1.03–1.47). Participants with better baseline cognition (HR=0.42, 95% CI=0.34–0.54) were at lower risk of developing dementia. Those with a greater decline in cognition from Wave 1 to 2 were at greater risk of developing dementia (HR=1.78, 95% CI=1.53–2.06). Change in walking speed and change in cognition did not have an interactive effect on dementia risk (HR=1.01, 95% CI=0.88–1.17). Conclusion In this community‐dwelling sample of English adults, those with slower walking speeds and a greater decline in speed over time were at greater risk of developing dementia independent of changes in cognition. Further research is required to understand the mechanisms that may drive these associations. See related editorial by https://doi.org/https://doi.org/10.1111/jgs.15368.
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Affiliation(s)
- Ruth A Hackett
- Department of Behavioural Science and Health, University College London, London, United Kingdom
| | - Hilary Davies-Kershaw
- Department of Behavioural Science and Health, University College London, London, United Kingdom.,School of Health Sciences, University of Surrey, Guildford, United Kingdom
| | - Dorina Cadar
- Department of Behavioural Science and Health, University College London, London, United Kingdom
| | - Martin Orrell
- Institute of Mental Health, University of Nottingham, Nottingham, United Kingdom
| | - Andrew Steptoe
- Department of Behavioural Science and Health, University College London, London, United Kingdom
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45
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Khondoker M, Rafnsson SB, Morris S, Orrell M, Steptoe A. Positive and Negative Experiences of Social Support and Risk of Dementia in Later Life: An Investigation Using the English Longitudinal Study of Ageing. J Alzheimers Dis 2018; 58:99-108. [PMID: 28387667 PMCID: PMC5438469 DOI: 10.3233/jad-161160] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background: Having a network of close relationships may reduce the risk of developing dementia. However, social exchange theory suggests that social interaction entails both rewards and costs. The effects of quality of close social relationships in later life on the risk of developing dementia are not well understood. Objective: To investigate the effects of positive and negative experiences of social support within key relationships (spouse or partner, children, other immediate family, and friends) on the risk of developing dementia in later life. Methods: We analyzed 10-year follow up data (2003/4 to 2012/13) in a cohort of 10,055 dementia free (at baseline) core participants aged 50 years and over from the English Longitudinal Study of Ageing (ELSA). Incidence of dementia was identified from participant or informant reported physician diagnosed dementia or overall score of informant-completed IQCODE questionnaire. Effects of positive and negative experiences of social support measured at baseline on risk of developing dementia were investigated using proportional hazards regression accommodating interval censoring of time-to-dementia. Results: There were 340 (3.4%) incident dementia cases during the follow-up. Positive social support from children significantly reduced the risk of dementia (hazard ratio, HR = 0.83, p = 0.042, 95% CI: 0.69 to 0.99). Negative support from other immediate family (HR = 1.26, p = 0.011, CI: 1.05 to 1.50); combined negative scores from spouse and children (HR = 1.23, p = 0.046, CI: 1.004 to 1.51); spouse, children, and other family (HR = 1.27, p = 0.021, CI = 1.04 to 1.56); other family & friends (HR = 1.25, p = 0.033, CI: 1.02 to 1.55); and the overall negative scores (HR = 1.31, p = 0.019, CI: 1.05 to 1.64) all were significantly associated with increased risk of dementia. Conclusion: Positive social support from children is associated with reduced risk of developing dementia whereas experiences of negative social support from children and other immediate family increase the risk. Further research is needed to better understand the causal mechanisms that drive these associations.
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Affiliation(s)
- Mizanur Khondoker
- Norwich Medical School, University of East Anglia, Norwich, England, UK.,Department of Applied Health Research, University College London, London, UK
| | - Snorri Bjorn Rafnsson
- Department of Epidemiology and Public Health, University College London, London, UK.,Centre for Primary Health and Social Care, London Metropolitan University, London, UK
| | - Stephen Morris
- Department of Applied Health Research, University College London, London, UK
| | - Martin Orrell
- Institute of Mental Health, University of Nottingham, Nottingham, UK
| | - Andrew Steptoe
- Department of Epidemiology and Public Health, University College London, London, UK
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O’Sullivan D, Brady N, Manning E, O’Shea E, O’Grady S, O ‘Regan N, Timmons S. Validation of the 6-Item Cognitive Impairment Test and the 4AT test for combined delirium and dementia screening in older Emergency Department attendees. Age Ageing 2018; 47:61-68. [PMID: 28985260 PMCID: PMC5860384 DOI: 10.1093/ageing/afx149] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Indexed: 11/29/2022] Open
Abstract
Background screening for cognitive impairment in Emergency Department (ED) requires short, reliable tools. Objective to validate the 4AT and 6-Item Cognitive Impairment Test (6-CIT) for ED dementia and delirium screening. Design diagnostic accuracy study. Setting/subjects attendees aged ≥70 years in a tertiary care hospital’s ED. Methods trained researchers assessed participants using the Standardised Mini Mental State Examination, Delirium Rating Scale-Revised 98 and Informant Questionnaire on Cognitive Decline in the Elderly, informing ultimate expert diagnosis using Diagnostic and Statistical Manual of Mental Disorders (DSM-V) criteria for dementia and delirium (reference standards). Another researcher blindly screened each participant, within 3 h, using index tests 4AT and 6-CIT. Result of 419 participants (median age 77 years), 15.2% had delirium and 21.5% had dementia. For delirium detection, 4AT had positive predictive value (PPV) 0.68 (95% confidence intervals: 0.58–0.79) and negative predictive value (NPV) 0.99 (0.97–1.00). At a pre-specified 9/10 cut-off (9 is normal), 6-CIT had PPV 0.35 (0.27–0.44) and NPV 0.98 (0.95–0.99). Importantly, 52% of participants had no family present. A novel algorithm for scoring 4AT item 4 where collateral history is unavailable (score 4 if items 2–3 score ≥1; score 0 if items 1–3 score is 0) proved reliable; PPV 0.65 (0.54–0.76) and NPV 0.99 (0.97–1.00). For dementia detection, 4AT had PPV 0.39 (0.32–0.46) and NPV 0.94 (0.89–0.96); 6-CIT had PPV 0.46 (0.37–0.55) and NPV 0.94 (0.90–0.97). Conclusion 6-CIT and 4AT accurately exclude delirium and dementia in older ED attendees. 6-CIT does not require collateral history but has lower PPV for delirium.
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Affiliation(s)
- Dawn O’Sullivan
- Centre for Gerontology and Rehabilitation, School of Medicine, University College Cork, Cork, Ireland
| | - Noeleen Brady
- Centre for Gerontology and Rehabilitation, School of Medicine, University College Cork, Cork, Ireland
| | - Edmund Manning
- Centre for Gerontology and Rehabilitation, School of Medicine, University College Cork, Cork, Ireland
| | - Emma O’Shea
- Centre for Gerontology and Rehabilitation, School of Medicine, University College Cork, Cork, Ireland
| | | | - Niamh O ‘Regan
- Centre for Gerontology and Rehabilitation, School of Medicine, University College Cork, Cork, Ireland
| | - Suzanne Timmons
- Centre for Gerontology and Rehabilitation, School of Medicine, University College Cork, Cork, Ireland
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Martínez G, Vernooij RWM, Fuentes Padilla P, Zamora J, Bonfill Cosp X, Flicker L. 18F PET with florbetapir for the early diagnosis of Alzheimer's disease dementia and other dementias in people with mild cognitive impairment (MCI). Cochrane Database Syst Rev 2017; 11:CD012216. [PMID: 29164603 PMCID: PMC6486090 DOI: 10.1002/14651858.cd012216.pub2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND 18F-florbetapir uptake by brain tissue measured by positron emission tomography (PET) is accepted by regulatory agencies like the Food and Drug Administration (FDA) and the European Medicine Agencies (EMA) for assessing amyloid load in people with dementia. Its added value is mainly demonstrated by excluding Alzheimer's pathology in an established dementia diagnosis. However, the National Institute on Aging and Alzheimer's Association (NIA-AA) revised the diagnostic criteria for Alzheimer's disease and confidence in the diagnosis of mild cognitive impairment (MCI) due to Alzheimer's disease may be increased when using amyloid biomarkers tests like 18F-florbetapir. These tests, added to the MCI core clinical criteria, might increase the diagnostic test accuracy (DTA) of a testing strategy. However, the DTA of 18F-florbetapir to predict the progression from MCI to Alzheimer's disease dementia (ADD) or other dementias has not yet been systematically evaluated. OBJECTIVES To determine the DTA of the 18F-florbetapir PET scan for detecting people with MCI at time of performing the test who will clinically progress to ADD, other forms of dementia (non-ADD), or any form of dementia at follow-up. SEARCH METHODS This review is current to May 2017. We searched MEDLINE (OvidSP), Embase (OvidSP), PsycINFO (OvidSP), BIOSIS Citation Index (Thomson Reuters Web of Science), Web of Science Core Collection, including the Science Citation Index (Thomson Reuters Web of Science) and the Conference Proceedings Citation Index (Thomson Reuters Web of Science), LILACS (BIREME), CINAHL (EBSCOhost), ClinicalTrials.gov (https://clinicaltrials.gov), and the World Health Organization International Clinical Trials Registry Platform (WHO ICTRP) (http://www.who.int/ictrp/search/en/). We also searched ALOIS, the Cochrane Dementia & Cognitive Improvement Group's specialised register of dementia studies (http://www.medicine.ox.ac.uk/alois/). We checked the reference lists of any relevant studies and systematic reviews, and performed citation tracking using the Science Citation Index to identify any additional relevant studies. No language or date restrictions were applied to the electronic searches. SELECTION CRITERIA We included studies that had prospectively defined cohorts with any accepted definition of MCI at time of performing the test and the use of 18F-florbetapir scan to evaluate the DTA of the progression from MCI to ADD or other forms of dementia. In addition, we only selected studies that applied a reference standard for Alzheimer's dementia diagnosis, for example, National Institute of Neurological and Communicative Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) or Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) criteria. DATA COLLECTION AND ANALYSIS We screened all titles and abstracts identified in electronic-database searches. Two review authors independently selected studies for inclusion and extracted data to create two-by-two tables, showing the binary test results cross-classified with the binary reference standard. We used these data to calculate sensitivities, specificities, and their 95% confidence intervals. Two independent assessors performed quality assessment using the QUADAS-2 tool plus some additional items to assess the methodological quality of the included studies. MAIN RESULTS We included three studies, two of which evaluated the progression from MCI to ADD, and one evaluated the progression from MCI to any form of dementia.Progression from MCI to ADD was evaluated in 448 participants. The studies reported data on 401 participants with 1.6 years of follow-up and in 47 participants with three years of follow-up. Sixty-one (15.2%) participants converted at 1.6 years follow-up; nine (19.1%) participants converted at three years of follow-up.Progression from MCI to any form of dementia was evaluated in five participants with 1.5 years of follow-up, with three (60%) participants converting to any form of dementia.There were concerns regarding applicability in the reference standard in all three studies. Regarding the domain of flow and timing, two studies were considered at high risk of bias. MCI to ADD;Progression from MCI to ADD in those with a follow-up between two to less than four years had a sensitivity of 67% (95% CI 30 to 93) and a specificity of 71% (95% CI 54 to 85) by visual assessment (n = 47, 1 study).Progression from MCI to ADD in those with a follow-up between one to less than two years had a sensitivity of 89% (95% CI 78 to 95) and a specificity of 58% (95% CI 53 to 64) by visual assessment, and a sensitivity of 87% (95% CI 76 to 94) and a specificity of 51% (95% CI 45 to 56) by quantitative assessment by the standardised uptake value ratio (SUVR)(n = 401, 1 study). MCI to any form of dementia;Progression from MCI to any form of dementia in those with a follow-up between one to less than two years had a sensitivity of 67% (95% CI 9 to 99) and a specificity of 50% (95% CI 1 to 99) by visual assessment (n = 5, 1 study). MCI to any other forms of dementia (non-ADD);There was no information regarding the progression from MCI to any other form of dementia (non-ADD). AUTHORS' CONCLUSIONS Although sensitivity was good in one included study, considering the poor specificity and the limited data available in the literature, we cannot recommend routine use of 18F-florbetapir PET in clinical practice to predict the progression from MCI to ADD.Because of the poor sensitivity and specificity, limited number of included participants, and the limited data available in the literature, we cannot recommend its routine use in clinical practice to predict the progression from MCI to any form of dementia.Because of the high financial costs of 18F-florbetapir, clearly demonstrating the DTA and standardising the process of this modality are important prior to its wider use.
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Affiliation(s)
- Gabriel Martínez
- Iberoamerican Cochrane CentreC/ Sant Antoni Maria Claret 167Pavelló 18 Planta 0BarcelonaBarcelonaSpain08025
- Universidad de AntofagastaFaculty of Medicine and DentistryAntofagastaChile
- Institut Català de Neurociències AplicadesAlzheimer Research Center and Memory Clinic of Fundació ACEBarcelonaSpain
| | - Robin WM Vernooij
- Iberoamerican Cochrane CentreC/ Sant Antoni Maria Claret 167Pavelló 18 Planta 0BarcelonaBarcelonaSpain08025
| | - Paulina Fuentes Padilla
- Iberoamerican Cochrane CentreC/ Sant Antoni Maria Claret 167Pavelló 18 Planta 0BarcelonaBarcelonaSpain08025
- Universidad de AntofagastaFaculty of Medicine and DentistryAntofagastaChile
| | - Javier Zamora
- Ramon y Cajal Institute for Health Research (IRYCIS), CIBER Epidemiology and Public Health (CIBERESP), Madrid (Spain) and Women's Health Research Unit, Centre for Primary Care and Public Health, Queen Mary University of LondonClinical Biostatistics UnitLondonMadridUK
| | - Xavier Bonfill Cosp
- CIBER Epidemiología y Salud Pública (CIBERESP)Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau)Sant Antoni Maria Claret 167Pavilion 18BarcelonaCatalunyaSpain08025
- Universitat Autònoma de BarcelonaSant Antoni Maria Claret, 167Pavilion 18 (D‐13)BarcelonaCatalunyaSpain08025
| | - Leon Flicker
- University of Western AustraliaWestern Australian Centre for Health & Ageing ‐ WACHACrawleyPerthWestern AustraliaAustralia6014
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Martínez G, Vernooij RWM, Fuentes Padilla P, Zamora J, Flicker L, Bonfill Cosp X. 18F PET with flutemetamol for the early diagnosis of Alzheimer's disease dementia and other dementias in people with mild cognitive impairment (MCI). Cochrane Database Syst Rev 2017; 11:CD012884. [PMID: 29164602 PMCID: PMC6486287 DOI: 10.1002/14651858.cd012884] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND 18F-flutemetamol uptake by brain tissue, measured by positron emission tomography (PET), is accepted by regulatory agencies like the Food and Drug Administration (FDA) and the European Medicine Agencies (EMA) for assessing amyloid load in people with dementia. Its added value is mainly demonstrated by excluding Alzheimer's pathology in an established dementia diagnosis. However, the National Institute on Aging and Alzheimer's Association (NIA-AA) revised the diagnostic criteria for Alzheimer's disease and the confidence in the diagnosis of mild cognitive impairment (MCI) due to Alzheimer's disease may be increased when using some amyloid biomarkers tests like 18F-flutemetamol. These tests, added to the MCI core clinical criteria, might increase the diagnostic test accuracy (DTA) of a testing strategy. However, the DTA of 18F-flutemetamol to predict the progression from MCI to Alzheimer's disease dementia (ADD) or other dementias has not yet been systematically evaluated. OBJECTIVES To determine the DTA of the 18F-flutemetamol PET scan for detecting people with MCI at time of performing the test who will clinically progress to ADD, other forms of dementia (non-ADD) or any form of dementia at follow-up. SEARCH METHODS The most recent search for this review was performed in May 2017. We searched MEDLINE (OvidSP), Embase (OvidSP), PsycINFO (OvidSP), BIOSIS Citation Index (Thomson Reuters Web of Science), Web of Science Core Collection, including the Science Citation Index (Thomson Reuters Web of Science) and the Conference Proceedings Citation Index (Thomson Reuters Web of Science), LILACS (BIREME), CINAHL (EBSCOhost), ClinicalTrials.gov (https://clinicaltrials.gov), and the World Health Organization International Clinical Trials Registry Platform (WHO ICTRP) (http://www.who.int/ictrp/search/en/). We also searched ALOIS, the Cochrane Dementia & Cognitive Improvement Group's specialised register of dementia studies (http://www.medicine.ox.ac.uk/alois/). We checked the reference lists of any relevant studies and systematic reviews, and performed citation tracking using the Science Citation Index to identify any additional relevant studies. No language or date restrictions were applied to the electronic searches. SELECTION CRITERIA We included studies that had prospectively defined cohorts with any accepted definition of MCI at time of performing the test and the use of 18F-flutemetamol scan to evaluate the DTA of the progression from MCI to ADD or other forms of dementia. In addition, we only selected studies that applied a reference standard for Alzheimer's dementia diagnosis, for example, National Institute of Neurological and Communicative Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) or Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) criteria. DATA COLLECTION AND ANALYSIS We screened all titles and abstracts identified in electronic-database searches. Two review authors independently selected studies for inclusion and extracted data to create two-by-two tables, showing the binary test results cross-classified with the binary reference standard. We used these data to calculate sensitivities, specificities, and their 95% confidence intervals. Two independent assessors performed quality assessment using the QUADAS-2 tool plus some additional items to assess the methodological quality of the included studies. MAIN RESULTS Progression from MCI to ADD was evaluated in 243 participants from two studies. The studies reported data on 19 participants with two years of follow-up and on 224 participants with three years of follow-up. Nine (47.4%) participants converted at two years follow-up and 81 (36.2%) converted at three years of follow-up.There were concerns about participant selection and sampling in both studies. The index test domain in one study was considered unclear and in the second study it was considered at low risk of bias. For the reference standard domain, one study was considered at low risk and the second study was considered to have an unclear risk of bias. Regarding the domains of flow and timing, both studies were considered at high risk of bias. MCI to ADD;Progression from MCI to ADD at two years of follow-up had a sensitivity of 89% (95% CI 52 to 100) and a specificity of 80% (95% CI 44 to 97) by quantitative assessment by SUVR (n = 19, 1 study).Progression from MCI to ADD at three years of follow-up had a sensitivity of 64% (95% CI 53 to 75) and a specificity of 69% (95% CI 60 to 76) by visual assessment (n = 224, 1 study).There was no information regarding the other two objectives in this systematic review (SR): progression from MCI to other forms of dementia and progression to any form of dementia at follow-up. AUTHORS' CONCLUSIONS Due to the varying sensitivity and specificity for predicting the progression from MCI to ADD and the limited data available, we cannot recommend routine use of 18F-flutemetamol in clinical practice. 18F-flutemetamol has high financial costs; therefore, clearly demonstrating its DTA and standardising the process of the 18F-flutemetamol modality is important prior to its wider use.
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Affiliation(s)
- Gabriel Martínez
- Iberoamerican Cochrane CentreC/ Sant Antoni Maria Claret 167Pavelló 18 Planta 0BarcelonaBarcelonaSpain08025
- Universidad de AntofagastaFaculty of Medicine and DentistryAntofagastaChile
- Institut Català de Neurociències AplicadesAlzheimer Research Center and Memory Clinic of Fundació ACEBarcelonaSpain
| | - Robin WM Vernooij
- Iberoamerican Cochrane CentreC/ Sant Antoni Maria Claret 167Pavelló 18 Planta 0BarcelonaBarcelonaSpain08025
| | - Paulina Fuentes Padilla
- Iberoamerican Cochrane CentreC/ Sant Antoni Maria Claret 167Pavelló 18 Planta 0BarcelonaBarcelonaSpain08025
- Universidad de AntofagastaFaculty of Medicine and DentistryAntofagastaChile
| | - Javier Zamora
- Ramon y Cajal Institute for Health Research (IRYCIS), CIBER Epidemiology and Public Health (CIBERESP), Madrid (Spain) and Women's Health Research Unit, Centre for Primary Care and Public Health, Queen Mary University of LondonClinical Biostatistics UnitLondonMadridUK
| | - Leon Flicker
- University of Western AustraliaWestern Australian Centre for Health & Ageing ‐ WACHACrawleyPerthWestern AustraliaAustralia6014
| | - Xavier Bonfill Cosp
- CIBER Epidemiología y Salud Pública (CIBERESP)Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau)Sant Antoni Maria Claret 167Pavilion 18BarcelonaCatalunyaSpain08025
- Universitat Autònoma de BarcelonaSant Antoni Maria Claret, 167Pavilion 18 (D‐13)BarcelonaCatalunyaSpain08025
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49
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Martínez G, Vernooij RWM, Fuentes Padilla P, Zamora J, Flicker L, Bonfill Cosp X. 18F PET with florbetaben for the early diagnosis of Alzheimer's disease dementia and other dementias in people with mild cognitive impairment (MCI). Cochrane Database Syst Rev 2017; 11:CD012883. [PMID: 29164600 PMCID: PMC6485979 DOI: 10.1002/14651858.cd012883] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND 18F-florbetaben uptake by brain tissue, measured by positron emission tomography (PET), is accepted by regulatory agencies like the Food and Drug Administration (FDA) and the European Medicine Agencies (EMA) for assessing amyloid load in people with dementia. Its added value is mainly demonstrated by excluding Alzheimer's pathology in an established dementia diagnosis. However, the National Institute on Aging and Alzheimer's Association (NIA-AA) revised the diagnostic criteria for Alzheimer's disease and confidence in the diagnosis of mild cognitive impairment (MCI) due to Alzheimer's disease may be increased when using some amyloid biomarkers tests like 18F-florbetaben. These tests, added to the MCI core clinical criteria, might increase the diagnostic test accuracy (DTA) of a testing strategy. However, the DTA of 18F-florbetaben to predict the progression from MCI to Alzheimer's disease dementia (ADD) or other dementias has not yet been systematically evaluated. OBJECTIVES To determine the DTA of the 18F-florbetaben PET scan for detecting people with MCI at time of performing the test who will clinically progress to ADD, other forms of dementia (non-ADD), or any form of dementia at follow-up. SEARCH METHODS The most recent search for this review was performed in May 2017. We searched MEDLINE (OvidSP), Embase (OvidSP), PsycINFO (OvidSP), BIOSIS Citation Index (Thomson Reuters Web of Science), Web of Science Core Collection, including the Science Citation Index (Thomson Reuters Web of Science) and the Conference Proceedings Citation Index (Thomson Reuters Web of Science), LILACS (BIREME), CINAHL (EBSCOhost), ClinicalTrials.gov (https://clinicaltrials.gov), and the World Health Organization International Clinical Trials Registry Platform (WHO ICTRP) (http://www.who.int/ictrp/search/en/). We also searched ALOIS, the Cochrane Dementia & Cognitive Improvement Group's specialised register of dementia studies (http://www.medicine.ox.ac.uk/alois/). We checked the reference lists of any relevant studies and systematic reviews, and performed citation tracking using the Science Citation Index to identify any additional relevant studies. No language or date restrictions were applied to electronic searches. SELECTION CRITERIA We included studies that had prospectively defined cohorts with any accepted definition of MCI at time of performing the test and the use of 18F-florbetaben scan to evaluate the DTA of the progression from MCI to ADD or other forms of dementia. In addition, we only selected studies that applied a reference standard for Alzheimer's dementia diagnosis, for example, the National Institute of Neurological and Communicative Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA) or Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) criteria. DATA COLLECTION AND ANALYSIS We screened all titles and abstracts identified in electronic-database searches. Two review authors independently selected studies for inclusion and extracted data to create two-by-two tables, showing the binary test results cross-classified with the binary reference standard. We used these data to calculate sensitivities, specificities, and their 95% confidence intervals. Two independent assessors performed quality assessment using the QUADAS-2 tool plus some additional items to assess the methodological quality of the included studies. MAIN RESULTS Progression from MCI to ADD, any other form of dementia, and any form of dementia was evaluated in one study (Ong 2015). It reported data on 45 participants at four years of follow-up; 21 participants met NINCDS-ADRDA criteria for Alzheimer's disease dementia at four years of follow-up, the proportion converting to ADD was 47% of the 45 participants, and 11% of the 45 participants met criteria for other types of dementias (three cases of FrontoTemporal Dementia (FTD), one of Dementia with Lewy body (DLB), and one of Progressive Supranuclear Palsy (PSP)). We considered the study to be at high risk of bias in the domains of the reference standard, flow, and timing (QUADAS-2). MCI to ADD; 18F-florbetaben PET scan analysed visually: the sensitivity was 100% (95% confidence interval (CI) 84% to 100%) and the specificity was 83% (95% CI 63% to 98%) (n = 45, 1 study). Analysed quantitatively: the sensitivity was 100% (95% CI 84% to 100%) and the specificity was 88% (95% CI 68% to 97%) for the diagnosis of ADD at follow-up (n = 45, 1 study). MCI to any other form of dementia (non-ADD); 18F-florbetaben PET scan analysed visually: the sensitivity was 0% (95% CI 0% to 52%) and the specificity was 38% (95% CI 23% to 54%) (n = 45, 1 study). Analysed quantitatively: the sensitivity was 0% (95% CI 0% to 52%) and the specificity was 40% (95% CI 25% to 57%) for the diagnosis of any other form of dementia at follow-up (n = 45, 1 study). MCI to any form of dementia;18F-florbetaben PET scan analysed visually: the sensitivity was 81% (95% CI 61% to 93%) and the specificity was 79% (95% CI 54% to 94%) (n = 45, 1 study). Analysed quantitatively: the sensitivity was 81% (95% CI 61% to 93%) and the specificity was 84% (95% CI 60% to 97%) for the diagnosis of any form of dementia at follow-up (n = 45, 1 study). AUTHORS' CONCLUSIONS Although we were able to calculate one estimation of DTA in, especially, the prediction of progression from MCI to ADD at four years follow-up, the small number of participants implies imprecision of sensitivity and specificity estimates. We cannot make any recommendation regarding the routine use of 18F-florbetaben in clinical practice based on one single study with 45 participants. 18F-florbetaben has high financial costs, therefore, clearly demonstrating its DTA and standardising the process of the 18F-florbetaben modality are important prior to its wider use.
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Affiliation(s)
- Gabriel Martínez
- Iberoamerican Cochrane CentreC/ Sant Antoni Maria Claret 167Pavelló 18 Planta 0BarcelonaBarcelonaSpain08025
- Universidad de AntofagastaFaculty of Medicine and DentistryAntofagastaChile
- Institut Català de Neurociències AplicadesAlzheimer Research Center and Memory Clinic of Fundació ACEBarcelonaSpain
| | - Robin WM Vernooij
- Iberoamerican Cochrane CentreC/ Sant Antoni Maria Claret 167Pavelló 18 Planta 0BarcelonaBarcelonaSpain08025
| | - Paulina Fuentes Padilla
- Iberoamerican Cochrane CentreC/ Sant Antoni Maria Claret 167Pavelló 18 Planta 0BarcelonaBarcelonaSpain08025
- Universidad de AntofagastaFaculty of Medicine and DentistryAntofagastaChile
| | - Javier Zamora
- Ramon y Cajal Institute for Health Research (IRYCIS), CIBER Epidemiology and Public Health (CIBERESP), Madrid (Spain) and Women's Health Research Unit, Centre for Primary Care and Public Health, Queen Mary University of LondonClinical Biostatistics UnitLondonMadridUK
| | - Leon Flicker
- University of Western AustraliaWestern Australian Centre for Health & Ageing ‐ WACHACrawleyPerthWestern AustraliaAustralia6014
| | - Xavier Bonfill Cosp
- CIBER Epidemiología y Salud Pública (CIBERESP)Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau)Sant Antoni Maria Claret 167Pavilion 18BarcelonaCatalunyaSpain08025
- Universitat Autònoma de BarcelonaSant Antoni Maria Claret, 167Pavilion 18 (D‐13)BarcelonaCatalunyaSpain08025
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50
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Davies HR, Cadar D, Herbert A, Orrell M, Steptoe A. Hearing Impairment and Incident Dementia: Findings from the English Longitudinal Study of Ageing. J Am Geriatr Soc 2017; 65:2074-2081. [PMID: 28734053 PMCID: PMC5637915 DOI: 10.1111/jgs.14986] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To determine whether hearing loss is associated with incident physician-diagnosed dementia in a representative sample. DESIGN Retrospective cohort study. SETTING English Longitudinal Study of Ageing. PARTICIPANTS Adults aged 50 and older. MEASUREMENTS Cross-sectional associations between self-reported (n = 7,865) and objective hearing measures (n = 6,902) and dementia were examined using multinomial-logistic regression. The longitudinal association between self-reported hearing at Wave 2 (2004/05) and cumulative physician-diagnosed dementia up to Wave 7 (2014/15) was modelled using Cox proportional hazards regression. RESULTS After adjustment for potential confounders, in cross-sectional analysis, participants who had self-reported or objective moderate and poor hearing were more likely to have a dementia diagnosis than those with normal hearing (self-reported: odds ratio OR = 1.6, 95% CI = 1.1-2.4 moderate hearing; OR = 2.6, 95% CI = 1.7-3.9 poor hearing, objective: OR = 1.6, 95% CI = 1.0-2.8 moderate hearing; OR = 4.4, 95% CI = 1.9-9.9 poor hearing). Longitudinally, the hazard of developing dementia was 1.4 (95% CI = 1.0-1.9) times as high in individuals who reported moderate hearing and 1.6 (95% CI = 1.1-2.0) times as high in those who reported poor hearing. CONCLUSION Older adults with hearing loss are at greater risk of dementia than those with normal hearing. These findings are consistent with the rationale that correction of hearing loss could help delay the onset of dementia, or that hearing loss itself could serve as a risk indicator for cognitive decline.
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Affiliation(s)
- Hilary R Davies
- Institute of Epidemiology and Public Health, University College London, London, United Kingdom
| | - Dorina Cadar
- Institute of Epidemiology and Public Health, University College London, London, United Kingdom
| | - Annie Herbert
- Institute of Epidemiology and Public Health, University College London, London, United Kingdom
| | - Martin Orrell
- Institute of Mental Health, University of Nottingham, Nottingham, United Kingdom
| | - Andrew Steptoe
- Institute of Epidemiology and Public Health, University College London, London, United Kingdom
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