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Mfene XP, Pillay BJ. Screening for dementia and associated factors in older adults from low socioeconomic communities in iLembe, KwaZulu-Natal. Health SA 2024; 29:2437. [PMID: 38726059 PMCID: PMC11079343 DOI: 10.4102/hsag.v29i0.2437] [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: 05/19/2023] [Accepted: 10/31/2023] [Indexed: 05/12/2024] Open
Abstract
Background Dementia is one of the leading non-communicable causes of disability and mortality in older adults, with recent research showing that it is increasing in low-middle-income countries compared to high-income countries. As such, multidisciplinary efforts are needed to effectively reduce the prevalence and risk of dementia through quick screening, diagnosis, and management of those with dementia and those at risk. Aim The study's objectives were to estimate the prevalence of dementia and measure the sociodemographic and clinical risks in older adults in low socioeconomic communities. Setting The study was conducted among older adults aged ≥ 60 years from the iLembe district in South Africa. Methods This cross-sectional, one-phased, household study was conducted to screen for dementia over 8 months between October 2018 and October 2019. Demographic and clinical data were collected using a semi-structured questionnaire. In addition, the Mini-Mental Status Exam, Ascertain Dementia Eight-item questionnaire and Instrumental Activities of Daily Living Scale were administered to a multi-stage cluster sample of 320 participants to ascertain dementia prevalence. Frequencies and multivariate logistic regression were conducted to determine risk factors correlated with dementia. Results The prevalence of dementia was 13.4%. Participants aged 80 years and above were 2.73 times more likely to develop dementia than participants younger than 80 years. Those with an education level of Grade 1-7 had a 69% less chance of developing dementia than those without formal education. Single participants showed an almost seven-fold increase in dementia. Lastly, depression increased the risk of dementia by two-fold. Conclusion Dementia was probable in over one-sixth of the sample. Dementia risk factors were both modifiable and non-modifiable. Contribution Dementia prevalence in South Africa is increasing and therefore it is crucial to develop a dementia plan that is specific to the South African context which will include strategies for early identification of the disease, reducing modifiable risks and strategic management of dementia associated medical conditions such as depression and vascular diseases.
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Affiliation(s)
- Xoli P Mfene
- Department of Psychology, Faculty of Applied Human Sciences, University of KwaZulu Natal, Pietermaritzburg, South Africa
| | - Basil J Pillay
- Department of Behavioural Medicine, Faculty of Nursing and Public Health, University of KwaZulu Natal, Durban, South Africa
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2
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Oyinlola O, Mahmoud K, Adeoti AB, Abiodun AA. COVID-19: Experiences of Social Workers Supporting Older Adults With Dementia in Nigeria. INQUIRY : A JOURNAL OF MEDICAL CARE ORGANIZATION, PROVISION AND FINANCING 2024; 61:469580241239844. [PMID: 38500245 PMCID: PMC10949545 DOI: 10.1177/00469580241239844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/05/2024] [Accepted: 02/28/2024] [Indexed: 03/20/2024]
Abstract
Amidst the COVID-19 pandemic, numerous public health protocols were instituted by government agencies to safeguard individuals with dementia, their family caregivers, and formal care providers. While these preventive measures were implemented with good intentions, they inadvertently imposed significant challenges on medical social workers in Nigeria. This paper explored the experiences of medical social workers caring for people with dementia during the COVID-19 pandemic in Nigeria. Twenty-six medical social workers from 6 government hospitals in Southwestern Nigeria participated in an in-depth interview. The research reveals 3 pivotal aspects: Firstly, the escalating demands within the work environment, where medical social workers grapple with the intricate task of conveying sensitive information about dementia diagnosis and COVID-19 prevention protocol, managing expectations regarding dementia diagnoses, and navigating resource constraints for individuals with dementia during the pandemic. Secondly, discernible impacts on the work climate and interprofessional relationships shed light on the challenges these professionals face in collaborating with other healthcare providers. Lastly, the reverberations on social workers' personal lives underscore the pandemic's toll on their well-being. Thus, the findings underscore the need for proactive measures to equip medical social workers to face the distinctive challenges in dementia care during future pandemics. Recognizing the potential resurgence of global health crises, the research highlights the need for strategic preparedness to mitigate the impact of future pandemics on the well-being of individuals with dementia and the professionals dedicated to their care.
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Affiliation(s)
- Oluwagbemiga Oyinlola
- School of Social Work, McGill University, Montreal, QC, Canada
- Medical Social Services Department, University College Hospital, Ibadan, Oyo, Nigeria
| | - Kafayat Mahmoud
- Center for Innovation in Social Science, Boston University, Boston, MA, USA
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3
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Roe C, Safic S, Mwaipopo L, Dotchin CL, Klaptocz J, Gray W, Joseph M, Spector A, Urasa S, Walker RW. Dementia Prevalence and Risk Factors: Data From Rural Tanzania. Alzheimer Dis Assoc Disord 2023; 37:229-236. [PMID: 37561952 DOI: 10.1097/wad.0000000000000564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 04/19/2023] [Indexed: 08/12/2023]
Abstract
OBJECTIVES The burden of dementia is increasing in sub-Saharan Africa (SSA), but there are limited epidemiological data on dementia in SSA. This study investigated the prevalence and associations of dementia in older adults (less than 60 y) attending the outpatient department of Mount Meru Hospital in Tanzania. METHODS This one-phase cross-sectional study screened a sample using the Identification of Dementia in Elderly Africans (IDEA) cognitive screening tool. Those that screened as having possible and probable dementia were further assessed, and diagnosis of dementia was made according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV). Demographic and risk factor data were collected. RESULTS Within those screened, 57/1141 (5.0%) (95% CI: 3.7-6.3) had dementia. Female sex [odds ratio (OR)=2.778, 95% CI: 1.074-7.189], having never attended school (OR=6.088, 95% CI: 1.360-27.256), alcohol (U/wk) (OR=1.080, 95% CI: 1.016-1.149), uncorrected visual impairment (OR=4.260, 95% CI: 1.623-11.180), body mass index <18.5 kg/m 2 (OR=6.588, 95% CI: 2.089-20.775), and stroke (OR=15.790, 95% CI: 3.48-74.475) were found to be significantly, independently associated with dementia. CONCLUSIONS The prevalence of dementia in this population is similar to a recent community-based rate in Tanzania and lower than a hospital-based rate in Senegal. This is the first time the association between visual impairment and dementia has been reported in SSA. Other associations are in keeping with previous literature.
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Affiliation(s)
| | | | | | - Catherine L Dotchin
- Newcastle Medical School
- Northumbria Healthcare NHS Trust, Newcastle upon Tyne
| | - Joanna Klaptocz
- Newcastle Medical School
- University College London, London, UK
| | - William Gray
- Northumbria Healthcare NHS Trust, Newcastle upon Tyne
| | - Marcyella Joseph
- Botswana Medical School, University of Botswana, Gaborone, Botswana
| | | | - Sarah Urasa
- Kilimanjaro Christian Medical Centre, Moshi, Tanzania
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4
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George G, Fricker M, Todd O, Makowa D, Tembo C, Dotchin C, Gray WK, Walker RW, Mbwele B, Paddick SM. Screening for delirium and dementia in older hospitalised adults in Zambia. J Neurol Sci 2022; 436:120186. [DOI: 10.1016/j.jns.2022.120186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 01/27/2022] [Accepted: 02/11/2022] [Indexed: 10/18/2022]
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5
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Akinyemi RO, Yaria J, Ojagbemi A, Guerchet M, Okubadejo N, Njamnshi AK, Sarfo FS, Akpalu A, Ogbole G, Ayantayo T, Adokonou T, Paddick SM, Ndetei D, Bosche J, Ayele B, Damas A, Coker M, Mbakile-Mahlanza L, Ranchod K, Bobrow K, Anazodo U, Damasceno A, Seshadri S, Pericak-Vance M, Lawlor B, Miller BL, Owolabi M, Baiyewu O, Walker R, Gureje O, Kalaria RN, Ogunniyi A. Dementia in Africa: Current evidence, knowledge gaps, and future directions. Alzheimers Dement 2022; 18:790-809. [PMID: 34569714 PMCID: PMC8957626 DOI: 10.1002/alz.12432] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/21/2021] [Accepted: 06/11/2021] [Indexed: 12/19/2022]
Abstract
In tandem with the ever-increasing aging population in low and middle-income countries, the burden of dementia is rising on the African continent. Dementia prevalence varies from 2.3% to 20.0% and incidence rates are 13.3 per 1000 person-years with increasing mortality in parts of rapidly transforming Africa. Differences in nutrition, cardiovascular factors, comorbidities, infections, mortality, and detection likely contribute to lower incidence. Alzheimer's disease, vascular dementia, and human immunodeficiency virus/acquired immunodeficiency syndrome-associated neurocognitive disorders are the most common dementia subtypes. Comprehensive longitudinal studies with robust methodology and regional coverage would provide more reliable information. The apolipoprotein E (APOE) ε4 allele is most studied but has shown differential effects within African ancestry compared to Caucasian. More candidate gene and genome-wide association studies are needed to relate to dementia phenotypes. Validated culture-sensitive cognitive tools not influenced by education and language differences are critically needed for implementation across multidisciplinary groupings such as the proposed African Dementia Consortium.
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Affiliation(s)
- Rufus O Akinyemi
- Neuroscience and Ageing Research Unit, Institute for Advanced Medical Research and Training, College of Medicine, University of Ibadan, Ibadan, Nigeria
- Centre for Genomic and Precision Medicine, College of Medicine, University of Ibadan, Ibadan, Nigeria
- Department of Neurology, University College Hospital, Ibadan, Nigeria
| | - Joseph Yaria
- Department of Neurology, University College Hospital, Ibadan, Nigeria
| | - Akin Ojagbemi
- Department of Psychiatry University College Hospital/College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Maëlenn Guerchet
- INSERM, Univ. Limoges, CHU Limoges, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, Limoges, France
| | - Njideka Okubadejo
- Neurology Unit, Department of Medicine, Faculty of Clinical Sciences, College of Medicine, University of Lagos, Idi Araba, Lagos, Nigeria
| | - Alfred K Njamnshi
- Department of Neurology, Yaoundé Central Hospital/Faculty of Medicine and Biomedical Sciences, The University of Yaoundé I, Yaoundé, Cameroon
- Brain Research Africa Initiative (BRAIN), Geneva, Switzerland/Yaoundé, Cameroon
| | - Fred S Sarfo
- Department of Medicine, Kwame Nkrumah University of Science & Technology, Komfo Anokye Teaching Hospital, Kumasi, Ghana
| | - Albert Akpalu
- Department of Medicine, University of Ghana Medical School/Korle Bu Teaching Hospital, Accra, Ghana
| | - Godwin Ogbole
- Department of Radiology, University College Hospital/College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Temitayo Ayantayo
- Neuroscience and Ageing Research Unit, Institute for Advanced Medical Research and Training, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Thierry Adokonou
- Department of Neurology, University Teaching Hospital, Parakou, Benin
| | - Stella-Maria Paddick
- Translational and Clinical Research Institute, Newcastle University, UK/Gateshead Health NHS Foundation Trust, Gateshead, UK
| | - David Ndetei
- Department of Psychiatry, University of Nairobi and African Meatal Health and Training Foundation, Nairobi, Kenya
| | - Judith Bosche
- Kilimanjaro Christian Medical College, Moshi, Tanzania
| | - Biniyam Ayele
- College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Andrea Damas
- Mirembe Mental Health Hospital, Dodoma, Tanzania
| | - Motunrayo Coker
- Neuroscience and Ageing Research Unit, Institute for Advanced Medical Research and Training, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Lingani Mbakile-Mahlanza
- Department of Psychology, Faculty of Social Sciences, University of Botswana, Gaborone, Botswana
| | - Kirti Ranchod
- Lufuno Neuropsychiatry Centre, Johannesburg, South Africa
| | - Kirsten Bobrow
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Udunna Anazodo
- Lawson Health Research Institute / Department of Medical Biophysics, Western University, London, Ontario, Canada
| | - Albertino Damasceno
- Department of Cardiology, Faculty of Medicine, Eduardo Mondlane University, Maputo, Mozambique
| | - Sudha Seshadri
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, University of Texas Health Sciences Center, San Antonio, Texas, USA
| | - Margaret Pericak-Vance
- John T. Hussman Institute for Human Genomics and the Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Brian Lawlor
- Global Brain Health Institute, Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
| | - Bruce L Miller
- Global Brain Health Institute, Memory and Aging Center, University of California, San Francisco, California, USA
| | - Mayowa Owolabi
- Neuroscience and Ageing Research Unit, Institute for Advanced Medical Research and Training, College of Medicine, University of Ibadan, Ibadan, Nigeria
- Centre for Genomic and Precision Medicine, College of Medicine, University of Ibadan, Ibadan, Nigeria
- Department of Neurology, University College Hospital, Ibadan, Nigeria
| | - Olusegun Baiyewu
- Department of Psychiatry University College Hospital/College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Richard Walker
- Neuroscience and Ageing Research Unit, Institute for Advanced Medical Research and Training, College of Medicine, University of Ibadan, Ibadan, Nigeria
- Department of Medicine, North Tyneside General Hospital, North Shields, UK
| | - Oye Gureje
- Department of Psychiatry University College Hospital/College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Rajesh N Kalaria
- Neuroscience and Ageing Research Unit, Institute for Advanced Medical Research and Training, College of Medicine, University of Ibadan, Ibadan, Nigeria
- Translational and Clinical Research Institute, Newcastle University, Newcastle, UK
| | - Adesola Ogunniyi
- Neuroscience and Ageing Research Unit, Institute for Advanced Medical Research and Training, College of Medicine, University of Ibadan, Ibadan, Nigeria
- Department of Neurology, University College Hospital, Ibadan, Nigeria
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6
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Casagrande M, Marselli G, Agostini F, Forte G, Favieri F, Guarino A. The complex burden of determining prevalence rates of mild cognitive impairment: A systematic review. Front Psychiatry 2022; 13:960648. [PMID: 36213927 PMCID: PMC9537698 DOI: 10.3389/fpsyt.2022.960648] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/18/2022] [Indexed: 11/24/2022] Open
Abstract
Mild cognitive impairment (MCI) is a syndrome characterized by a decline in cognitive performance greater than expected for an individual's age and education level, but that does not interfere much with daily life activities. Establishing the prevalence of MCI is very important for both clinical and research fields. In fact, in a certain percentage of cases, MCI represents a prodromal condition for the development of dementia. Accordingly, it is important to identify the characteristics of MCI that allow us to predict the development of dementia. Also, initial detection of cognitive decline can allow the early implementation of prevention programs aimed at counteracting or slowing it down. To this end, it is important to have a clear picture of the prevalence of MCI and, consequently, of the diagnostic criteria used. According to these issues, this systematic review aims to analyze MCI prevalence, exploring the methods for diagnosing MCI that determine its prevalence. The review process was conducted according to the PRISMA statement. Three thousand one hundred twenty-one international articles were screened, and sixty-six were retained. In these studies, which involved 157,035 subjects, the prevalence of MCI ranged from 1.2 to 87%. The review results showed a large heterogeneity among studies due to differences in the subjects' recruitment, the diagnostic criteria, the assessed cognitive domains, and other methodological aspects that account for a higher range of MCI prevalence. This large heterogeneity prevents drawing any firm conclusion about the prevalence of MCI.
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Affiliation(s)
- Maria Casagrande
- Department of Dynamic and Clinical Psychology and Health Studies, "Sapienza" University of Rome, Rome, Italy
| | - Giulia Marselli
- Department of Psychology, "Sapienza" University of Rome, Rome, Italy
| | | | - Giuseppe Forte
- Department of Dynamic and Clinical Psychology and Health Studies, "Sapienza" University of Rome, Rome, Italy.,Body and Action Laboratory, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia Foundation, Rome, Italy
| | - Francesca Favieri
- Department of Psychology, "Sapienza" University of Rome, Rome, Italy.,Body and Action Laboratory, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia Foundation, Rome, Italy
| | - Angela Guarino
- Department of Psychology, "Sapienza" University of Rome, Rome, Italy
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7
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Paddick SM, Yoseph M, Gray WK, Andrea D, Barber R, Colgan A, Dotchin C, Urasa S, Kissima J, Haule I, Kisoli A, Rogathi J, Safic S, Mushi D, Robinson L, Walker RW. Effectiveness of App-Based Cognitive Screening for Dementia by Lay Health Workers in Low Resource Settings. A Validation and Feasibility Study in Rural Tanzania. J Geriatr Psychiatry Neurol 2021; 34:613-621. [PMID: 32964799 PMCID: PMC8600584 DOI: 10.1177/0891988720957105] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND The majority of people with dementia live in low-and middle-income countries (LMICs). In sub-Saharan Africa (SSA) human-resource shortages in mental health and geriatric medicine are well recognized. Use of technological solutions may improve access to diagnosis. We aimed to assess the diagnostic accuracy of a brief dementia screening mobile application (app) for non-specialist workers in rural Tanzania against blinded gold-standard diagnosis of DSM-5 dementia. The app includes 2 previously-validated culturally appropriate low-literacy screening tools for cognitive (IDEA cognitive screen) and functional impairment (abbreviated IDEA-IADL questionnaire). METHODS This was a 2-stage community-based door-to-door study. In Stage1, rural primary health workers approached all individuals aged ≥60 years for app-based dementia screening in 12 villages in Hai district, Kilimanjaro Tanzania.In Stage 2, a stratified sub-sample were clinically-assessed for dementia blind to app screening score. Assessment included clinical history, neurological and bedside cognitive assessment and collateral history. RESULTS 3011 (of 3122 eligible) older people consented to screening. Of these, 610 were evaluated in Stage 2. For the IDEA cognitive screen, the area under the receiver operating characteristic (AUROC) curve was 0.79 (95% CI 0.74-0.83) for DSM-5 dementia diagnosis (sensitivity 84.8%, specificity 58.4%). For those 358 (44%) completing the full app, AUROC was 0.78 for combined cognitive and informant-reported functional assessment. CONCLUSIONS The pilot dementia screening app had good sensitivity but lacked specificity for dementia when administered by non-specialist rural community workers. This technological approach may be a promising way forward in low-resource settings, specialist onward referral may be prioritized.
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Affiliation(s)
- Stella-Maria Paddick
- Newcastle University, Newcastle upon
Tyne, United Kingdom,Stella-Maria Paddick, Campus for Ageing and
Vitality Newcastle University, Westgate Road, Newcastle upon Tyne NE4 6BE,
Tanzania.
| | - Marcella Yoseph
- Kilimanjaro Christian Medical University
College, Moshi, Tanzania
| | - William K. Gray
- Northumbria Healthcare NHS Foundation
Trust, North Tyneside General Hospital, North Shields, United Kingdom
| | | | - Robyn Barber
- Newcastle University, Newcastle upon
Tyne, United Kingdom
| | - Aofie Colgan
- Newcastle University, Newcastle upon
Tyne, United Kingdom
| | - Catherine Dotchin
- Newcastle University, Newcastle upon
Tyne, United Kingdom,Northumbria Healthcare NHS Foundation
Trust, North Tyneside General Hospital, North Shields, United Kingdom
| | - Sarah Urasa
- Kilimanjaro Christian Medical University
College, Moshi, Tanzania
| | - John Kissima
- Hai District Hospital, Boman’gombe,
Kilimanjaro, Tanzania
| | - Irene Haule
- Hai District Hospital, Boman’gombe,
Kilimanjaro, Tanzania
| | - Aloyce Kisoli
- Kilimanjaro Christian Medical University
College, Moshi, Tanzania
| | - Jane Rogathi
- Kilimanjaro Christian Medical University
College, Moshi, Tanzania
| | | | - Declare Mushi
- Kilimanjaro Christian Medical University
College, Moshi, Tanzania
| | | | - Richard W. Walker
- Newcastle University, Newcastle upon
Tyne, United Kingdom,Northumbria Healthcare NHS Foundation
Trust, North Tyneside General Hospital, North Shields, United Kingdom
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8
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Gray WK, Paddick SM, Ogunniyi A, Olakehinde O, Dotchin C, Kissima J, Urasa S, Kisoli A, Rogathi J, Mushi D, Adebiyi A, Haule I, Robinson L, Walker R. Population normative data for three cognitive screening tools for older adults in sub-Saharan Africa. Dement Neuropsychol 2021; 15:339-349. [PMID: 34630921 PMCID: PMC8485647 DOI: 10.1590/1980-57642021dn15-030005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 04/28/2021] [Indexed: 01/11/2023] Open
Abstract
In sub-Saharan Africa (SSA),cognitive screening is complicated by both cultural and educational factors, and the existing normative values may not be applicable. The Identification of Dementia in Elderly Africans (IDEA) cognitive screen is a low-literacy measure with good diagnostic accuracy for dementia.
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Affiliation(s)
- William Keith Gray
- Northumbria Healthcare NHS Foundation Trust, Department of Medicine, North Tyneside General Hospital, North Shields, United Kingdom
| | - Stella-Maria Paddick
- Newcastle University Institute of Population Health Sciences and Clinical and Translational Medicine, Framlington Place, Newcastle upon Tyne, United Kingdom
| | - Adesola Ogunniyi
- University of Ibadan, Department of Medicine, Ibadan, Oyo State, Nigeria
| | - Olaide Olakehinde
- University of Ibadan, Department of Medicine, Ibadan, Oyo State, Nigeria
| | - Catherine Dotchin
- Northumbria Healthcare NHS Foundation Trust, Department of Medicine, North Tyneside General Hospital, North Shields, United Kingdom.,Newcastle University Institute of Population Health Sciences and Clinical and Translational Medicine, Framlington Place, Newcastle upon Tyne, United Kingdom
| | - John Kissima
- Hai District Hospital, District Medical Office, Boman'gombe, Kilimanjaro, Tanzania
| | - Sarah Urasa
- Kilimanjaro Christian Medical University College, Department of Medicine, Moshi, Tanzania
| | - Aloyce Kisoli
- Kilimanjaro Christian Medical University College, Department of Medicine, Moshi, Tanzania
| | - Jane Rogathi
- Kilimanjaro Christian Medical University College, Department of Medicine, Moshi, Tanzania
| | - Declare Mushi
- Kilimanjaro Christian Medical University College, Department of Medicine, Moshi, Tanzania
| | - Akindele Adebiyi
- University of Ibadan, Department of Medicine, Ibadan, Oyo State, Nigeria
| | - Irene Haule
- Hai District Hospital, District Medical Office, Boman'gombe, Kilimanjaro, Tanzania
| | - Louise Robinson
- Newcastle University Institute of Population Health Sciences and Clinical and Translational Medicine, Framlington Place, Newcastle upon Tyne, United Kingdom
| | - Richard Walker
- Northumbria Healthcare NHS Foundation Trust, Department of Medicine, North Tyneside General Hospital, North Shields, United Kingdom.,Newcastle University Institute of Population Health Sciences and Clinical and Translational Medicine, Framlington Place, Newcastle upon Tyne, United Kingdom
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9
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Ojagbemi A, Okekunle AP, Babatunde O. Dominant and Modifiable Risk Factors for Dementia in Sub-Saharan Africa: A Systematic Review and Meta-Analysis. Front Neurol 2021; 12:627761. [PMID: 33841302 PMCID: PMC8027065 DOI: 10.3389/fneur.2021.627761] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/25/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Sub-Saharan Africa (SSA) is projected to have a rapid increase in the number of people living with dementia by 2050. Yet, there is currently no robust evidence on the risk factors for dementia in the sub-region that could inform context specific interventions. Methods: We conducted a systematic review and meta-analysis of observational studies to determine the dominant and modifiable risk factors for dementia in SSA. We searched MEDLINE, EMBASE, PsychINFO, and African Journals Online using keywords for dementia and Alzheimer's disease as well as the.mp operator for all 47 SSA countries or regions. We included peer-reviewed original studies with epidemiological designs, conducted random effect meta-analysis and determined the dominant and modifiable risk factors for dementia using the inverse of variance method. Results: A total of 44 studies out of 2,848 met criteria for syntheses. The pooled annual incidence of dementia from 5,200 cohort risk years was 2.0% [(95% Confidence Interval (CI) = 1.0-4.0%)]. The pooled prevalence was 5.0% (95% CI = 2.0-7.0%). Older age was the dominant risk factor for both prevalent [(Standard error (S.E = 0.3, weight = 25.2%)] and incident dementia (S.E = 0.02, weight = 95.8%), while low educational attainment (S.E = 0.19, weight = 32.6%) and poor predementia cognitive functioning at baseline (S.E = 0.2, weight = 20.5%) were the best ranked modifiable risk factor for incident dementia. Conclusion: Low formal educational attainment which, in SSA, may represent a stable index of low socioeconomic position and health disadvantage over the life course, was the most prominent modifiable risk factor for incident dementia. Findings have implications for deliberate policies targeted at access to education across the life course as a primary prevention strategy against dementia in SSA.
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Affiliation(s)
- Akin Ojagbemi
- Department of Psychiatry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Akinkunmi Paul Okekunle
- Department of Epidemiology and Medical Statistics, College of Medicine, University of Ibadan, Ibadan, Nigeria.,Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, South Korea
| | - Opeyemi Babatunde
- School of Medicine Primary Care Center Versus Arthritis Keele University, Staffordshire, United Kingdom
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10
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McGrattan AM, Zhu Y, Richardson CD, Mohan D, Soh YC, Sajjad A, van Aller C, Chen S, Paddick SM, Prina M, Siervo M, Robinson LA, Stephan BC. Prevalence and Risk of Mild Cognitive Impairment in Low and Middle-Income Countries: A Systematic Review. J Alzheimers Dis 2021; 79:743-762. [DOI: 10.3233/jad-201043] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background: Mild cognitive impairment (MCI) is a cognitive state associated with increased risk of dementia. Little research on MCI exists from low-and middle-income countries (LMICs), despite high prevalence of dementia in these settings. Objective: This systematic review aimed to review epidemiological reports to determine the prevalence of MCI and its associated risk factors in LMICs. Methods: Medline, Embase, and PsycINFO were searched from inception until November 2019. Eligible articles reported on MCI in population or community-based studies from LMICs and were included as long as MCI was clearly defined. Results: 5,568 articles were screened, and 78 retained. In total, n = 23 different LMICs were represented; mostly from China (n = 55 studies). Few studies were from countries defined as lower-middle income (n = 14), low income (n = 4), or from population representative samples (n = 4). There was large heterogeneity in how MCI was diagnosed; with Petersen criteria the most commonly applied (n = 26). Prevalence of amnesic MCI (aMCI) (Petersen criteria) ranged from 0.6%to 22.3%. Similar variability existed across studies using the International Working Group Criteria for aMCI (range 4.5%to 18.3%) and all-MCI (range 6.1%to 30.4%). Risk of MCI was associated with demographic (e.g., age), health (e.g., cardio-metabolic disease), and lifestyle (e.g., social isolation, smoking, diet and physical activity) factors. Conclusion: Outside of China, few MCI studies have been conducted in LMIC settings. There is an urgent need for population representative epidemiological studies to determine MCI prevalence in LMICs. MCI diagnostic methodology also needs to be standardized. This will allow for cross-study comparison and future resource planning.
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Affiliation(s)
| | - Yueping Zhu
- Department of Psychology and Behavioral Science, Zhejiang University, Hangzhou, China
| | | | - Devi Mohan
- Global Public Health, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Malaysia
- South East Asia Community Observatory (SEACO), Monash University Malaysia, Segamat, Malaysia
| | - Yee Chang Soh
- Global Public Health, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Malaysia
- South East Asia Community Observatory (SEACO), Monash University Malaysia, Segamat, Malaysia
| | - Ayesha Sajjad
- Erasmus School of Health Policy and Management; Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Carla van Aller
- Population Health Sciences Institute, Newcastle University, UK
| | - Shulin Chen
- Department of Psychology and Behavioral Science, Zhejiang University, Hangzhou, China
| | - Stella-Maria Paddick
- Translational and Clinical Research Institute, Newcastle University, UK
- Gateshead NHS Community Health Foundation Trust, Gateshead, UK
| | - Matthew Prina
- Social Epidemiology Research Group, Health Service and Population Research Department, King’s College London, London, UK
| | - Mario Siervo
- School of Life Sciences, The University of Nottingham Medical School, Nottingham, UK
| | | | - Blossom C.M. Stephan
- Institute of Mental Health, Division of Psychiatry and Applied Psychology, Nottingham University, UK
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11
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Pais R, Ruano L, P. Carvalho O, Barros H. Global Cognitive Impairment Prevalence and Incidence in Community Dwelling Older Adults-A Systematic Review. Geriatrics (Basel) 2020; 5:geriatrics5040084. [PMID: 33121002 PMCID: PMC7709591 DOI: 10.3390/geriatrics5040084] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 10/26/2020] [Indexed: 01/20/2023] Open
Abstract
(1) Background: We proposed to review worldwide estimates of cognitive impairment prevalence and incidence in adults older than 50 years of age living in the community. (2) Methods: Systematic searches were performed in January 2019 using MEDLINE/PubMed. Articles were selected if they referred to cognitive impairment, prevalence, incidence, elders, and population or community-based studies. Analysis, aggregated by different methodologic features, was performed. (3) Results: Prevalence (80 studies) ranged between 5.1% and 41% with a median of 19.0% (25th percentile = 12.0%; 75th percentile = 24.90%). Incidence (11 studies) ranged from 22 to 76.8 per 1000 person-years with a median of 53.97 per 1000 person-years (25th percentile = 39.0; 75th percentile = 68.19). No statistically significant effects were found except for inclusion age. (4) Conclusion: We propose that the homogenization and clarification of the definition of what constitutes cognitive impairment are essential to refine the epidemiological understanding of this entity. The results of this review reinforce the importance of adherence to standardized cut-off scores for cognitive tests to promote study comparability.
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Affiliation(s)
- Ricardo Pais
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (L.R.); (O.P.C.); (H.B.)
- Departamento de Epidemiologia Clínica, Medicina Preditiva e Saúde Pública, Faculdade de Medicina da Universidade do Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- Unidade de Saúde Familiar Lusitana, Aces Dão Lafões, A.R.S. Centro, Av. António José Almeida, 3514-511 Viseu, Portugal
- Correspondence: ; Tel.: +351-222-061-820
| | - Luís Ruano
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (L.R.); (O.P.C.); (H.B.)
- Departamento de Epidemiologia Clínica, Medicina Preditiva e Saúde Pública, Faculdade de Medicina da Universidade do Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
- Departamento de Neurologia, Hospital de São Sebastião, Centro Hospitalar de Entre o Douro e Vouga, Rua Cândido Pinho, 4520-211 Santa Maria da Feira, Portugal
| | - Ofélia P. Carvalho
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (L.R.); (O.P.C.); (H.B.)
- Departamento de Epidemiologia Clínica, Medicina Preditiva e Saúde Pública, Faculdade de Medicina da Universidade do Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
| | - Henrique Barros
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Rua das Taipas, n° 135, 4050-600 Porto, Portugal; (L.R.); (O.P.C.); (H.B.)
- Departamento de Epidemiologia Clínica, Medicina Preditiva e Saúde Pública, Faculdade de Medicina da Universidade do Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
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12
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Olakehinde O, Adebiyi A, Siwoku A, Mkenda S, Paddick SM, Gray WK, Walker RW, Dotchin CL, Mushi D, Ogunniyi A. Managing dementia in rural Nigeria: feasibility of cognitive stimulation therapy and exploration of clinical improvements. Aging Ment Health 2019; 23:1377-1381. [PMID: 30246561 DOI: 10.1080/13607863.2018.1484883] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Objectives: We investigated the feasibility and clinical impact of a psychosocial intervention, Cognitive Stimulation Therapy (CST), to help manage dementia in a rural setting in Nigeria. Method: People with dementia were identified from a prevalence study in Lalupon in the south-west of Nigeria. Prior to this feasibility study CST was adapted for the setting and pilot by our team. Fourteen sessions of CST were provided over a 7-week period by a trained nurse specialist and occupational therapist. Change in quality of life was the main outcome. Results: Nine people were enrolled in CST. Significant improvements in cognitive function, quality of life (physical, psychosocial and environmental domains), physical function, neuro-psychiatric symptoms and carer burden were seen. Conclusions: CST appears to be feasible in this setting, although adaptation for low literacy levels, uncorrected visual and hearing impairment and work and social practices is needed. The clinical improvements seen were encouraging.
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Affiliation(s)
- Olaide Olakehinde
- a Institute for Health and Society, University College Hospital, University of Ibadan , Ibadan , Nigeria
| | - Akinpelu Adebiyi
- a Institute for Health and Society, University College Hospital, University of Ibadan , Ibadan , Nigeria
| | - Akeem Siwoku
- a Institute for Health and Society, University College Hospital, University of Ibadan , Ibadan , Nigeria
| | - Sarah Mkenda
- b Institute for Health and Society,Kilimanjaro Christian Medical University College , Moshi , Tanzania
| | - Stella-Maria Paddick
- c Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital , North Shields , UK.,d Institute of Neuroscience, Newcastle University , Newcastle upon Tyne , UK
| | - William K Gray
- c Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital , North Shields , UK
| | - Richard W Walker
- c Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital , North Shields , UK.,e Institute of Health and Society, Newcastle University , Newcastle upon Tyne , UK
| | - Catherine L Dotchin
- c Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital , North Shields , UK.,f Institute for Ageing, Newcastle University , Newcastle upon Tyne , UK
| | - Declare Mushi
- b Institute for Health and Society,Kilimanjaro Christian Medical University College , Moshi , Tanzania
| | - Adesola Ogunniyi
- a Institute for Health and Society, University College Hospital, University of Ibadan , Ibadan , Nigeria
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13
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PESSOA REBECAMENDESP, BOMFIM ANAJULIAL, FERREIRA BIANCALCAVALMORETTI, CHAGAS MARCOSHORTESN. Diagnostic criteria and prevalence of mild cognitive impairment in older adults living in the community: a systematic review and meta-analysis. ARCH CLIN PSYCHIAT 2019. [DOI: 10.1590/0101-60830000000197] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
| | | | | | - MARCOS HORTES N. CHAGAS
- University of São Paulo, Brazil; Federal University of São Carlos, Brazil; Federal University of São Carlos, Brazil
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14
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Adeloye D, Auta A, Ezejimofor M, Oyedokun A, Harhay MO, Rudan I, Chan KY. Prevalence of dementia in Nigeria: a systematic review of the evidence. JOURNAL OF GLOBAL HEALTH REPORTS 2019; 3. [PMID: 31528708 DOI: 10.29392/joghr.3.e2019014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Background The burden of dementia is poorly understood in Nigeria. We sought to gather available epidemiologic evidence on dementia in Nigeria to provide country-wide estimates of its prevalence and associated risks. Methods We searched MEDLINE, EMBASE, Global Health, Africa Journals Online (AJOL) and Google Scholar for epidemiologic studies on dementia in Nigeria from 1990 to 2018. We pooled crude estimates using random effects meta-analysis. A meta-regression epidemiologic model, using the United Nations demographics for Nigeria, was used to estimate the absolute number of people living with dementia in Nigeria in 1995 and 2015. Results Our searches returned 835 studies, of which nine were selected. These included 10 820 individuals with a median age of 74.4 years. Heterogeneity (I 2 =98.8%, P<0.001) was high across studies. Five studies were conducted in the South-west, and four studies were rated as high quality. The pooled crude prevalence of dementia in Nigeria was 4.9% (95% CI: 3.0-6.9) with prevalence significantly higher in women (6.7%, 3.6-9.9) compared to men (3.1%, 1.2-5.0). Age 80+ (odds ratio (OR) 1.6, 1.3-1.9), female sex (OR 2.2, 1.4-3.4) and BMI ≤18.5 (OR 3.5, 1.2-10.1) were significant risks for dementia in Nigeria. Using our epidemiologic model, we estimated that the number of dementia cases increased by over 400% over a 20-year period, increasing from 63 512 in 1995 to 318 011 in 2015 among persons aged ≥60 years. Conclusion Our findings suggest the prevalence and cases of dementia have increased in Nigeria over the last two decades. Population-wide response to dementia is lacking.
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Affiliation(s)
- Davies Adeloye
- Centre for Global Health Research, Usher Institute, University of Edinburgh, UK.,RcDavies Evidence-based Medicine, Lagos, Nigeria
| | - Asa Auta
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Fylde Road, Preston, UK
| | | | - Ayo Oyedokun
- Department of Elderly Medicine, Salisbury District Hospital, Odstock Road, Salisbury, UK
| | - Michael O Harhay
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine University of Pennsylvania Philadelphia, Pennsylvania, USA.,Palliative and Advanced Illness Research (PAIR) Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Igor Rudan
- Centre for Global Health Research, Usher Institute, University of Edinburgh, UK
| | - Kit Yee Chan
- Centre for Global Health Research, Usher Institute, University of Edinburgh, UK
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15
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Nawagi F, Söderberg M, Berggren V, Midlöv P, Ajambo A, Nakasujja N. Sociodemographic Characteristics and Health Profile of the Elderly Seeking Health Care in Kampala, Uganda. Curr Gerontol Geriatr Res 2018; 2018:4147509. [PMID: 29861722 PMCID: PMC5976942 DOI: 10.1155/2018/4147509] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 04/11/2018] [Indexed: 12/14/2022] Open
Abstract
Aging entails health challenges globally, but pertinent data from low-income countries like Uganda remains scarce. A cross-sectional study was carried out at Mulago National Referral Hospital in Kampala, among 134 patients (38% men and 62% women) aged ≥60 years. Data was collected on sociodemographic characteristics, medical disorders, cognitive function, hearing handicap, and functional status, that is, Basic Activities of Daily Living (BADL) and Instrumental Activities of Daily Living (IADL). The participants had high independency in BADL (89%) and IADL (75%). The most common medical conditions were bone/joint pain (35%), hypertension (24%), and visual problems (20%). More women (54%) than men (37%) reported bone and joint pain. The majority (80%) of the participants did not report any hearing handicap, and half (54%) did not have any cognitive impairment. Dependency in IADL was associated with advanced age, being female, and being financially dependent, and the risk of having a hearing handicap was higher among those above the median age (68 years). In adjusted models, the effects remained similar although statistical significance was only achieved for advanced age versus dependency in IADL (RR: 2.38, 95% CI: 1.12-5.08) and hearing handicap (RR: 2.67, 95% CI: 1.17-6.12). Thus, socioeconomic status and gender are relevant aspects when attempting to understand the health profile of the elderly in Kampala, Uganda.
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Affiliation(s)
- Faith Nawagi
- Euclid University Global Health Institute, Washington, DC, USA
| | - Martin Söderberg
- Faculty of Social Sciences, Child Rights Institute, Lund University, Lund, Sweden
| | - Vanja Berggren
- Research Group Clinical Health Promotion, Department of Health Sciences, Faculty of Medicine, Lund University, Lund, Sweden
| | - Patrik Midlöv
- Center for Primary Health Care Research, Lund University, Lund, Sweden
| | - Aidah Ajambo
- Makerere University-Johns Hopkins Research Collaboration, PMTCT Program, Kampala, Uganda
| | - Noeline Nakasujja
- Department of Psychiatry, Makerere University, College of Health Sciences, Kampala, Uganda
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16
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Ogunniyi A, Adebiyi AO, Adediran AB, Olakehinde OO, Siwoku AA. Prevalence estimates of major neurocognitive disorders in a rural Nigerian community. Brain Behav 2016; 6:e00481. [PMID: 27458545 PMCID: PMC4951621 DOI: 10.1002/brb3.481] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 03/15/2016] [Accepted: 03/18/2016] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVE There is paucity of information on major neurocognitive disorders in sub-Saharan Africa where the number of individuals with neurocognitive disorders is expected to increase due to demographic transition. This study aims to report on the prevalence estimates of dementia and MCI (mild cognitive impairment) in a rural community in southwest Nigeria. MATERIALS AND METHODS This was a two-stage cross-sectional study of persons aged 65 years and above resident in Lalupon community, Oyo State. The Identification and IDEA (Intervention for Dementia in Elderly Africans) Study Questionnaire was used for initial screening by trained community health care workers, utilized followed by cognitive assessment using the validated IDEA cognitive screen. Functional and cognitive assessment of selected individuals was carried out during the second stage. Information obtained was used for consensus diagnosis and participants were categorized into normal, MCI and dementia using standard criteria. RESULTS Six hundred and thirteen participants completed the study with 111 (18.1%) diagnosed as MCI while 17 (2.8%) had dementia. The age-adjusted prevalence estimates were 18.4% (95% CI: 14.9-21.9%) and 2.9% (95% CI 1.6-4.4%) for MCI and dementia, respectively. Probable Alzheimer's disease and amnestic MCI predominated. Individuals with dementia were older than both MCI and normal cases while those with MCI had significantly fewer years of schooling than the other diagnostic categories. CONCLUSION Almost one out of five older persons in Lalupon community had major neurocognitive impairment with MCI being six-times more common than dementia. Alzheimer's disease was the most common dementia sub-type.
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Affiliation(s)
- Adesola Ogunniyi
- Department of Medicine College of Medicine University of Ibadan Ibadan Nigeria
| | - Akindele O Adebiyi
- Department of Community Medicine College of Medicine University of Ibadan Ibadan Nigeria
| | - Ade B Adediran
- Department of Community Medicine College of Medicine University of Ibadan Ibadan Nigeria
| | - Olaide O Olakehinde
- Department of Medicine College of Medicine University of Ibadan Ibadan Nigeria
| | - Akeem A Siwoku
- Department of Psychiatry College of Medicine University of Ibadan Ibadan Nigeria
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