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Yu R, Lai D, Leung G, Tong C, Woo J. Using cardiorespiratory fitness to operationalize vitality: a path analysis on the hierarchical structure of intrinsic capacity. J Nutr Health Aging 2024; 28:100300. [PMID: 38908298 DOI: 10.1016/j.jnha.2024.100300] [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: 04/17/2024] [Revised: 05/31/2024] [Accepted: 06/12/2024] [Indexed: 06/24/2024]
Abstract
BACKGROUND There is a lack of consensus about the operationalization of vitality, which is one of the intrinsic capacity (IC) domains. In particular, no study has investigated whether cardiorespiratory fitness (CRF) can be considered a vitality indicator. OBJECTIVE To examine whether vitality is the upstream domain of IC, and establish the validity of CRF as a vitality indicator, using maximal oxygen consumption (VO2 max) as a representative. METHODS 561 older adults from a longitudinal cohort study were included. Variables under consideration were VO2 max, other IC domains, instrumental activities of daily living (IADL), and handgrip strength, which was considered an already validated indicator of vitality. Using handgrip strength as the reference point, path analyses were performed to examine whether VO2 max followed a similar hierarchical structure in predicting change in IADL difficulty through other IC domains. RESULTS The mean age of the participants was 75.5 years. The path model in which vitality was measured by VO2 max demonstrated adequate fit, which was similar to the model in which vitality was measured by handgrip strength. Regarding the path coefficients, the model using VO2 max demonstrated significant total and indirect effects. Notably, the indirect effect was due to the locomotor domain (standardized coefficient = -0.148, p < .001), but not the cognitive or psychological domain. CONCLUSION Vitality is the upstream domain of IC. VO2 max can be considered an indicator to operationalize the vitality concept.
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Affiliation(s)
- Ruby Yu
- The Chinese University of Hong Kong, Hong Kong.
| | - Derek Lai
- The Chinese University of Hong Kong, Hong Kong
| | - Grace Leung
- The Chinese University of Hong Kong, Hong Kong
| | | | - Jean Woo
- The Chinese University of Hong Kong, Hong Kong
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Tan F, Wei X, Zhang J, Zhao Y, Tong X, Michel JP, Shao R, Gong E. The assessment and detection rate of intrinsic capacity deficits among older adults: a systematic review and meta-analysis. BMC Geriatr 2024; 24:485. [PMID: 38831281 PMCID: PMC11149255 DOI: 10.1186/s12877-024-05088-w] [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: 03/24/2024] [Accepted: 05/17/2024] [Indexed: 06/05/2024] Open
Abstract
BACKGROUND Assessing and monitoring intrinsic capacity (IC) is an effective strategy to promote healthy ageing by intervening early in high-risk populations. This review systematically analyzed the global detection rates of IC deficits and explored variations across diverse populations and data collection methods. METHODS This study was preregistered with PROSPERO, CRD42023477315. In this systematic review and meta-analysis, we systematically searched ten databases from January 2015 to October 2023, for peer-reviewed, observational studies or baseline survey of trials that assessed IC deficits among older adults aged 50 and above globally following the condition, context and population approach. The main outcome was intrinsic capacity deficits which could be assessed by any tools. Meta-analyses were performed by a random-effect model to pool the detection rates across studies and subgroup analyses were conducted by populations and data collection methods. RESULTS Fifty-six studies conducted in 13 countries were included in the review and 44 studies with detection rates of IC were included in the meta-analysis. The pooled detection rate of IC deficits was 72.0% (65.2%-78.8%) and deficits were most detected in sensory (49.3%), followed by locomotion (40.0%), cognition (33.1%), psychology (21.9%), and vitality (20.1%). Variations in detection rates of IC deficits were observed across studies, with higher rates observed in low- and middle-income countries (74.0%) and hyper-aged societies (85.0%). Study population and measurement tools also explained the high heterogeneity across studies. CONCLUSION IC deficits are common among older adults, while heterogeneity exists across populations and by measurement. Early monitoring with standardized tools and early intervention on specific subdomains of IC deficits are greatly needed for effective strategies to promote healthy ageing.
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Affiliation(s)
- Fangqin Tan
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, 31, Beijige 3 Aly, Dongcheng District, Beijing, China
| | - Xiaoxia Wei
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, 31, Beijige 3 Aly, Dongcheng District, Beijing, China
| | - Ji Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, 31, Beijige 3 Aly, Dongcheng District, Beijing, China
| | - Yihao Zhao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, 31, Beijige 3 Aly, Dongcheng District, Beijing, China
| | - Xunliang Tong
- Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Centre of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Jean-Pierre Michel
- University of Geneva, Geneva, Switzerland
- French Academy of Medicine, Paris, France
| | - Ruitai Shao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, 31, Beijige 3 Aly, Dongcheng District, Beijing, China.
- State Key Laboratory of Respiratory Health and Multimorbidity, Chinese Academy of Medical Sciences & Peking Union Medical College, 31, Beijige 3 Aly, Dongcheng District, Beijing, China.
| | - Enying Gong
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, 31, Beijige 3 Aly, Dongcheng District, Beijing, China.
- State Key Laboratory of Respiratory Health and Multimorbidity, Chinese Academy of Medical Sciences & Peking Union Medical College, 31, Beijige 3 Aly, Dongcheng District, Beijing, China.
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Rico CLV, Quirarte NHG, Ortiz LGC, Hidalgo HC, Valderrama SMC, Rayas LF. Factors Associated with the Deterioration of Intrinsic Capacity among Older Adults in Mexico and Colombia. Ann Geriatr Med Res 2024; 28:156-163. [PMID: 38475665 PMCID: PMC11217656 DOI: 10.4235/agmr.23.0182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Intrinsic capacity (IC) is defined as "all the physical and mental attributes possessed by the older person." This concept has gained momentum in recent years because it provides insights into the changes in the functional capacity of individuals during their life. This study examined common factors associated with IC decline among older adults in Mexico and Colombia. METHODS This cross-sectional, correlational study included 348 community-dwelling older adults. Sociodemographic, clinical, and family conditions were assessed as possible associated factors, and IC was analyzed across five domains: cognitive, locomotor, psychological, vitality (malnutrition through deficiency and excess), and sensory (visual and auditory). Parametric and non-parametric statistical analyses were performed. RESULTS The common factors associated with impairment according to domain were family dysfunctionality (cognitive domain); myocardial infarction, family dysfunctionality, age >80 years, home occupation, and not having a partner (locomotor domain); dysfunctional family and risk of falls (psychological domain); age >80 years and not having a partner (malnutrition by deficiency domain); age 60-79 years, walking <7,500 steps/day, and peripheral vascular disease (malnutrition by excess domain); risk of falling and being female (visual sensory domain); risk of falling (auditory sensory domain); and dysfunctional family and risk of falling (total intrinsic capacity). CONCLUSION Both populations had common sociodemographic, clinical, and familial factors that directly affected total IC stocks and their domains.
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Chang YH, Lin CY, Chou YT, Chen HY, Su HC, Wu YL, Yang YC, Hou WH. A simple scoring algorithm based on intrinsic capacity for functional ability in community-dwelling older adults in Taiwan. BMC Geriatr 2024; 24:370. [PMID: 38664604 PMCID: PMC11044441 DOI: 10.1186/s12877-024-04969-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 04/12/2024] [Indexed: 04/29/2024] Open
Abstract
BACKGROUND Intrinsic capacity (IC) is a comprehensive indicator of the overall well-being of older adults, and assessing of IC can help identify early stage of disability and tailor intervention to individual needs. However, there is a lack of effective and simple IC assessment tools. This study aimed to establish predictive scoring algorithms of IC to identify older adults at high risk of impaired functional ability. METHODS We conducted a cross-sectional study in Southern Taiwan, measuring IC using 7 subitems: cognition, locomotion, vitality, vision, hearing, psychological well-being, and medication usage were measured. Functional ability outcomes included frailty, basic activities of daily living, and instrumental activities of daily living (IADL). The capability of 7 domains of IC in predicting functional ability was assessed by multivariable logistic regression. The prediction of capability of scoring algorithms was indicated by receiver operating characteristic (AUC) curves and measures of sensitivity and specificity. RESULTS A total of 1,152 older adults were recruited and analyzed. Locomotion emerged as a significant predictor of IADL disability and worsening frailty. The IC-based weighted scoring algorism for predicting IADL demonstrated satisfactory capability (AUC: 0.80), as did the algorithm for predicting worsening frailty (AUC: 0.90). The optimal cutoff points for predicting IADL disability and frailty worse were estimated respectively at 13 and 16, with sensitivity/specificity values of 0.74/0.75 for the IADL prediction algorithm and 0.92/0.77 for the frailty prediction algorithm. CONCLUSION Our 7-domain IC screening tool proves to be sensitive and practical for early identification of functional disability and frailty among community-dwelling older adults in Taiwan.
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Affiliation(s)
- Ya-Hui Chang
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Ying Lin
- Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Tsung Chou
- Department of Health Management Center, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
- Department of Family Medicine, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Hung-Yu Chen
- Department of Health Management Center, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
- Department of Family Medicine, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Hui-Chen Su
- Department of Neurology, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Lin Wu
- Department of Nursing, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Ching Yang
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Family Medicine, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Hsuan Hou
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
- Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital, Taipei, Taiwan.
- Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan.
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Hreha K, Samper-Ternent R, Whitson HE, Downer LP, West JS, Downer B. The Association of Vision and Hearing Impairment on Cognitive Function and Loneliness: Evidence From the Mexican Health and Aging Study. J Aging Health 2024:8982643241247583. [PMID: 38621720 DOI: 10.1177/08982643241247583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Objectives: We investigated whether self-reported vision and hearing were associated with cognitive function and loneliness among Mexican adults aged 50 and older. Methods: Mexican Health and Aging Study data. Vision/hearing status was self-reported (excellent-very good, good, fair-poor). Cognition was measured using nine tasks. Loneliness was measured using the UCLA Loneliness Scale. Analyses controlled for demographic and health characteristics. Results: Among 12,353 participants (mean age = 67, 58% female), poor vision, but not hearing, was associated with lower global cognition (β = -0.03, p < .05). Poor vision (OR = 1.57, 95% CI = 1.30-1.91) and hearing (OR = 1.35, 95% CI = 1.14-1.61) were associated with higher odds of being lonely after adjusting for demographics and comorbidities, but not when adjusting for limitations in daily activities and depressive symptoms. Discussion: Poor vision is a potentially modifiable risk factor for lower cognition and loneliness among Mexican adults. These associations are partly due to functional characteristics of older adults with poor vision.
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Affiliation(s)
- K Hreha
- Occupational Therapy Doctorate Division, Department of Orthopaedic Surgery, School of Medicine, Duke University, Durham, NC, USA
| | - R Samper-Ternent
- Department of Management, Policy and Community Health, School of Public Health, UT Health Houston, Houston, TX, USA
| | - H E Whitson
- Division of Geriatrics, Department of Medicine, Duke University, Durham, NC, USA
| | - L P Downer
- Office of Planning and Innovation, Harris County Public Health, Houston, TX, USA
| | - J S West
- Department of Head and Neck Surgery & Communication Sciences, Duke University, Durham, NC, USA
| | - B Downer
- Sealy Center on Aging, University of Texas Medical Branch, Galveston, TX, USA
- Department of Population Health and Health Disparities, School of Public and Population Health, University of Texas Medical Branch, Galveston, TX, USA
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Huang ZT, Lai ETC, Luo Y, Woo J. Social determinants of intrinsic capacity: A systematic review of observational studies. Ageing Res Rev 2024; 95:102239. [PMID: 38382677 DOI: 10.1016/j.arr.2024.102239] [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: 11/22/2023] [Revised: 02/07/2024] [Accepted: 02/17/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND The World Health Organization defined healthy ageing as the maintenance of functional ability with ageing. Intrinsic capacity is a measurement of healthy ageing, and can be shaped by social determinants. However, an overall understanding of how multiple social determinants contribute to intrinsic capacity remains unclear. We aim to summarize observational studies investigating the relationships between social determinants and intrinsic capacity among community-dwelling adults. METHODS A systematic search was conducted through Medline, Embase, PsycInfo, Web of Science, and CINAHL until August 14, 2023. RESULTS After reviewing 813 articles, we included 21 studies from nine countries in Asia, Europe, and America. Seventeen studies used a cross-sectional design and the others were longitudinal studies. Social determinants related to intrinsic capacity can be classified into five domains, containing socioeconomic status (16, 76.2% of studies), lifestyles (14, 66.7%), psychosocial factors (9, 42.9%), material circumstances (4, 19.0%), and healthcare systems (1, 4.8%). Strong evidence supported that better intrinsic capacity was associated with higher education, higher wealth, more physical activities, no smoking, more social engagement, and being married or partnered. The relationships of intrinsic capacity with dietary patterns and alcohol drinking were contradictory across studies. Research on the associations of working status, housing environments, and healthcare accessibility with intrinsic capacity was insufficient to draw conclusions. CONCLUSION These findings highlight roles of socioeconomic status, lifestyles, and psychosocial factors in improving intrinsic capacity thus promoting healthy ageing. Future research is needed to investigate causal relationships between social determinants and intrinsic capacity, especially material circumstances and healthcare systems.
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Affiliation(s)
- Zi-Ting Huang
- Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
| | - Eric T C Lai
- Institute of Health Equity, The Chinese University of Hong Kong, Hong Kong, China
| | - Yan Luo
- School of Data Science, City University of Hong Kong, Hong Kong, China
| | - Jean Woo
- Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China; Institute of Health Equity, The Chinese University of Hong Kong, Hong Kong, China; Jockey Club Institute of Ageing, The Chinese University of Hong Kong, Hong Kong, China
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Solis-López S, Gutiérrez-Torres A, López-Valdés A, Ávila-Funes JA, García-Peña C, Lawlor B, Romero-Ortuno R. Age-friendly initiatives: Mexico. J Nutr Health Aging 2024; 28:100007. [PMID: 38267158 DOI: 10.1016/j.jnha.2023.100007] [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: 11/27/2023] [Accepted: 12/02/2023] [Indexed: 01/26/2024]
Abstract
While the implementation of these initiatives varies globally and continues to face low uptake in the global south, it is crucial to underscore key ongoing efforts, particularly in developing nations. This allows us to have knowledge about progress and identify areas that require more effective strategies to advance the cause of global healthy aging. The aim of this mini-review was to describe some of the key age-friendly initiatives made in Mexico through Governmental and Non-Governmental entities to promote healthy aging, at different levels of health and social institutions, covering the healthcare systems, community, and education.
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Affiliation(s)
- Sara Solis-López
- Global Brain Health Institute, Trinity College Dublin, Dublin, Ireland.
| | | | | | - José Alberto Ávila-Funes
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico; Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR 1219, F-33000 Bordeaux, France
| | | | - Brian Lawlor
- Global Brain Health Institute, Trinity College Dublin, Dublin, Ireland
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Ramírez‐Vélez R, Iriarte‐Fernández M, Santafé G, Malanda A, Beard JR, Garcia‐Hermoso A, Izquierdo M. Association of intrinsic capacity with incidence and mortality of cardiovascular disease: Prospective study in UK Biobank. J Cachexia Sarcopenia Muscle 2023; 14:2054-2063. [PMID: 37434422 PMCID: PMC10570093 DOI: 10.1002/jcsm.13283] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 05/28/2023] [Accepted: 06/11/2023] [Indexed: 07/13/2023] Open
Abstract
BACKGROUND The World Health Organization proposed the concept of intrinsic capacity (IC; the composite of all the physical and mental capacities of the individual) as central for healthy ageing. However, little research has investigated the interaction and joint associations of IC with cardiovascular disease (CVD) incidence and CVD mortality in middle- and older-aged adults. METHODS Using data from 443 130 UK Biobank participants, we analysed seven biomarkers capturing the level of functioning of five domains of IC to calculate a total IC score (ranging from 0 [better IC] to +4 points [poor IC]). Associations between IC score and incidence of six long-term CVD conditions (hypertension, stroke/transient ischaemic attack stroke, peripheral vascular disease, atrial fibrillation/flutter, coronary artery disease and heart failure), and grouped mortality from these conditions were estimated using Cox proportional models, with a 1-year landmark analysis to triangulate the findings. RESULTS Over 10.6 years of follow-up, CVD morbidity grouped (n = 384 380 participants for the final analytic sample) was associated with IC scores (0 to +4): mean hazard ratio (HR) [95% confidence interval, CI] 1.11 [1.08-1.14], 1.20 [1.16-1.24], 1.29 [1.23-1.36] and 1.56 [1.45-1.59] in men (C-index = 0.68), and 1.17 [1.13-1.20], 1.30 [1.26-1.36], 1.52 [1.45-1.59] and 1.78 [1.67-1.89] in women (C-index = 0.70). In regard to mortality, our results indicated that the higher IC score (+4 points) was associated with a significant increase in subsequent CVD mortality (mean HR [95% CI]: 2.10 [1.81-2.43] in men [C-index = 0.75] and 2.29 [1.85-2.84] in women [C-index = 0.78]). Results of all sensitivity analyses by full sample, sex and age categories were largely consistent independent of major confounding factors (P < 0.001). CONCLUSIONS IC deficit score is a powerful predictor of functional trajectories and vulnerabilities of the individual in relation to CVD incidence and premature death. Monitoring an individual's IC score may provide an early-warning system to initiate preventive efforts.
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Affiliation(s)
- Robinson Ramírez‐Vélez
- NavarrabiomedHospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNAPamplonaSpain
- CIBER of Frailty and Healthy Aging (CIBERFES)Instituto de Salud Carlos IIIMadridSpain
| | - Maria Iriarte‐Fernández
- NavarrabiomedHospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNAPamplonaSpain
| | - Guzman Santafé
- Department of Statistics, Computer Science, and MathematicsUniversidad Pública de Navarra (UPNA)PamplonaSpain
- InaMatUniversidad Pública de Navarra (UPNA)PamplonaSpain
| | - Armando Malanda
- Department of Electrical and Electronic EngineeringUniversidad Pública de Navarra (UPNA)PamplonaSpain
| | - John R. Beard
- Columbia Aging CenterColumbia UniversityNew YorkNYUSA
| | - Antonio Garcia‐Hermoso
- NavarrabiomedHospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNAPamplonaSpain
| | - Mikel Izquierdo
- NavarrabiomedHospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), IdiSNAPamplonaSpain
- CIBER of Frailty and Healthy Aging (CIBERFES)Instituto de Salud Carlos IIIMadridSpain
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Yeverino-Castro SG, Garza-Guerra JD, Aguilar-Díaz GE, González-Galván CR, Salinas-Martínez R, Morales-Delgado R. Cognition in older adults with healthy aging: analysis of the Mexican Health and Aging Study 2012-2015. Front Med (Lausanne) 2023; 10:1207063. [PMID: 37484850 PMCID: PMC10361761 DOI: 10.3389/fmed.2023.1207063] [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: 04/17/2023] [Accepted: 06/13/2023] [Indexed: 07/25/2023] Open
Abstract
Introduction Maintaining older adults' health and well-being can be achieved through the optimization of physical and mental health, while preserving independence, social participation, and quality of life. Cognitive change has been described as a normal process of aging and it involves domains such as processing speed, attention, memory, language, visuospatial abilities, and executive functioning, among others. Objective To describe cognitive changes in older adults with healthy aging. Methods This is a study that involved data from 14,893 and 14,154 individuals aged >60 years or older from the 2012 and 2015 waves, respectively, who participated in the Mexican Health and Aging Study (MHAS). Participants with healthy aging were identified and described in the MHAS-2012 wave and followed to 2015. Eight cognitive domains evaluated in the Cross-Cultural Cognitive Evaluation (CCCE,) as well as sociodemographic and health characteristics, were described. Criteria for healthy aging involved the following: CCCE ≥ -1.5 standard deviations above the mean on reference norms, independence on basic and instrumental activities of daily living, self-reported "life close to ideal," and preserved functional and social performance. Results From a total of n = 9,160 older adults from the MHAS-2012 wave, n = 1,080 (11.8%) had healthy aging. In the healthy aging group, the median age was 67 years (IQR: 63-73), 58.1% were female and the median for education was 6 (IQR: 3-8) years. The mean CCCE score was 57 (SD: 16.9) points. In the MHAS-2012 cross-sectional analysis, except for orientation, visuospatial abilities, and verbal fluency, all cognitive domain scores were lower with passing age. When comparing cognitive domain scores in the 225 older adults identified with healthy aging between the 2012 and 2015 MHAS waves, there were almost no observable differences. Conclusion In the cross-sectional analysis, Mexican adults with healthy aging had lower scores in the verbal learning memory, visual scanning, numeracy, visual memory, and verbal recall domains', as well as lower global cognitive scores in the higher age groups. There were no cognitive changes in the 3 year follow-up, except for a lower gradient of scores in the verbal recall memory domain. Longer prospective studies are needed to characterize greater cognitive changes.
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Affiliation(s)
- Sara G. Yeverino-Castro
- Universitary Hospital “Dr. José E. González”, Geriatric Service, Universidad Autónoma de Nuevo León, Monterrey, Mexico
- CHRISTUS Center of Excellence and Innovation, San Pedro Garza García, Mexico
| | - José D. Garza-Guerra
- Universitary Hospital “Dr. José E. González”, Geriatric Service, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Gabriela E. Aguilar-Díaz
- Universitary Hospital “Dr. José E. González”, Geriatric Service, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Célica R. González-Galván
- Universitary Hospital “Dr. José E. González”, Geriatric Service, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Ricardo Salinas-Martínez
- Universitary Hospital “Dr. José E. González”, Geriatric Service, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Rocío Morales-Delgado
- Universitary Hospital “Dr. José E. González”, Geriatric Service, Universidad Autónoma de Nuevo León, Monterrey, Mexico
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Jiang YS, Shi H, Kang YT, Shen J, Li J, Cui J, Pang J, Zhang C, Zhang J. Impact of age-friendly living environment and intrinsic capacity on functional ability in older adults: a cross-sectional study. BMC Geriatr 2023; 23:374. [PMID: 37328844 PMCID: PMC10276510 DOI: 10.1186/s12877-023-04089-5] [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: 09/04/2022] [Accepted: 06/02/2023] [Indexed: 06/18/2023] Open
Abstract
BACKGROUND The World Health Organization (WHO) has proposed healthy aging framework, supposing that intrinsic capacity (IC), environment and their interaction may have influence on functional ability (FA). It was still unclear how the IC level and age-friendly living environment impact on FA. This study aims to confirm the relationship between the IC level and age-friendly living environment with FA, especially in older adults with low IC. METHODS Four hundred eighty-five community-dwelling residents aged ≥ 60 years were enrolled. IC constructed by locomotion, cognition, psychological, vitality, and sensory domains was assessed using full assessment tools recommended by WHO. Age-friendly living environment was measured with 12 questions adapted from the spatial indicators framework of age-friendly cities. FA was assessed using activities of daily living (ADL) and one question about mobile payment ability. Multivariate logistic regression was used to explore the association between IC, environment and FA. The influence of the environment on electronic payment and ADL under the IC layer was assessed. RESULTS Of 485 respondents, 89 (18.4%) had ADL impairment, and 166 (34.2%) had mobile payment function impairment. Limited IC (odds ratio [OR] = 0.783, 95% confidence interval [CI] = 0.621-0.988) and poor environment (OR = 0.839, 95% CI = 0.733-0.960) were associated with mobile payment ability impairment. Our results suggested that a supportive age-friendly living environment influenced FA was more prominent in older adults with poor IC (OR = 0.650, 95% CI = 0.491-0.861). CONCLUSIONS Our results confirmed IC and the environment had an impact on mobile payment ability. The relationship between environment and FA showed differences according to IC level. These findings suggest that an age-friendly living environment is important to maintain and enhance elders' FA, especially in those with poor IC.
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Affiliation(s)
- Yi-Shan Jiang
- School of Nursing, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hong Shi
- Department of Geriatric Medicine, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, NO.1 Da HuaRoad, DongDan, Beijing, 100730, P. R. China
| | - Yu-Ting Kang
- Office of the National Clinical Research Center for Geriatric Diseases, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, P. R. China
| | - Ji Shen
- Department of Geriatric Medicine, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, NO.1 Da HuaRoad, DongDan, Beijing, 100730, P. R. China
| | - Jing Li
- Department of Geriatric Medicine, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, NO.1 Da HuaRoad, DongDan, Beijing, 100730, P. R. China
| | - Ju Cui
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, P. R. China
| | - Jing Pang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, P. R. China
| | - Chi Zhang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, P. R. China
| | - Jie Zhang
- Department of Geriatric Medicine, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, NO.1 Da HuaRoad, DongDan, Beijing, 100730, P. R. China.
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11
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Liang Y, Shang S, Gao Y, Zhai J, Cheng X, Yang C, Zhang R. Measurements of Intrinsic Capacity in Older Adults: A Scoping Review and Quality Assessment. J Am Med Dir Assoc 2023; 24:267-276.e2. [PMID: 36332688 DOI: 10.1016/j.jamda.2022.09.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 09/21/2022] [Accepted: 09/24/2022] [Indexed: 11/05/2022]
Abstract
OBJECTIVES This review summarizes the measurements of intrinsic capacity in 5 domains across different studies and evaluates the quality of research papers. DESIGN Scoping review of papers written in English and Chinese published in peer-reviewed journals. SETTING AND PARTICIPANTS The intrinsic capacity of older adults was assessed using the multidomain structure (Cognition, Locomotion, Psychological, Sensory and Vitality) proposed by the World Health Organization. METHODS We searched PubMed, MEDLINE, and Web of Science for papers in English, and CNKI, CBM for papers written in Chinese published until September 13, 2022. Both cross-sectional and cohort studies of multidomain measurements of intrinsic capacity were included. Three independent reviewers appraised the quality of studies, and Cohen's kappa was calculated to determine interrater reliability. Data were listed by author, year, setting, country, age range and number of participants, measurement and calculation of intrinsic capacity, and data acquisition method. RESULTS We included 53 studies. Twenty-one studies were of high quality, 31 studies were of moderate quality, and 1 study was of low quality. Measurements of intrinsic capacity and derivation of the summative index score were heterogeneous. Intrinsic capacity was usually assessed in 4 or 5 domains. Sensory was the most frequently overlooked domain or subdivided into vision and hearing in some studies. Indicators of vitality were the most heterogeneous. We also found consistency in heterogeneous measurements. The most common measurements of cognition, locomotion, and psychological capacity were the Mini-Mental State Examination, Short Physical Performance Battery, and Geriatric Depression Scale respectively. Self-reported questionnaires were commonly adopted in sensory domain. The Mini-Nutritional Assessment and grip strength were the most measured indicators of vitality. CONCLUSIONS AND IMPLICATIONS The focus on capacity and disease should be balanced to better promote healthy aging in older adults. Heterogeneity of intrinsic capacity measurements underscores the need for consensus about standardized measurements and calculation procedures.
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Affiliation(s)
- Yetian Liang
- The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, PR China
| | | | - Yaxuan Gao
- The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, PR China; Hebei Puai Aged Care Ltd. Co., Shijiazhuang, Hebei Province, PR China
| | - Jiahui Zhai
- The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, PR China
| | - Xiaohan Cheng
- The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, PR China
| | - Chen Yang
- The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, PR China
| | - Ruili Zhang
- The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, PR China.
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12
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Gutierrez-Robledo LM, García-Chanes RE. Editorial: Intrinsic Capacity Trajectories: The Underlying Social and Economic Determinants. J Nutr Health Aging 2023; 27:172-173. [PMID: 36973921 DOI: 10.1007/s12603-023-1896-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Affiliation(s)
- L M Gutierrez-Robledo
- Luis Miguel Gutierrez-Robledo, Researcher in medical Sciences Instituto Nacional de Geriatría, Mexico,
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Tay L, Tay EL, Mah SM, Latib A, Koh C, Ng YS. Association of Intrinsic Capacity with Frailty, Physical Fitness and Adverse Health Outcomes in Community-Dwelling Older Adults. J Frailty Aging 2023; 12:7-15. [PMID: 36629078 PMCID: PMC8966852 DOI: 10.14283/jfa.2022.28] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND Intrinsic capacity (IC) and frailty are complementary in advancing disability prevention through maintaining functionality. OBJECTIVES We examined the relationship between IC and frailty status at baseline and 1-year, and evaluated if IC decline predicts frailty onset among robust older adults. The secondary objectives investigated associations between IC, physical fitness and health-related outcomes. DESIGN Prospective cohort study. SETTING Community-based assessments. PARTICIPANTS Older adults aged>55 years, who were independent in ambulation (walking aids permitted). MEASUREMENTS 5 domains of IC were assessed at baseline: locomotion (Short Physical Performance Battery, 6-minute walk test), vitality (nutritional status, muscle mass), sensory (self-reported hearing and vision), cognition (self-reported memory, age- and education adjusted cognitive performance), psychological (Geriatric Depression Scale-15, self-reported anxiety/ depression). Composite IC (0-10) was calculated, with higher scores representing greater IC. Frailty status was based on modified Fried criteria, with frailty progression defined as incremental Fried score at 1-year. RESULTS 809 participants (67.6+6.8 years) had complete data for all 5 IC domains. 489 (60.4%) participants were robust but only 213 (26.3%) had no decline in any IC domain. Pre-frail and frail participants were more likely to exhibit decline in all 5 IC domains (p<0.05), with decremental composite IC [9 (8-9), 8 (6-9), 5.5 (4-7.5), p<0.001] across robust, prefrail and frail. IC was significantly associated with fitness performance, independent of age and gender. Higher composite IC reduced risk for frailty progression (OR=0.62, 95% CI 0.48-0.80), and reduced frailty onset among robust older adults (OR=0.53, 95% CI 0.37-0.77), independent of age, comorbidities and social vulnerability. Participants with higher IC were less likely to experience health deterioration (OR=0.70, 95% CI 0.58-0.83), falls (OR=0.76, 95% CI 0.65-0.90) and functional decline (OR=0.64, 95% CI 0.50-0.83) at 1-year. CONCLUSION Declining IC may present before frailty becomes clinically manifest, increasing risk for poor outcomes. Monitoring of IC domains potentially facilitates personalized interventions to avoid progressive frailty.
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Affiliation(s)
- Laura Tay
- Geriatric Medicine, Department of General Medicine, Sengkang General Hospital, 110 Sengkang East Way, Singapore, 544886 Singapore ,Geriatric Education and Research Institute, Singapore, Singapore
| | - E.-L. Tay
- Department of Physiotherapy, Sengkang General Hospital, Singapore, Singapore
| | - S. M. Mah
- Department of Physiotherapy, Sengkang General Hospital, Singapore, Singapore
| | - A. Latib
- Centre for Population Health Research and Implementation, SingHealth, Singapore, Singapore
| | - C. Koh
- Centre for Population Health Research and Implementation, SingHealth, Singapore, Singapore
| | - Y.-S. Ng
- Geriatric Education and Research Institute, Singapore, Singapore ,Department of Rehabilitation Medicine, Singapore General Hospital, Singapore, Singapore
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14
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Sum G, Lau LK, Jabbar KA, Lun P, George PP, Munro YL, Ding YY. The World Health Organization (WHO) Integrated Care for Older People (ICOPE) Framework: A Narrative Review on Its Adoption Worldwide and Lessons Learnt. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:154. [PMID: 36612480 PMCID: PMC9819593 DOI: 10.3390/ijerph20010154] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/06/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
The World Health Organization (WHO) recently published guidelines on the implementation of a new Integrated Care for Older People (ICOPE) framework in 2017-2019. It is an integrated care framework for the screening, assessment, and management of intrinsic capacity (IC) declines. We aimed to examine where the early adopters of ICOPE are across the world, how these study teams and sites plan to apply the framework or have applied it, and the lessons learnt for future adopters. We systematically searched electronic medical and social sciences databases and grey literature published between 31 October 2017 and 31 March 2022. Records were systematically selected using precise inclusion criteria. There were 18 ICOPE study teams and sites across the 29 selected records. Of the 18 study teams and sites, seven were in the development stage, seven conducted feasibility studies, and four have commenced implementation of interventions that applied the ICOPE framework. Future ICOPE adopters may need to make certain decisions. These include whether to adopt ICOPE in the community setting or other settings, whether to adopt only Step 1 on IC screening or additional ICOPE Steps, whether the ICOPE IC screening tool requires modifications, and whether to use digital health technology. We propose the key factors needed to make these decisions and future research needed.
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Affiliation(s)
- Grace Sum
- Geriatric Education and Research Institute, Singapore 768024, Singapore
| | - Lay Khoon Lau
- Geriatric Education and Research Institute, Singapore 768024, Singapore
| | | | - Penny Lun
- Geriatric Education and Research Institute, Singapore 768024, Singapore
| | - Pradeep Paul George
- Geriatric Education and Research Institute, Singapore 768024, Singapore
- National Healthcare Group, Health Services and Outcomes Research, Singapore 138543, Singapore
| | - Yasmin Lynda Munro
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
| | - Yew Yoong Ding
- Geriatric Education and Research Institute, Singapore 768024, Singapore
- Department of Geriatric Medicine & Institute of Geriatrics and Active Ageing, Tan Tock Seng Hospital, Singapore 308433, Singapore
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15
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Muneera K, Muhammad T, Althaf S. Socio-demographic and lifestyle factors associated with intrinsic capacity among older adults: evidence from India. BMC Geriatr 2022; 22:851. [PMID: 36368936 PMCID: PMC9652958 DOI: 10.1186/s12877-022-03558-7] [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] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 10/25/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Since the traditional models missed the possibility of formulating personalised programs centred on a person's priorities and values, it was a pressing priority to shift from traditional disease-centred to a function-based approach of healthy ageing, which is defined as 'the process of developing and maintaining the functional ability that enables well-being in older age'. The present study aimed to assess the prevalence of high intrinsic capacity (IC) of older adults and to examine the socio-demographic and lifestyle factors associated with IC among older adults in India. METHODS The study utilises the individual-level data from the first wave of the Longitudinal Aging Study in India (LASI) conducted during 2017-18. The total sample size for the present study was 24,136 older adults (11,871 males and 12,265 females) aged 60 years and above. Descriptive statistics, along with bivariate analysis, was employed to present the preliminary results. Additionally, multivariable linear and logistic regression analyses were conducted to find out the association of socio-demographic and lifestyle factors with IC and its components. RESULTS The mean IC score was found to be 7.37 (SD = 1.6) in this study. A proportion of 24.56% of older adults was observed to be in the higher IC category. Increasing age was negatively associated with high IC for older men and women. Older people who smoke tobacco (β = -0.23; CI: -0.32--0.13) and chew tobacco (β = -0.11; CI: -0.18--0.03) were less likely to experience high IC compared to their respective counterparts. Older adults who reported episodic alcohol drinking were less likely to have high IC (β = -0.20; CI:-0.32--0.07). The engagement in moderate physical activity (β = 0.12; CI:0.01-0.23), vigorous physical activity (β = 0.12; CI:0.05-0.20) and yoga-related activity (β = 0.18; CI:0.09-0.26) were significantly positively associated with high IC. Among the five domains of IC, education was significantly associated with higher capacity in each domain, and increasing age was found to be a significant predictor of lower capacity in each IC domain except locomotion. Older men and women engaged in vigorous physical activity had 35 and 19% significantly higher odds of high capacity in sensory (aOR = 1.35; CI: 1.12-1.62) and psychological (aOR = 1.19; CI: 1.06-1.34) domains, respectively. CONCLUSIONS The study revealed that lifestyle behaviours including tobacco use, episodic alcohol drinking and physical activity are strongly associated with IC among older adults in India. The findings suggest that healthy lifestyle behaviours should be encouraged among older adults as an effort to improve their IC, which is the key determinant of functional ability and quality of life in later years of life.
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Affiliation(s)
- K. Muneera
- National Institute of Technology, Calicut, 673601 Kerala India
| | - T. Muhammad
- International Institute for Population Sciences, Mumbai, Maharashtra 400088 India
| | - S Althaf
- National Institute of Technology, Calicut, 673601 Kerala India
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16
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Bautmans I, Knoop V, Amuthavalli Thiyagarajan J, Maier AB, Beard JR, Freiberger E, Belsky D, Aubertin-Leheudre M, Mikton C, Cesari M, Sumi Y, Diaz T, Banerjee A. WHO working definition of vitality capacity for healthy longevity monitoring. THE LANCET. HEALTHY LONGEVITY 2022; 3:e789-e796. [PMID: 36356628 PMCID: PMC9640935 DOI: 10.1016/s2666-7568(22)00200-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/18/2022] [Accepted: 08/18/2022] [Indexed: 11/09/2022] Open
Abstract
Intrinsic capacity, a crucial concept in healthy ageing, is defined by WHO as "the composite of all the physical and mental capacities that an individual can draw on at any point in time". Vitality capacity is considered the underlying physiological determinant of intrinsic capacity. To advance the measurement and monitoring of vitality capacity, a working group of WHO staff members and twenty experts representing six WHO regions was convened to discuss and clarify the attributes of vitality capacity and to develop a clear working definition of the concept. Potential biomarkers to measure vitality capacity were identified, and the following consensual working definition was developed: vitality capacity is a physiological state (due to normal or accelerated biological ageing processes) resulting from the interaction between multiple physiological systems, reflected in (the level of) energy and metabolism, neuromuscular function, and immune and stress response functions of the body.
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Affiliation(s)
- Ivan Bautmans
- Gerontology Department and Frailty in Ageing Research Department, Vrije Universiteit Brussel, Brussels, Belgium,Department of Geriatrics, Universitair Ziekenhuis Brussel, Brussels, Belgium,Correspondence to: Prof Ivan Bautmans, Gerontology Department and Frailty in Ageing Research Department, Vrije Universiteit Brussel, Brussels 1090, Belgium
| | - Veerle Knoop
- Gerontology Department and Frailty in Ageing Research Department, Vrije Universiteit Brussel, Brussels, Belgium
| | | | - Andrea B Maier
- Department of Human Movement Sciences, @AgeAmsterdam, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands,Department of Medicine and Aged Care, @AgeMelbourne, The University of Melbourne, The Royal Melbourne Hospital, Parkville, VIC, Australia,Yong Loo Lin School of Medicine, Centre for Healthy Longevity, National University of Singapore, Singapore,National University Health System, Singapore
| | - John R Beard
- Centre of Excellence on Population Ageing Research, University of New South Wales, Sydney, NSW, Australia
| | - Ellen Freiberger
- Institute for Biomedicine of Aging, University of Erlangen-Nuremberg, Nuremberg, Germany
| | - Daniel Belsky
- Social Science Research Institute and Department of Medicine, Duke University School of Medicine, Durham, NC, USA
| | - Mylene Aubertin-Leheudre
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada,Faculty of Sciences, Department of Exercise Sciences, Université du Québec à Montréal, QC, Canada
| | - Christopher Mikton
- Demographic Change and Healthy Aging Unit, Social Determinants of Health, WHO, Geneva, Switzerland
| | | | - Yuka Sumi
- Ageing and Health Unit, WHO, Geneva, Switzerland
| | - Theresa Diaz
- Epidemiology, Monitoring, and Evaluation Units, WHO, Geneva, Switzerland
| | - Anshu Banerjee
- Department of Maternal, Newborn, Child, and Adolescent Health and Ageing, WHO, Geneva, Switzerland
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17
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Koivunen K, Schaap LA, Hoogendijk EO, Schoonmade LJ, Huisman M, van Schoor NM. Exploring the conceptual framework and measurement model of intrinsic capacity defined by the World Health Organization: A scoping review. Ageing Res Rev 2022; 80:101685. [PMID: 35830956 DOI: 10.1016/j.arr.2022.101685] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/16/2022] [Accepted: 07/07/2022] [Indexed: 01/04/2023]
Abstract
WHO has defined intrinsic capacity (IC) as the composite of all physical and mental capacities of an individual covering five subdomains: cognition, locomotion, sensory, vitality, and psychological. Despite this well accepted definition, the conceptual and measurement model of IC remains unclear, which hampers a standardized operationalization of the construct. We performed a scoping review to give a comprehensive overview of the extent to which the current literature of IC addresses and assumes the conceptual framework and measurement model of IC as reflective or formative. For inclusion, we considered all types of articles that were published in peer-reviewed journals except for protocol articles. A systematic search of 6 databases from different disciplines led to the inclusion of 31 papers. We found inconsistency and gaps in the descriptions of IC. Most of the papers did not define the measurement model. In the conceptual background and validation articles, we identified descriptions of both reflective and formative measurement models while in empirical studies applying IC measurements the underlying assumptions remained mainly unclear. Defining a measurement model is not merely a theoretical matter but influences the operationalization and validation processes of the construct. This study raised questions about the most fundamental features of the IC construct and discusses whether IC should be considered as an underlying latent trait of all capacities (reflective construct) or an aggregate summary measure of the subdomain capacities (formative construct).
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Affiliation(s)
- K Koivunen
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, De Boelelaan, 1117, Amsterdam, the Netherlands; Faculty of Sport and Health Sciences and Gerontology Research Center, University of Jyväskylä, Rautpohjankatu 8, P.O. Box 35, FI-40014, Finland.
| | - L A Schaap
- Department of Health Sciences, Faculty of Science, Amsterdam Public Health Research Institute, Amsterdam Movement Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, the Netherlands
| | - E O Hoogendijk
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, De Boelelaan, 1117, Amsterdam, the Netherlands; Amsterdam Public Health Research Institute, Aging & Later Life, Amsterdam, the Netherlands, De Boelelaan 1117, Amsterdam, the Netherlands
| | - L J Schoonmade
- Medical Library, Vrije Universiteit Amsterdam, De Boelelaan 1117, P.O. Box 7057, 1007 MB Amsterdam, the Netherlands
| | - M Huisman
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, De Boelelaan, 1117, Amsterdam, the Netherlands; Amsterdam Public Health Research Institute, Aging & Later Life, Amsterdam, the Netherlands, De Boelelaan 1117, Amsterdam, the Netherlands; Department of Sociology, Vrije Universiteit Amsterdam, De Boelelaan 1105, 1081 HV Amsterdam, the Netherlands
| | - N M van Schoor
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, De Boelelaan, 1117, Amsterdam, the Netherlands; Amsterdam Public Health Research Institute, Aging & Later Life, Amsterdam, the Netherlands, De Boelelaan 1117, Amsterdam, the Netherlands
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Predictors of Successful Memory Aging in Older Mexican Adults. Behav Neurol 2022; 2022:9045290. [PMID: 35795033 PMCID: PMC9252847 DOI: 10.1155/2022/9045290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 05/19/2022] [Accepted: 06/07/2022] [Indexed: 11/25/2022] Open
Abstract
Background Research suggests a significant association between increasing age and memory impairments. Nevertheless, for some individuals, memory performance stays within or above the normative values of younger subjects. This is known as successful memory aging and is associated with specific neurophysiological features and psychological and lifestyle-related variables. To date, little is known about the association between successful memory aging and intrinsic capacity (IC) defined as “the composite of all the physical and mental (including psychosocial) capacities that an individual can draw on at any point in time” and resilience. Hence, the aim of this study was to determine if longitudinal associations between IC and successful memory aging and resilience exist and to find differences in cognitive performance between Mexican older adults with successful memory aging, older adults with average memory, and older adults with memory impairment. Methods Longitudinal data from 590 individuals from the third wave (2012) and the Mex-Cog subsample (2016) of the Mexican Health and Aging Study was analysed. Subjects were classified into 3 groups: (1) older adults with successful memory aging (SUMA), (2) older adults with average memory (AVMA), and (3) older adults with memory impairment (IMA). Cognitive domains of orientation, language, attention, constructional praxis, and executive function were evaluated. IC and resilience were measured using items from the MHAS battery. Analysis of variance and multinomial logistic regressions were used to find differences in IC and resilience across the memory aging groups. Results ANOVAs showed significant differences across the three cognitive performance groups in all cognitive domains. Multinomial logistic regression analyses revealed that respondents with higher scores in the psychological and cognitive domains of IC at baseline were more likely to have successful memory aging in the subsequent wave of the study. More resilient subjects in 2012 were not more likely to become a SUMA in 2016. However, this could be a result of the way resilience was measured. Conclusion Our main findings suggest that intrinsic capacity could be used as a predictor of successful memory aging specifically in the psychological and the cognitive domains. More longitudinal studies are needed to further examine these associations.
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Yu R, Leung J, Leung G, Woo J. Towards Healthy Ageing: Using the Concept of Intrinsic Capacity in Frailty Prevention. J Nutr Health Aging 2022; 26:30-36. [PMID: 35067700 DOI: 10.1007/s12603-021-1715-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVES To examine whether intrinsic capacity (IC) could predict frailty, whether declines in specific domains of IC could lead to frailty, and whether different combinations of domains could represent different risks of developing frailty. SETTING Community. PARTICIPANTS Chinese people aged 65 years and older. MEASUREMENTS Using data from a prospective cohort study, we derived a summary score for IC and scores for the five domains (cognitive, locomotor, vitality, sensory, psychological) for each participant at baseline. Frailty was assessed according to the Fried's frailty phenotype at baseline, 2- and 4-year follow-ups. Participants were classified as frail if they had ≥3 of the following criteria: weight loss, self-rated exhaustion, weakness, slow walking speed, and low physical activity. RESULTS Four thousand participants were interviewed at baseline. Overall mean age was 72.5 years; 50% were women. Between baseline and the 2-year follow-up, 5.7% of non-frail participants developed frailty; between 2- and 4-year follow-ups, 5.7% of non-frail participants developed frailty. The average annual incidence rate of frailty was 2.9%. Higher scores on IC at baseline were associated with a lower risk of incident frailty at both follow-ups (year 2, odds ratio (OR)=0.64, 95% confidence interval (CI)=0.59-0.71); year 4, OR=0.64, 95%CI=0.58-0.71) after adjustment for age, sex, educational level, and chronic diseases. Across the five domains, vitality was the strongest predictor of incident frailty at each follow-up (year 2, OR=0.33, 95%CI=0.24-0.45; year 4, OR=0.33, 95%CI=0.23-0.46). Compared to other combinations of any two domains, having 'high' scores on both vitality and locomotor domains was associated with the lowest risk of incident frailty (year 2, OR=0.11, 95%CI=0.06-0.22, area under the curve (AUC)=0.770; year 4, OR=0.18, 95%CI=0.10-0.32, AUC=0.782). CONCLUSION This study provides evidence that IC was independently associated with incident frailty. It also finds that vitality was the domain most strongly associated with incident frailty. Finally, it suggests that optimizing multiple domains of IC, particularly vitality and locomotor, may prevent frailty.
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Affiliation(s)
- R Yu
- Ruby Yu, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China,
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