Psychometric properties of ability to contribute measurements as a domain of functional ability of older persons: a COSMIN systematic review

Author:

Gutiérrez-Robledo Luis Miguel1,Tella-Vega Pamela1,García-Chanes Rosa Estela1,Lozano-Juárez Luis Raymundo12,Medina-Campos Raúl Hernán1,García-Andrade Salvador3,Escamilla-Núñez Alberto4,Amuthavalli Thiyagarajan Jotheeswaran5,Diaz Theresa5,Mikton Christopher6,García-Peña Carmen1

Affiliation:

1. Instituto Nacional de Geriatría , Ciudad de México , México

2. Global Health Research Departament, Juntendo University , Tokyo , Japan

3. Geriatric deparment, Hospital General ISSSTE , Querétaro , México

4. Instituto Mexicano del Seguro Social Analysis and Synthesis of the Evidence Research Unit, National Medical Center XXI Century, , Mexico City , México

5. World Health Organization Department of Maternal, Newborn, Child, Adolescent Health and Ageing, , Geneva , Switzerland

6. World Health Organization Department of Social Determinants of Health, Division of Healthier Populations, , Geneva , Switzerland

Abstract

Abstract Background Older person’s ability to contribute covers contributions divided into five subdomains: assisting friends and neighbours, mentoring peers and younger people, caring for family, engaging in the workforce and voluntary activity. Objective To evaluate the psychometric properties of ability to contribute measurements as a domain of functional ability of older persons using Consensus-based Standards for the selection of health Measurement Instruments (COSMIN) methodology for systematic reviews. Methods A systematic search was performed in PubMed, Embase and PsycINFO databases, for observational studies published within the last 10 years. The measurement properties of these ability measures were evaluated against the COSMIN taxonomy. Risk-of-bias assessment was performed using the COSMIN Risk of Bias checklist. Results Of the 32,665 studies identified, we selected 19, of which the main purpose was to develop or validate an instrument or have related items that measure at least one of the subdomains. None of the instruments contained items that were fully related to the five subdomains, 60% (n = 12) were related to voluntary activities and 15% (n = 3) to mentoring peers and younger people. As for psychometric properties, two studies assessed content validity. Factor analysis was used to evaluate structural validity in 10 studies. Internal consistency was evaluated in 63% of the instruments and Cronbach’s alpha ranges from 0.63 to 0.92. No study reported predictive validity. A very limited overview of their scope and limitations for their application was observed. Conclusions We found no single instrument measuring all subdomains of ability to contribute. We found several instruments containing items that could indirectly measure some of the subdomains of the ability to contribute.

Publisher

Oxford University Press (OUP)

Subject

Geriatrics and Gerontology,Aging,General Medicine

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