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- Title
Reliability and validity of the German version of the University of Jyvaskyla Active Aging Scale (UJACAS-G).
- Authors
Hinrichs, Timo; Rantanen, Taina; Portegijs, Erja; Nebiker, Lukas; Rössler, Roland; Schwendinger, Fabian; Schmidt-Trucksäss, Arno; Roth, Ralf
- Abstract
Background: The University of Jyvaskyla Active Aging Scale (UJACAS) assesses active aging through willingness, ability, opportunity, and frequency of involvement in activities. Recognizing the lack of a German version, the Finnish original was translated (UJACAS-G). This study aimed: (1) to evaluate the test-retest reliability of UJACAS-G; and (2) to explore correlations with health-related parameters (concurrent validity). Methods: The study (test-retest design) targeted healthy older adults aged 65+. Reliability of UJACAS-G (total and subscores) was assessed using Bland-Altman analyses and Intraclass Correlation Coefficients (ICCs). Furthermore, correlations (Spearman's rho) between UJACAS-G scores and physical function (walking speed, handgrip strength, balance, 6-minute walk distance), physical activity (International Physical Activity Questionnaire), life-space mobility (Life-Space Assessment), and health-related quality of life (Short Form-36 Health Survey) were calculated. Results: Bland-Altman analyses (N = 60; mean age 72.3, SD 5.9 years; 50% women) revealed mean differences close to zero and narrow limits of agreement for all scores (total score: mean difference −1.9; limits −31.7 to 27.9). The ability subscore showed clustering at its upper limit. ICC was 0.829 (95% CI 0.730 to 0.894) for the total score and ranged between 0.530 and 0.876 for subscores (all p-values < 0.001). The total score correlated with walking speed (rho = 0.345; p = 0.008), physical activity (rho = 0.279; p = 0.033) and mental health (rho = 0.329; p = 0.010). Conclusions: UJACAS-G is reliable for assessing active aging among German-speaking healthy older adults. A potential 'ceiling effect' regarding the ability subscore should be considered when applying UJACAS-G to well-functioning populations. Analyses of concurrent validity indicated only weak correlations with health-related parameters.
- Subjects
HEALTH status indicators; DATA analysis; RESEARCH funding; RESEARCH methodology evaluation; RESEARCH evaluation; QUESTIONNAIRES; SCIENTIFIC observation; STATISTICAL sampling; TRANSLATIONS; WALKING; AGING; GERIATRIC assessment; STATISTICAL reliability; QUALITY of life; INTRACLASS correlation; STATISTICS; OXYGEN consumption; DATA analysis software; CONFIDENCE intervals; PHYSICAL activity; PHYSICAL mobility; GRIP strength; SENSITIVITY &; specificity (Statistics); EVALUATION
- Publication
Journal of Patient-Reported Outcomes, 2024, Vol 8, Issue 1, p1
- ISSN
2509-8020
- Publication type
Article
- DOI
10.1186/s41687-024-00786-w