A study of the indicators for vitality measurement based on structural equation model analysis
10.3760/cma.j.issn.0254-9026.2024.03.010
- VernacularTitle:通过结构方程模型探讨老年人活力的测量方法
- Author:
Qi ZHOU
1
;
Hong LI
;
Jie ZHANG
;
Qiang GAO
;
Ji SHEN
;
Jing LI
;
Hong SHI
;
Wenbin WU
Author Information
1. 北京医院 国家老年医学中心 国家卫生健康委北京老年医学研究所 国家卫生健康委老年医学重点实验室 中国医学科学院老年医学研究院，北京 100730
- Keywords:
Activities of daily living;
Cognition;
Intrinsic capacity;
Vitality;
Models, structural
- From:
Chinese Journal of Geriatrics
2024;43(3):324-328
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To use structural equation modeling to identify the indicator variables of intrinsic ability vitality among the elderly population.Methods:The study collected data on seven variables commonly used to measure vitality and mobility, including body mass index, weight loss, calf circumference, grip strength, gait speed at 4 m, up and go, and up and sit, from the comprehensive geriatric assessment(CGA)of patients admitted to the Department of Geriatrics of Beijing Hospital between May 2020 and May 2022.The study used a structural equation model to explore and verify the indicator variables of activity, utilizing exploratory factor analysis, confirmatory factor analysis, and correlation analysis.Results:The study conducted an exploratory factor analysis on seven variables, which resulted in two latent variables named vitality and locomotion.Body mass index, weight loss, and calf circumference were found to reflect vitality, while grip strength, 4 m-walking speed, time up and go test, and standing up and down test were found to reflect locomotion.Confirmatory factor analysis indicated that the measurement model was well-constructed and the indicator variables of vitality and locomotion were reasonably assigned[ χ2/ df=35/13, CFI=0.96, RMSEA(95% CI)=0.06(0.04, 0.08)].Correlation analysis showed that grip strength had a stronger correlation with locomotion-related variables than vitality-related variables( for grip strength and locomotion=0.33, for grip strength and vitality=0.21). Conclusions:The intrinsic ability and vitality of elderly individuals can be assessed through various means, including body mass index, weight loss, and calf circumference.However, grip strength is considered a more appropriate measure for reflecting locomotion rather than overall vitality.
