Qi Jiaying, Xu Jing, Zhang Hui, Feng Mingshuai, Meng Hongyan, Wang Li
Cardiovascular Department, First Affiliated Hospital of Soochow University, Suzhou, 215006, Jiangsu, China.
School of Nursing, Suzhou Medical College of Soochow University, No.1 Shi zi Street, Suzhou, 215006, Jiangsu, China.
BMC Geriatr. 2025 Feb 7;25(1):86. doi: 10.1186/s12877-025-05743-w.
To translate, cross-culturally adapt and validate the Composite Physical Function (CPF) scale in Chinese community-dwelling older adults.
The Chinese version of the CPF (C-CPF) was constructed by following Brislin's guidelines. A cross-sectional study was conducted to evaluate the measurement properties of the C-CPF in 477 eligible older adults. Factor analysis, hypotheses testing, internal consistency and test-retest were performed to evaluate the validity and reliability of the C-CPF.
The C-CPF was consistent with the original version, which consisted of a single dimension with 12 items. It had a Cronbach's alpha coefficient of 0.901, fold-half reliability of 0.831 and test-retest reliability of 0.994. Structural validity was determined through exploratory factor analysis for a single-factor structure explained 75.391% of the total variance. Confirmatory factor analysis for a modified model provided an average fit index (chi-square/free ratio = 3.596, root mean square error of approximation = 0.099, normal fit index = 0.908, incremental fit index = 0.931, comparative fit index = 0.931 and Tucker-Lewis index = 0.909). Construct validity analysis revealed a significant difference in C-CPF scores amongst older adults in groups of different ages, regular exercise and physical activity habits (P < 0.01). Criterion validity was tested for the correlation between the results of C-CPF and the Senior Fitness Test (r = 0.446, P < 0.01).
The C-CPF scale serves as a valid and practical tool for widespread health screening to measure the level of comprehensive physical function and its decline amongst Chinese older adults. Further research is needed to explore the eligibility of the application of the C-CPF in a broad range of populations.
对综合身体功能（CPF）量表进行翻译、跨文化调适并在中国社区居住的老年人中进行验证。
按照布里斯林准则构建CPF的中文版（C-CPF）。进行了一项横断面研究，以评估477名符合条件的老年人中C-CPF的测量特性。进行了因子分析、假设检验、内部一致性和重测，以评估C-CPF的有效性和可靠性。
C-CPF与原始版本一致，由一个维度的12个项目组成。其Cronbach's α系数为0.901，折半信度为0.831，重测信度为0.994。通过探索性因子分析确定结构效度，单因素结构解释了总方差的75.391%。对修改模型的验证性因子分析提供了平均拟合指数（卡方/自由度比 = 3.596，近似均方根误差 = 0.099，正态拟合指数 = 0.908，增量拟合指数 = 0.931，比较拟合指数 = 0.931，塔克-刘易斯指数 = 0.909）。结构效度分析显示，不同年龄、规律运动和身体活动习惯组的老年人C-CPF得分存在显著差异（P < 0.01）。通过检验C-CPF结果与老年人健身测试结果之间的相关性来测试效标效度（r = 0.446，P < 0.01）。
C-CPF量表是一种有效且实用的工具，可用于广泛的健康筛查，以测量中国老年人的综合身体功能水平及其下降情况。需要进一步研究以探索C-CPF在更广泛人群中应用的适用性。
