Department of Psychiatry, Keelung Chang Gung Memorial Hospital, Keelung City, Taiwan.
College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Clin Gerontol. 2022 May-Jun;45(3):606-618. doi: 10.1080/07317115.2021.1914258. Epub 2021 May 1.
The Pittsburgh Fatigability Scale (PFS) is a self-administered 10-item tool to measure physical and mental fatigability in older adults. The aim of the current study was to validate the psychometric properties of the traditional Chinese version of PFS (TC-PFS).
We recruited 114 community-dwellingolder adults, where 35 were diagnosed with late-life depression (LLD), 26 with mild cognitive impairment (MCI), and 53 were cognitively normal (CN) from a larger community study of older adults. Statistical analyses were done separately for TC-PFS Physical and Mental subscales. Factor analysis was used for reliability, Cronbach's alpha for internal consistency, Pearson's correlation for construct validity, and group comparison for discriminative validity.
Factor analysis revealed a two-factor structure for both the TC-PFS Physical and Mental subscales with high reliability (α = 0.89 and 0.89, respectively). Patients with LLD had the highest PFS scores, with 80.0% and 82.9% classified as having greater physical and mental fatigability. For concurrent validity, we found moderate associations with the vitality and physical functioning subscales of the 36-Item Short Form Health Survey. For convergent validity, TC-PFS showed moderate association with emotional-related psychometrics, particularly for the Physical subscale in those with LLD. In contrast, TC-PFS Mental subscale showed correlations with cognitive function, particularly in the MCI group.
Our results indicate that the TC-PFS is a valid instrument to measure perceived physical and mental fatigability in older Taiwanese adults.: Perceived fatigability reflects the underlying physical, mental or cognitive function in older adults with or without depression.
匹兹堡疲劳量表（PFS）是一种自我管理的 10 项工具，用于测量老年人的身体和精神疲劳。本研究的目的是验证传统中文版本的匹兹堡疲劳量表（TC-PFS）的心理测量特性。
我们从一项较大的老年人社区研究中招募了 114 名社区居住的老年人，其中 35 名被诊断为老年期抑郁症（LLD），26 名患有轻度认知障碍（MCI），53 名认知正常（CN）。分别对 TC-PFS 身体和心理分量表进行统计分析。使用因子分析进行可靠性分析，Cronbach's alpha 进行内部一致性分析，Pearson 相关系数进行结构有效性分析，组间比较进行判别有效性分析。
因子分析显示 TC-PFS 身体和心理分量表均具有两因素结构，可靠性高（分别为 0.89 和 0.89）。患有 LLD 的患者 PFS 评分最高，分别有 80.0%和 82.9%的患者被归类为具有更高的身体和精神疲劳。在同时效性方面，我们发现与 36 项简短健康调查的活力和身体功能分量表有中度关联。在收敛有效性方面，TC-PFS 与情绪相关的心理测量学表现出中度关联，特别是在患有 LLD 的患者中，与身体分量表相关。相比之下，TC-PFS 心理分量表与认知功能相关，特别是在 MCI 组中。
我们的结果表明，TC-PFS 是一种有效的工具，可用于测量台湾老年成年人的身体和精神疲劳。感知疲劳反映了有或没有抑郁症的老年人的潜在身体、心理或认知功能。
