Cross-cultural adaptation and psychometric properties of the Groningen Frailty Indicator (GFI) among Chinese community-dwelling older adults / Xiaoyu Tian, Xiaoxia Qiao, Lijuan Dong, Na Liu, Huaxin Si, Yaru Jin, Xinyi Liu, Cuili Wang

The objective was to examine the feasibility, reliability and validity of the Groningen Frailty Indicator (GFI) among Chinese community-dwelling older adults. Of the 1230 participants, 1202 (97.7%) completed all items on the GFI. The internal consistency was acceptable (Cronbach's α = 0.64), and the test–retest reliability within a 7–15-day interval was good (ICC = 0.87). The GFI showed good diagnostic accuracy in the identification of frailty with reference to the frailty index (AUC = 0.84), and the optimal frailty cut-point was 3. Convergent validity was supported by significant correlations between each domain of the GFI and the corresponding alternative measurement(s). Higher proportions of frailty (GFI ≥ 3) were found in those who were older, female, less-educated, lived alone, and had 2 or more chronic diseases than in their counterparts, supporting its known-group discriminant validity. The Chinese GFI has good feasibility, acceptable reliability and satisfactory validity among community-dwelling older adults.

Nursing.