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Cross-cultural adaptation and validation of the Groningen Frailty Indicator in Chinese nursing home residents

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Abstract

Background

Frail older people are more likely to develop negative health outcomes. Previous studies have indicated that the Groningen Frailty Indicator is a practical frailty screening instrument with good psychometric properties; however, it has never been implemented in Chinese nursing homes.

Aims

To cross-culturally adapt and validate the Groningen Frailty Indicator in Chinese nursing home residents.

Methods

The participants were 192 residents from nursing homes. Reliability was analyzed by internal consistency and test–retest methods. Convergent validity was assessed using Spearman rank correlations between the GFI domains and activities of daily living, the mini nutritional assessment, the Mini-mental state examination, the Social Support Rating Scale, the 20-item Epidemiologic Studies Depression Scale and the Short Form 36 mental component summary. Criterion validity was investigated by performing a receiver operating characteristics curve analysis.

Results

The Chinese GFI achieved semantic, idiomatic, and experiential equivalence. It had a high response rate among nursing home elders. It also showed good internal consistency (ICC = 0.712) and excellent test–retest reliability. Regarding construct validity, it presented good known-group divergent validity based on age. The correlations between the GFI domains and their corresponding measures were consistent as hypothesized, demonstrating convergent validity of the GFI. Using the Fried frailty phenotypes as reference criteria, the Chinese GFI showed satisfactory diagnostic accuracy for frailty (AUC = 0.823) and prefrailty (AUC = 0.791). The optimal cutoff point was 4 for frailty and 3 for prefrailty.

Conclusions

The GFI was successfully adapted for Chinese nursing home residents and presented acceptable validity and reliability.

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Acknowledgements

This work was funded by Department of Science and Technology of Jilin Province (20190303170SF) and Education Department of Jilin Province (JJKH20190094KJ). The funders played no role in the design, methods, subject recruitment, data collection, analysis or preparation of the paper.

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Correspondence to Kun Li.

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All procedures in this study that involved human participants were performed in accordance with the ethical standards of the Institutional Review Board of Jilin University School of Nursing, Changchun, China, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Xiang, W., Cheng, Y., Li, Z. et al. Cross-cultural adaptation and validation of the Groningen Frailty Indicator in Chinese nursing home residents. Aging Clin Exp Res 32, 1035–1042 (2020). https://doi.org/10.1007/s40520-019-01178-7

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