Claims-Based Frailty Index and Its Relationship With Commonly Used Clinical Frailty Measures

虚弱指数 索引(排版) 老年学 比例(比率) 医学 计算机科学 万维网 量子力学 物理
作者
Stephanie Denise M. Sison,Sandra Shi,Gahee Oh,Sohyun Jeong,Ellen P. McCarthy,Dae Hyun Kim
出处
期刊:The Journals of Gerontology [Oxford University Press]
卷期号:79 (7) 被引量:5
标识
DOI:10.1093/gerona/glae094
摘要

Abstract Background The relationship of claims-based frailty index (CFI), a validated measure to identify frail individuals using Medicare data, and frailty measures used in clinical practice has not yet been fully explored. Methods We identified community-dwelling participants of the 2015 National Health and Aging Trends Study (NHATS) whose CFI scores could be calculated using linked Medicare claims. We calculated 9 commonly used clinical frailty measures from their NHATS in-person examination: Study of Osteoporotic Fracture Index (SOF), FRAIL Scale, Frailty Phenotype, Clinical Frailty Scale (CFS), Vulnerable Elder Survey-13 (VES-13), Tilburg Frailty Indicator (TFI), Groningen Frailty Indicator (GFI), Edmonton Frail Scale (EFS), and 40-item Frailty Index (FI). Using equipercentile method, CFI scores were linked to clinical frailty measures. C-statistics and test characteristics of CFI to identify frailty as defined by each clinical frailty measure were calculated. Results Of the 3 963 older adults, 44.5% were ≥75 years, 59.4% were female, and 82.3% were non-Hispanic White. A CFI of 0.25 was equipercentile to the following clinical frailty measure scores: SOF 1.4, FRAIL 1.8, Phenotype 1.8, CFS 5.4, VES-13 5.7, TFI 4.6, GFI 5.0, EFS 6.0, and FI 0.26. The C-statistics of using CFI to identify frailty as defined by each clinical measure were ≥0.70, except for CFS and VES-13. The optimal CFI cutpoints to identify frailty per clinical frailty measure ranged from 0.212 to 0.242, with sensitivity and specificity of 0.37–0.83 and 0.66–0.84, respectively. Conclusions Understanding the relationship of CFI and commonly used clinical frailty measures can enhance the interpretability and potential utility of CFI.
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