Convergent validity of the electronic frailty index
Convergent validity of the electronic frailty index
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DOI：
10.1093/ageing/afy162
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发表时间：
2019-01-01
期刊：
影响因子：
6.7
通讯作者：
Clegg, Andrew
中科院分区：
文献类型：
--
作者：
Brundle, Caroline;Heaven, Anne;Clegg, Andrew
背景电子虚弱指数（eFI）已开发和验证使用常规初级保健电子健康记录数据。最初的大数据研究的重点是预测有效性作为标准验证的一种形式。收敛效度是结构效度的一个亚型，被认为是测验效度的核心组成部分。目的探讨eFI与研究标准脆弱性测量的收敛效度。设计横断面验证研究，使用社区老龄化研究75+的数据。（CARE 75+）队列研究。设置多地点英国社区为基础的队列研究。受试者353社区居住的老年人（中位年龄80岁，IQR 77-84），不包括护理院居民和生命末期的人。参与者的eFI评分中位数为0.22方法用EFI与研究标准虚弱指数（FI）、虚弱表型模型、虚弱指数与健康指数（EFI）进行收敛效度检验。临床虚弱量表（CFS）和埃德蒙顿虚弱量表采用散点图和斯皮尔曼秩和检验评估相关系数（斯皮尔曼的rho，）和95%的置信区间。结果结果表明，强相关性之间的eFI和研究标准FI（= 0.68，95% CI 0.62-0.74）和埃德蒙顿虚弱量表（= 0.63，95% CI 0.57-0.69）。有证据表明，中度之间的相关性的eFI和CFS（= 0.59，95%CI 0.49-0.65）和表型模型（= 0.51，95%CI 0.42-0.59）。
Background the electronic frailty index (eFI) has been developed and validated using routine primary care electronic health record data. The focus of the original big data study was on predictive validity as a form of criterion validation. Convergent validity is a subtype of construct validity and considered a core component of the validity of a test.Objective to investigate convergent validity between the eFI and research standard frailty measures.Design cross-sectional validation study using data from the Community Ageing Research 75+ (CARE 75+) cohort.Setting multi-site UK community-based cohort study.Subjects three hundred fifty-three community-dwelling older people (median age 80 years, IQR 77-84), excluding care home residents and people in the terminal stage of life. Median eFI score of participants was 0.22 (IQR 0.14-0.31).Methods convergent validities between the eFI and: a research standard frailty index (FI); the phenotype model of frailty; Clinical Frailty Scale (CFS) and Edmonton Frail Scale were assessed using scatter plots and Spearman's rank tests to estimate correlation coefficients (Spearman's rho, ) and 95% confidence intervals.Results results indicate strong correlation between the eFI and both the research standard FI ( = 0.68, 95% CI 0.62-0.74) and Edmonton Frail Scale ( = 0.63, 95% CI 0.57-0.69). There was evidence for moderate correlation between the eFI and both the CFS ( = 0.59, 95% CI 0.49-0.65) and phenotype model ( = 0.51, 95% CI 0.42-0.59).Conclusions This study provides evidence for convergent validity of the eFI, a core component of test validity.