Performance of the Medicare Consumer Assessment of Health Care Providers and Systems (CAHPS) Physical Functioning Items.
Performance of the Medicare Consumer Assessment of Health Care Providers and Systems (CAHPS) Physical Functioning Items.
复制标题
医疗保险消费者对医疗保健提供者和系统 (CAHPS) 身体功能项目的评估。
DOI:
10.1097/mlr.0000000000000475
复制
发表时间:
2016-02
期刊:
影响因子:
3
通讯作者:
Elliott MN
中科院分区:
文献类型:
--
作者:
Hays RD;Mallett JS;Gaillot S;Elliott MN
Physical functioning is an important health domain for adults. Evaluate physical functioning items in Medicare beneficiaries. Survey data from the 2010 CAHPS® Medicare survey. The 366,701 respondents were 58% female; 38% were 75 or older; 57% had high school education or less. Walking, getting in or out of chairs, bathing, dressing, toileting, and eating assessed with 3 response choices: unable to do, have difficulty, do not have difficulty. Pearson correlations among the 6 items ranged from 0.515 to 0.835 (coefficient alpha = 0.92). A single factor categorical factor analytic model fit the data well (comparative fit index = 0.998; root mean square error of approximation = 0.083). The item with the highest percentage of respondents reporting no difficulty was eating, followed by toileting, dressing, bathing, getting in and out of a chair, and walking. Threshold parameters from an item response theory (IRT) graded response model ranged from −1.983 (between unable to do and have difficulty for eating) to −0.551 (between have difficulty and no difficulty for walking). Item discrimination parameters ranged from 4.632 (walking) to 8.228 (dressing). Physical functioning scores correlated with self-rated general health (r = 0.389, n = 344,843, p < 0.0001) and number of chronic conditions (r = −0.229, n = 284,507, p < 0.0001). The physical functioning items target relatively easy activities, providing information for a minority of people in the sample with the lowest levels of physical functioning. Items representing higher levels of physical functioning are needed for the majority of the Medicare beneficiaries.