期刊
JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
卷 61, 期 6, 页码 896-901出版社
WILEY-BLACKWELL
DOI: 10.1111/jgs.12266
关键词
frailty; hemodialysis; mortality; hospitalization
资金
- Doris Duke Charitable Foundation
- National Institute on Aging [T32AG000247]
Objectives To quantify the prevalence of frailty in adults of all ages undergoing chronic hemodialysis, its relationship to comorbidity and disability, and its association with adverse outcomes of mortality and hospitalization. Design Prospective cohort study. Setting Single hemodialysis center in Baltimore, Maryland. Participants One hundred forty-six individuals undergoing hemodialysis enrolled between January 2009 and March 2010 and followed through August 2012. Measurements Frailty, comorbidity, and disability on enrollment in the study and subsequent mortality and hospitalizations. Results At enrollment, 50.0% of older (65) and 35.4% of younger (<65) individuals undergoing hemodialysis were frail; 35.9% and 29.3%, respectively, were intermediately frail. Three-year mortality was 16.2% for nonfrail, 34.4% for intermediately frail, and 40.2% for frail participants. Intermediate frailty and frailty were associated with a 2.7 times (95% confidence interval (CI)=1.02-7.07, P=.046) and 2.6 times (95% CI=1.04-6.49, P=.04) greater risk of death independent of age, sex, comorbidity, and disability. In the year after enrollment, median number of hospitalizations was 1 (interquartile range 0-3). The proportion with two or more hospitalizations was 28.2% for nonfrail, 25.5% for intermediately frail, and 42.6% for frail participants. Although intermediate frailty was not associated with number of hospitalizations (relative risk=0.76, 95% CI=0.49-1.16, P=.21), frailty was associated with 1.4 times (95% CI=1.00-2.03, P=.049) more hospitalizations independent of age, sex, comorbidity, and disability. The association between frailty and mortality (interaction P=.64) and hospitalizations (P=.14) did not differ between older and younger participants. Conclusions Adults of all ages undergoing hemodialysis have a high prevalence of frailty, more than five times as high as community-dwelling older adults. In this population, regardless of age, frailty is a strong, independent predictor of mortality and number of hospitalizations.
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