Journal
JOURNAL OF THE AMERICAN MEDICAL DIRECTORS ASSOCIATION
Volume 13, Issue 9, Pages 782-787Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jamda.2012.08.006
Keywords
Chronic kidney disease; Chinese; nursing home older adults; mortality; hospitalization
Categories
Funding
- Tung Wah Group Hospitals Research Fund
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Objective: To investigate chronic kidney disease (CKD) as a predictor of mortality and hospitalization in Chinese nursing homes older residents. Design: A 3-year prospective multicenter cohort study. Setting: Nine nursing homes in Hong Kong. Participants: Nursing home older adults (812 total; 271 men and 571 women), mean age 86.0 +/- 7.6. Measurements: Glomerular filtration rate (GFR) was estimated by the Modification of Diet in Renal Disease Study (Chinese-adjusted), and participants were stratified into different severity of renal impairment according to the modified version of Kidney Disease Outcomes Quality Initiative (K/DOQI): stage 1 CKD: GFR > 90 mL/min/1.73 m(2); stage 2 CKD: 60-89 mL/min/1.73 m(2); stage 3A CKD: 45-59 mL/min/1.73 m(2); stage 3B CKD: 30-44 mL/min/1.73m(2); stage 4/5: <30 mL/min/1.73 m(2). The outcome measures were the all-cause, infection-related, and cardiovascular-related mortality and hospitalizations. Results: Older adults with stage 3B and stage 4/5 CKD had higher all-cause, infection-related, and cardiovascular-related mortality than those with earlier stages of CKD. After multivariate analysis, stage 3B and stage 4/5 CKD were independent predictors of all-cause mortality (stage 3B, hazard ratio [HR]: 1.62, 95% CI: 1.12-2.33, P = .01; stage 4/5, HR: 2.00, 95% CI: 1.34-3.00, P = .001) and infection-related mortality (stage 3B, HR: 1.41, 95% CI: 1.08-2.30, P = .019; stage 4/5, HR: 1.91, 95% CI: 1.13-3.23, P = .016), but not cardiovascular-related mortalities. The all-cause, infection-related, and cardiovascular-related hospitalizations were significantly higher in older nursing home adults with stage 3B and stage 4/5 CKD. Conclusion: In Chinese nursing home older adults, stage 3B and stage 4/5 CKD are independent predictors of all-cause and infection-related mortality. They also predict increased risks of all-cause, infection-related, and cardiovascular-related hospitalizations. Copyright (C) 2012 - American Medical Directors Association, Inc.
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