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- Title
- Body mass index as a predictor of all-cause mortality in nursing home residents during a 5-year follow-up.
- Authors
- Veronese,N.;De Rui,M.;Toffanello,E. D.;De Ronch,I.;Perissinotto,E.;Bolzetta,F.;D'Avanzo,B.;Cardin,F.;Coin,A.;Manzato,E.;Sergi,G.
- Publication Year
- 2013
- Abstract
- Background: Body mass index (BMI) is considered a short-term mortality predictor, but a consensus has not been reached on its role and that of other nutritional parameters in predicting long-term mortality in nursing home residents. Objectives: To correlate BMI, Mini Nutritional Assessment scores, and serum albumin levels with the 5-year mortality rate in institutionalized elderly subjects. Methods: A total of 181 nursing home residents aged (greater-than or equal to)70 years were included in a 5-year longitudinal study. Data were collected on all participants' nutritional, health, cognitive, and functional status by means of a comprehensive geriatric assessment. Data on the participants' vital status were obtained 5 years after beginning the study, and a survival analysis was conducted using Kaplan-Meier curves and multivariate Cox proportional hazards models. Results: The 5-year mortality rate was 63%. The deceased subjects (n = 115) had a lower BMI (24.7 (plus or minus) 4.6 vs 26.6 (plus or minus) 5.0 kg/m2; P = .03) and Mini Nutritional Assessment score (18.6 (plus or minus) 3.7 vs 20.1 (plus or minus) 3.6; P = .02) than those still alive. Serum albumin levels did not differ between the two groups. Among the three indicators of nutritional status considered in this study, only BMI (greater-than or equal to) 30 kg/m2 was significantly associated with a lower mortality risk at 5 years (hazard ratio = 0.432; 95% CI 0.20-0.70; P = .04), the risk for death being greater the lower the BMI class (log-rank test: P < .001). Conclusions: Our findings suggest that BMI is the best of the three parameters considered as a nutritional predictor of nursing home residents' mortality in the longer term, and indicate that a lower mortality risk coincides with a higher BMI. (copyright) 2013 American Medical Directors Association, Inc.
- Journals
- J Am Med Dir Assoc.
- Volume
- 14
- Issue
- 1
- Startpage
- 53-
- Endpage
- 57
- Booktitle
- Editors
- City
- Publisher
- Abstract Link
- www.ncbi.nlm.nih.gov/pubmed/23141123
- PDF Link
- www.jamda.com/article/S1525-8610(12)00324-6/fulltext
- Issnisbn
- 1525-8610
- Reflist
- 0
- Doi
- doi:10.1016/j.jamda.2012.09.014
- Pmid
- PMID: 23141123
- Keywords
- aged;albumin blood level;article;body mass;female;follow up;geriatric assessment;human;information processing;Kaplan Meier method;major clinical study;male;mortality;nursing home patient;nutritional assessment;scoring system
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