Body mass index (BMI) and mortality in old adults from the general population have been related in a U-shaped or J-shaped curve. However, limited information is available for elderly nursing home populations, particularly about specific cause of death. A systematic PubMed/EMBASE/CINAHL/SCOPUS search until 31 May 2014 without language restrictions was conducted. As no published study reported mortality in standard BMI groups (<18.5, 18.5-24.9, 25-29.9, ≥30 kg/m(2)), the most adjusted hazard ratios (HRs) according to a pre-defined list of covariates were obtained from authors and pooled by random-effect model across each BMI category. Out of 342 hits, 20 studies including 19,538 older nursing home residents with 5,223 deaths during a median of 2 years of follow-up were meta-analysed. Compared with normal weight, all-cause mortality HRs were 1.41 (95% CI = 1.26-1.58) for underweight, 0.85 (95% CI = 0.73-0.99) for overweight and 0.74 (95% CI = 0.57-0.96) for obesity. Underweight was a risk factor for higher mortality caused by infections (HR = 1.65 [95% CI = 1.13-2.40]). RR results corroborated primary HR results, with additionally lower infection-related mortality in overweight and obese than in normal-weight individuals. Like in the general population, underweight is a risk factor for mortality in old nursing home residents. However, uniquely, not only overweight but also obesity is protective, which has relevant nutritional goal implications in this population/setting.
Data di pubblicazione: | 2015 | |
Titolo: | Inverse relationship between body mass index and mortality in older nursing home residents: a meta-analysis of 19,538 elderly subjects | |
Autori: | Veronese, N; Cereda, E; Solmi, M; Fowler, S. A; Manzato, E; Maggi, S; Manu, P; Abe, E; Hayashi, K; Allard, J. P; Arendt, B. M; Beck, A; Chan, M; Audrey, Y. J. P; Lin, W. Y; Hsu, H. S; Lin, C. C; Diekmann, R; Kimyagarov, S; Miller, M; Cameron, I. D; Pitkälä, K. H; Lee, J; Woo, J; Nakamura, K; Smiley, D; Umpierrez, G; Rondanelli, M; Sund Levander, M; Valentini, L; Schindler, K; Törmä, J; Volpato, Stefano; Zuliani, Giovanni; Wong, M; Lok, K; Kane, J. M; Sergi, G; Correll, C. U. | |
Rivista: | OBESITY REVIEWS | |
Keywords: | Body mass index, elderly, mortality, nursing home | |
Abstract in inglese: | Body mass index (BMI) and mortality in old adults from the general population have been related in a U-shaped or J-shaped curve. However, limited information is available for elderly nursing home populations, particularly about specific cause of death. A systematic PubMed/EMBASE/CINAHL/SCOPUS search until 31 May 2014 without language restrictions was conducted. As no published study reported mortality in standard BMI groups (<18.5, 18.5-24.9, 25-29.9, ≥30 kg/m(2)), the most adjusted hazard ratios (HRs) according to a pre-defined list of covariates were obtained from authors and pooled by random-effect model across each BMI category. Out of 342 hits, 20 studies including 19,538 older nursing home residents with 5,223 deaths during a median of 2 years of follow-up were meta-analysed. Compared with normal weight, all-cause mortality HRs were 1.41 (95% CI = 1.26-1.58) for underweight, 0.85 (95% CI = 0.73-0.99) for overweight and 0.74 (95% CI = 0.57-0.96) for obesity. Underweight was a risk factor for higher mortality caused by infections (HR = 1.65 [95% CI = 1.13-2.40]). RR results corroborated primary HR results, with additionally lower infection-related mortality in overweight and obese than in normal-weight individuals. Like in the general population, underweight is a risk factor for mortality in old nursing home residents. However, uniquely, not only overweight but also obesity is protective, which has relevant nutritional goal implications in this population/setting. | |
Digital Object Identifier (DOI): | 10.1111/obr.12309 | |
Handle: | http://hdl.handle.net/11392/2363462 | |
Appare nelle tipologie: | 03.1 Articolo su rivista |
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