Abstract
Objectives The present study evaluated the association between energy intake, energy required and mortality in older adults. Design A cohort study with a mean of 10·67 (sd 4·74) years of follow-up. Participants completed a 24 h dietary recall. Energy required per day was computed by BMR. Deaths through 2006 were identified from the National Death Index. A Cox regression was used to estimate the hazard ratios (HR) of quantiles of energy intake and energy required on all-cause and CVD mortality, adjusting for demographics, socio-economic status and co-morbidity. Setting The National Health and Nutrition Examination Survey (NHANES) III, 1988-1994. Subjects A total of 4846 participants aged 60 years or above were analysed. Results Within the follow-up period, there were a total of 2954 deaths (61·0 %), 51·9 % were caused by CVD. Relative to those in quartile 1 of energy intake, only quartile 4 was associated with all-cause mortality and CVD mortality with HR of 0·86 (95 % CI 0·77, 0·96, P=0·006) and 0·76 (95 % CI 0·65, 0·89, P=0·001), respectively. On the other hand, relative to those in quartile 1 of energy required, all quartiles of participants had a lower risk of all-cause mortality and CVD mortality. The interaction effects between energy intake and energy required with all-cause and CVD mortality were insignificant (P=0·70 and 0·61, respectively). Conclusions Independent of energy required, higher energy intake was associated with lower HR of both all-cause and CVD mortality in older adults.
Original language | English |
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Pages (from-to) | 3178-3184 |
Number of pages | 7 |
Journal | Public Health Nutrition |
Volume | 19 |
Issue number | 17 |
DOIs | |
Publication status | Published - 1 Dec 2016 |
Keywords
- Energy intake
- Gerontology
- Harris-Benedict equation
- Longitudinal study
- Population-based
ASJC Scopus subject areas
- Medicine (miscellaneous)
- Nutrition and Dietetics
- Public Health, Environmental and Occupational Health