Abstract 18552: Adherence to a Healthy Dietary Pattern and Quality of Life in Two Population-based Cohorts of Older Adults in Spain
Introduction: Adherence to a healthy dietary pattern (HDP) is associated with lower mortality and reduced risk of chronic diseases. However, the influence of HDP on health-related quality of life (HRQL) is uncertain among the elderly. The aim of this study was to assess the association between the adherence to an HDP and HRQL in 2 cohorts representative of the Spanish older adult population (≥ 60 years).
Methods: The UAM-cohort (n= 2376) was selected in 2000/2001 and followed prospectively through 2003. Diet was collected with a food frequency questionnaire, which was used to develop an 8-item index of HDP; adherence to this pattern was defined as a score greater than the median (4 points) in this index. HRQL was assessed using the SF-36 questionnaire. The ENRICA-Seniors cohort (n=1911) was recruited in 2008-2010 and followed prospectively through 2012. A validated dietary history was used to collect diet. Two dietary indexes were used to assess the HDP (Mediterranenan diet): the MEDAS and the Trichopoulou index. Adherence to the HDP was defined as a score of ≥ 9 and ≥ 7, respectively, in the MEDAS and in the Trichopulou index. HRQL was assessed using the SF-12v.2 questionnaire. For both cohorts, physical and mental component summaries (PCS and MCS) of HRQL were computed. An increase of ≥ 3 points in either the PCS or MCS during follow-up was considered a clinically relevant improvement in HRQL. Analyses were conducted with logistic regression and adjusted for the main confounders, including HRQL at baseline.
Results: In the UAM-cohort, adherence to the HDP showed no statistically significant association with improved HRQL during the follow-up. In the ENRICA-Seniors cohort, adherence to the Mediterranenan diet, as assessed by MEDAS, was associated with an improvement in the PCS (Odds Ratio [OR]:1.28; 95% confidence interval [CI]: 1.01-1.70) but not in the MCS (OR: 1.02; 95% CI 0.81-1.30). A higher adherence to the Trichopoulou index did not show an association with either the PCS (OR:0.84; 95% CI: 0.63-1.13), or the MCS (OR:1.00; 95% CI: 0.80-1.30).
Conclusions: After two years of follow-up, we found no consistent association between an HDP and better HRQL in two cohorts of older adults in Spain. Funding: Grants from the Instituto de Salud Carlos III, PI11/01379 and PI12/1166.
Author Disclosures: P. Guallar-Castillon: None. R.F. Perez-Tasigchana: None. L.M. Leon-Muñoz: None. E. Lopez-Garcia: None. F. Rodriguez-Artalejo: None.
- © 2014 by American Heart Association, Inc.