Journal
PUBLIC HEALTH NUTRITION
Volume 25, Issue 12, Pages 3476-3486Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1368980022000106
Keywords
DASH-style diet; Mediterranean-style diet; Blood pressure; Epidemiology; Hypertension
Funding
- National Key Research and Development Program of China [2017YFC0907302]
- Key R&D Project of Sichuan Province Science and Technology Support Program [2020YFS0215, 2020JDJQ0014]
- CNS-ZD Tizhi and Health Fund [ZD2020-149]
- National Natural Science Foundation of China [81903415, 81773548, 81973151]
- Sichuan University Medical Ethical Review Board [K2016038]
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This study investigated the associations between the Dietary Approaches to Stop Hypertension (DASH) diet and the Mediterranean-style diet with blood pressure. The results showed that both diets were associated with lower blood pressure levels, with a stronger effect observed in individuals with hypertension.
Objective: We aimed to investigate the associations of Dietary Approaches to Stop Hypertension (DASH)-style diet and Mediterranean-style diet with blood pressure (BP) in less-developed ethnic minority regions (LEMR). Design: Cross-sectional study. Setting: Dietary intakes were assessed by a validated FFQ. Dietary quality was assessed by the DASH-style diet score and the alternative Mediterranean-style diet (aMED) score. The association between dietary quality and BP was evaluated using multivariate linear regression model. We further examined those associations in subgroups of BP level. Participants: A total of 81 433 adults from the China Multi-Ethnic Cohort (CMEC) study were included in this study. Results: In the overall population, compared with the lowest quintile, the highest quintile of DASH-style diet score was negatively associated with systolic BP (SBP) (coefficient -2.78, 95 % CI -3.15, -2.41; P-for trend < 0.001), while the highest quintile - of aMED score had a weaker negative association with SBP (coefficient -1.43, 95 % CI -1.81, -1.05; P-for trend < 0.001). Both dietary indices also showed a weaker effect on diastolic BP (coefficient for DASH-style diet -1.06, 95 % CI -1.30, -0.82; coefficient for aMED -0.43, 95 % CI -0.68, -0.19). In the subgroup analysis, both dietary indices showed a stronger beneficial effect on SBP in the hypertension group than in either of the other subgroups. Conclusion: Our results indicated that the healthy diet originating from Western developed countries can also have beneficial effects on BP in LEMR. DASH-style diet may be a more appropriate recommendation than aMED as part of a dietary strategy to control BP, especially in hypertensive patients.
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