Abstract 1360: Vegetarian Dietary Pattern and Systolic Blood Pressure: Results From the Adventist Health Study 2 (AHS-2)
Objective: To study how vegetarian dietary pattern influence systolic blood pressure(SBP) adjusting for well established risk factors for Hypertension(HTN).
Background: Prior studies have suggested that vegetarian diets can reduce systolic and diastolic BPs; also, studies on Seventh Day Adventists (SDA) showed less reported HTN in vegetarians as compared to non-vegetarian Adventists.
Methods: The AHS-2 is a cohort study on 96,000 SDAs enrolled from 2002 to 2007. We analyzed data from a calibration study (N=1007) designed to evaluate the accuracy of collection and reporting of data in AHS-2, with a clinical examination including BP measurements. We selected 611 subjects who did not report a diagnosis of HTN and were not on anti-hypertensive medications for current analysis. Forty seven subjects were strict vegetarians consuming no animal products (Vegans), 204 were consuming dairy products/eggs but no fish or meat(lacto-ovo vegetarians), 107 were partial-vegetarians defined as consuming fish or poultry > 1/month but <1/week but no red meat and 259 subjects were non-vegetarians. With multivariate linear regression analysis, there was no significant interaction between dietary pattern and other covariates in the model. Adjusting for age, gender, race, BMI category and physical activity; there was a significant association between dietary pattern and SBP (p=0.01-table-1⇓). Mean SBP’s are reported in table-2⇓.
Conclusion: Diet may have an additional effect on blood pressure beyond the previously known effect mediated through weight reduction.