Fruit And Vegetables Consumption And Risk Of Hypertension In Adult

Objective: The associations between fruit and vegetables consumption and risk of hypertension remain controversial.The present study investigated these associations through a cross-sectional study and a Meta-analysis.Methods: In the cross-sectional study,12002 participants from 2007-2010 National Health and Nutrition Examination Survey were collected for the analysis between total fruit and vegetables consumption and risk of hypertension,univariate and multivariate logistics regression were adopted in this analysis.Univariate chi-square test and Mantel-Haenszel(M-H)chi-square test were used to examine the association between classified fruit and vegetables consumption and risk of hypertension,which included 9992 participants from 2003-2006 National Health and Nutrition Examination Survey.In the meta-analysis,fixed or random-effects model were used to calculate the pooled results.Results: In the cross-sectional study,when comparing the highest with the lowest consumption,the OR of hypertension were 0.50(95% CI: 0.29-0.87;P=0.014)for fruit and 0.73(95%CI: 0.54-0.99;P=0.044)for vegetables.The results of M-H chi-square test revealed that apple(OR=0.75;95%CI:0.63-0.89;P=0.001),pineapple(OR=0.82;95% CI:0.74-0.92;P=0.001),raw greens(OR=0.84;95%CI:0.76-0.92;P<0.001)and cucumbers(OR =0.85;95% CI:0.75-0.96;P=0.007)were found to be associated with risk of hypertension.In the meta-analysis,a total of 26 studies were included.When comparing with the lowest consumption,the pooled RRs of hypertension were 0.81(95% CI: 0.74-0.89;I2=84.7%;P for heterogeneity<0.001)for fruit and vegetables,0.71(95% CI:0.60-0.84;I2=69.3%;P for heterogeneity=0.001)for fruit and 0.90(95% CI:0.80-1.02;I2=54.1%;P for heterogeneity=0.042)for vegetables.Influence analysis revealed that no individual study had an excessive influence on the pooled results of fruit and vegetables consumption with the risk of hypertension.Conclusion: Fruit consumption may reduce the risk of hypertension.For the classified fruit and vegetables,the apple,pineapple,raw greens and cucumbers may be associated with the reduction of hypertension risk.