Research Of Association Between Minerals Intake And Prevalence Of Hypertension In Rural Areas Of Jilin Province

Objectives:To analyze the prevalence of hypertension and minerals intake of Jilin provincerural residents, and to discuss the association between minerals intake and theprevalence of hypertension and to provide the basis for scientific prevention andcontrol of hypertension.Methods:A total of1380inhabitants in rural areas of Jilin province were selected by wayof cluster sampling to conduct dietary investigation, physical and blood examinationin2005-2011. Calculating mineral intakes according to the2004version of theChinese food ingredients, the mineral intake were categorized into three groupsaccording to tritiles after adjusted by residual method, and the risk of hypertension ineach group was estimate by using the Logistic regression model with the lowest groupas the reference. SPSS17.0was used for data analysis, measurement data wereanalyzed through the methods of t test or nonparametric test，enumeration datawere analyzed through the methods of chi-square test，univariate logistic analysisand multivariate logistic analysis were analyzed through Logistic regression model.Results:1. The prevalence of hypertension in study area was37.4%. hypertensionprevalence rate of male was37.8%,,hypertension prevalence rate of female was37.8%; hypertension prevalence rate of the Han nationality was33.4%, hypertensionprevalence rate of the Korean nationality was43.0%, hypertension prevalence rate ofother ethnic groups was28.9%. There were significant differences of hypertensionprevalence among people with different ages, and nationalities(P<0.05), but therewere no significant differences of hypertension prevalence among people withdifferent genders, and educations(P>0.05). 2. The average intake of selenium was inferior to RNI stipulated by the Chinesenutrition society. The average intake of calcium, phosphorus, potassium, sodium,magnesium, iron, zinc, copper and manganese was exceed RNI or AI. Na/K was morethan appropriate ratio0.5.3. univariate logistic analysis of relationship between mineral intake andhypertension revealed that risk of hypertension was increased with the increasing ofsodium intake and sodium/potassium (P<0.05), and there was no association betweenother minerals intake and hypertension(P>0.05). After adjustment for other factorsthrough multivariate logistic regression analysis, the relative risk for incidence ofhypertension for different selenium intakes in male was1.168（95%CI0.872-1.564）、1.597(95%CI1.197-2.312)， the P values was0.005.sodium intake andhypertension is no longer relevant(P>0.05).4. univariate logistic analysis of association between mineral intake andhypertension in Male revealed that there was a negative association between seleniumintake and hypertension prevalence(P<0.05), there was no association between otherminerals intake and hypertension(P>0.05). After adjustment for other risk factors, therelative risk for incidence of hypertension for different selenium intakes in male was1.00、0.480（95%CI0.297-0.778）、0.580（95%CI0.365-0.922）, the P valueswas0.008.5. univariate logistic analysis of association between mineral intake andhypertension in female revealed that there was a positive association betweenphosphorus intake and hypertension prevalence(P<0.05), and a negative associationbetween copper intake and hypertension prevalence(P<0.05), there was no associationbetween other minerals intake and hypertension(P>0.05). After adjustment for otherfactors through multivariate logistic regression analysis, phosphorus intake, copperintake and hypertension is no longer relevant(P>0.05).6. univariate logistic analysis of association between mineral intake andhypertension in the Han nationality revealed that there was a positive associationbetween phosphorus intake and hypertension prevalence(P<0.05), there was noassociation between other minerals intake and hypertension(P>0.05). Afteradjustment for other risk factors, the relative risk for incidence of hypertension for different phosphorus intakes in the Han nationality was1.00、1.606（95%CI1.076-2.398）、0.816（95%CI0.531-1.253），the P values was0.006.7. univariate logistic analysis of association between mineral intake andhypertension in the Korean nationality revealed that there was there was a positiveassociation between sodium/potassium and hypertension prevalence(P<0.05), therewas no association between other minerals intake and hypertension(P>0.05). Afteradjustment for other risk factors, the relative risk for incidence of hypertension fordifferent Na/K in Korean nationality was1.00、1.369（95%CI0.847-2.240）、2.417（95%CI1.491-3.920），the P values was less than0.001.Conclusion:1. The prevalence of hypertension in study area was37.4%.2. The average intake of selenium was inferior to RNI stipulated by the Chinesenutrition society. The average intake of calcium, phosphorus, potassium, sodium,magnesium, iron, zinc, copper and manganese was exceed RNI or AI. Na/K wasmore than appropriate ratio0.5.3. High sodium/potassium could be the risk factor affecting the incidence ofhypertension of the rural residents especially the Korean nationality in Jilinprovince.4. The selenium intake could be the protective factor affecting the incidence ofhypertension of the male rural residents in Jilin province.5. The phosphorus intake could be the risk factor affecting the incidence ofhypertension of the Han nationality rural residents in Jilin province.