Comparison Of Prevalence Rate And Risk Factors Of Stroke In Sampling Population Aged40Years And Over Between Rural And Urban Areas In Jilin Province

Objective：This epidemiological survey was to compare and analyze theprevalence rate of stroke and exposure rate of risk factors in sampling populationaged40years and over between rural and urban areas in Jilin Province, to providescientific basis for pertinent prevention and control of stroke in Jilin Province,and to provide valuable data for the high-risk groups to carry out regularfollow-up and standardized management.Methods：Target population aged40years and over (born before December31,1973)was selected from Jilin Province by means of group sampling. Participants wereinvestigated face to face by a questionnaire 《Risk Evaluation Statement for theScreening and Intervention of High-risk Crowds of Stroke in2013》designed byStroke Screening and Prevention Committee affiliated to National Health and FamilyPlanning Commission of PRC. The investigation included general information,physical examination, laboratory tests on the common risk factors of stroke.Exposure rate of risk factors and its population distributive characteristics weredescribed by urban and rural distribution, ages and gender. The differences ofthe prevalence rate of stroke and the exposure rate of risk factors between ruraland urban area were analyzed by the method of biological statistics.Results:30020individuals were enlisted into data analysis, of which13475individuals were from rural areas (6479males,6996females) and16545individuals were from urban areas (7184males,9361females). The proportion ofhigh-risk stroke groups was22.9%,and the prevalence rate of stroke in JilinProvince was5.0%. The proportion of high-risk stroke groups in community (28.2%)was significantly higher than those in the town (16.5%),between which there wasa statistical significance (χ2=578.816，P=0.000＜0.01). The prevalence rate ofstroke in community (4.9%) was almost equal to that in the town (5.0%),betweenwhich there was no statistical significance (χ2=0.251，P=0.616＞0.05). Theoverall male stroke prevalence rate (5.3%) was higher than the female (4.7%),between which there was a statistical significance (χ2=6.020，P=0.014＜0.05). The prevalence rate of stroke increased with years no matter in the town orcommunity.Exposure rate of hypertension, hyperlipidemia, diabetes, atrial fibrillationor significant arrhythmia, smoking, lack of exercise or light manual labor,overweight or obesity and family history of stroke were24.6%、13.1%、5.9%、3.9%、18.9%、23.3%、21.2%and10.2%,respectively， among which the exposure rate ofhypertension was highest, lack of exercise or light manual labor and overweightor obese exposure rate were followed by, and the rate of atrial fibrillation orsignificant arrhythmia was lowest. All other risk factors except smoking exposurerate in community were higher than that in the township, between which there wasa statistical significance (P＜0.01). Exposure rate of hypertension,hyperlipidemia, diabetes, atrial fibrillation or significant arrhythmia, smoking,lack of exercise or light manual labor, overweight or obesity and family historyof stroke in the town were19.3%、3.7%、3.3%、2.2%、25.8%、10.6%、18.5%and7.5%,respectively.Hypertension, hyperlipidemia, diabetes, atrial fibrillationor significant arrhythmias, overweight or obese exposure rate of male was lessthan that of female, and the difference was statistically significant (P＜0.01).Smoking exposure rate in men was higher than in women, and there was significantdifference (P＜0.01). The lack of exercise or light manual labor, family historyof stroke exposure rate between female and male was approximately the same, andthe difference had no statistical significance (P＞0.05). The corresponding riskfactors exposure rate in community were28.8%,20.8%,8.1%,5.3%,13.3%,33.6%,23.3%and12.4%,respectively. The hyperlipidemia, atrial fibrillation orsignificant arrhythmias and overweight or obese exposure rate of male were allless than that of female, and the difference was statistically significant (P＜0.01).Smoking exposure rate in men was statistically higher than women (P＜0.01).Diabetes, overweight or obese exposure rate of male was slightly higher thanthat of women, the difference had no statistical significance (P＞0.05). Theexposure rate of hypertension between female and male was approximately the same,the difference had no statistical significance (P＞0.05). Conclusion: The epidemiological survey was a cross-sectional study. Theprevalence rate of stroke in Jilin Province was5.0%, and increased with years.The overall male stroke prevalence rate was higher than the female. The prevalencerate of stroke between rural and urban areas was approximately the same, whichwere both higher than those of other domestic epidemiological survey. Higherexposure rate risk factors of stroke in Jilin Province was hypertension, the lackof exercise or light manual labor and overweight or obese. Therefore, changingpeople’s life style and dietary structure, control of hypertension, increasingthe amount of exercise, prevention of overweight or obesity should become the veryimportant measures. Whether in towns or communities, smoking exposure rate of malewas much higher than female, however, hyperlipidemia exposure rate of female washigher than that of male. All other risk factors except smoking exposure rate incommunity were higher than those in the township.Screening for risk factors ofstroke to the residents, raising awareness rate, diagnosis rate, control ratewould be an effective method to reduce the incidence and mortality of stroke.