新疆阿勒泰市哈萨克族不同职业人群高血压相关因素分析

Factors related to hypertension in Kazakhs with different occupations in Altay city,Xinjiang Uygur Autonomous Region

目的探讨新疆哈萨克族不同职业人群(市民、农民、牧民)高血压相关因素及其重要程度,以开展有针对性高血压防治工作。方法2012至2013年新疆阿勒泰市红墩镇,根据3种职业人口比例采用随机整群抽样方法抽取1668名年龄≥30岁哈萨克族人,进行高血压相关因素调查。采用随机森林方法探讨不同职业人群高血压相关因素及其重要程度。结果1646人纳入本研究。根据随机森林特征重要性评分对排名前5位高血压重要预测变量由大到小依次排序,市民为腰围、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)、体质指数(BMI)及年龄;农民为年龄、LDL-C、总胆固醇(TC)、TG及腰围;牧民为年龄、BMI、腰围、TC及LDL-C(特征重要性评分>0.06)。模型预测准确率分别为0.82、0.69、0.76。结论在不同职业人群中肥胖和血脂与高血压相关程度不同,需对不同职业人群进行有针对性高血压防治。随着城市化进程,城镇居民要注意控制向心性肥胖。

Objective To investigate factors related to hypertension and their importance degrees in Kazakhs,from Altay city,Xinjiang Uygur Autonomous Region,with different occupations(citizen,farmer,and nomad)for target hypertension prevention.Methods According to the proportions of three occupation populations,1668 Kazakhs aged 30 years or older were selected by random cluster sampling from 2012 to 2013,in Hongdun Town,Altay City,Xinjiang.Hypertension related factors were investigated.We used random forest model to explore the factors related to hypertension and their importance degrees in different occupational groups.Results 1646 participants were included in this study.We ranked the importance of hypertension related factors by feature importance scores.The top five hypertension related factors were waist circumference,triglycerides(TG),low-density lipoprotein cholesterol(LDL-C),body mass index(BMI),and age for citizen;age,LDL-C,total cholesterol(TC),TG,and waist circumference for farmer.Age,BMI,waist circumference,TC,and LDL-C for nomad(feature importance scores>0.06).The prediction accuracy of random forest models of hypertension for citizen,farmer,and nomad were 0.82,0.69,and 0.76,respectively.Conclusions In different occupational groups,obesity and blood lipids were related to hypertension in different degrees,so the target of hypertension prevention should be carried out for different occupational groups.With the process of urbanization,urban residents should be well informed to controlling central obesity.