男性煤矿工人高体力活动水平与不同定义下血脂异常水平的关联性

目的 探讨山西大同煤矿集团男性工人体力活动度对血脂异常的影响。方法 采用两阶段整群分层抽样方法抽取大同煤矿共3 656名男性矿工进行调查。血脂异常的诊断依据中国成人血脂异常防治指南，并分为四种情况。体力活动度的评价依据国际体力活动问卷处理指南的要求分为低、中、高三水平。结果 在男性煤矿工人中，体力活动低、中、高三水平所占比例分别为17.65%、15.18%和67.17%。在控制了混杂因素（年龄、体质指数（body mass index，BMI）、腰臀比、吸烟情况、饮酒情况等）的情况下，与低体力活动水平相比，高体力活动水平与高甘油三酯（triglyceride，TG）水平（OR=0.72，95%CI:0.58~0.90）、低高密度脂蛋白（high density lipoprotein，HDL-C）水平（OR=0.68，95%CI:0.55~0.84）、高低密度脂蛋白（low density lipoprotein，LDL-C）水平（OR=0.68，95%CI:0.55~0.85）、血脂异常A（OR=0.68，95%CI:0.55~0.84）、血脂异常B（OR=0.67，95%CI:0.54~0.84）、血脂异常D（OR=0.44，95%CI:0.20~0.97）均有关联（均有P<0.05），而中体力活动水平与血脂异常的发生关联均无统计学意义（均有P>0.05）。结论 研究结果表明，适当高强度的体力活动是男性煤矿工人血脂异常的保护因素。

High physical activity is associated with an improved lipid profile among male coal miners

Objective To investigate the association between dyslipidemia and physical activity among male coal miners of Shanxi Province in China. Methods 3 656 coal miners in Datong Coal Mine Group were collected by two-stage stratified cluster sampling method.The definition of dyslipidemia was based on the Chinese guidelines on treatment and prevention of dyslipidemia in adults. Self-reported physical activity was obtained with the international physical activity questionnaire (IPAQ) and categorized into three tertiles of low-, moderate- and high-activity levels. Results The percentages of individuals with vigorous, moderate, and low physical activity (PA) levels were 17.65%, 15.18% and 67.17% respectively. After adjustment of the potentially confounding effects of age, body mass index (BMI), waist-to-hip ratio (WHR), tobacco use, alcohol use, vigorous PA was associated with elevated TG(OR=0.72,95% CI:0.58-0.90), decreased HDL-C(OR=0.68,95% CI:0.55-0.84), elevated LDL-C(OR=0.68,95% CI:0.55-0.85), one abnormality (OR=0.68,95% CI:0.55-0.84),two abnormality(OR=0.67,95% CI:0.54-0.84)and four abnormality(OR=0.44,95% CI:0.20-0.97)(all P<0.05). However, moderate PA did not affect the different types of dyslipidemia(all P>0.05). Conclusions Our study suggested that appropriate high intensity of physical activity is a protective factor for dyslipidemia of male mine workers.