广州市儿童静态生活与心血管代谢危险因素的关系

The association of sedentary lifestyles with cardiometabolic risk factors in children in Guangzhou

目的了解广州市儿童课外静态生活方式情况,探究课外静态生活方式与心血管代谢危险因素的关系。方法本研究采用分层整群随机抽样的方法,于2017年抽取广州市7~12岁儿童4 294名,采用体格检查、问卷调查等方法,收集儿童课外静态生活方式及心血管代谢危险因素状况,分析比较不同课外静态生活时间对心血管代谢危险因素的影响。结果被调查儿童每天课外静态生活时间平均为194.3 min(男生200.3 min,女生187.3 min),四分位数分组分别为≤130.0、131.0~、181.0~、≥241.0 min。在控制混杂因素后,与每天课外静态生活时间最低组相比,每天课外静态生活时间最高组发生中央型肥胖、超重肥胖、总胆固醇异常、甘油三酯异常以及低密度脂蛋白胆固醇异常的OR值及其95%CI分别为1.39(1.08~1.80),1.44(1.16~1.80),1.26(1.05~1.51),1.63(1.34~1.98)和1.28(1.06~1.55)。结论过长的课外静态生活时间会增加儿童中央型肥胖、超重肥胖的风险,并且与儿童的血脂紊乱有关,应加强对我国儿童青少年生活方式的干预,减少儿童青少年静态生活时间。

Objective To evaluate sedentary lifestyles after school in children aged 7 to 12 yearold living in Guangzhou, and to explore the association between sedentary behaviors after school with cardiometabolic risk factors. Methods Using the method of stratified cluster random sampling, this study recruited 7 to 12 year-old primary students ( n = 4 294) in Guangzhou. The physical examination and questionnaire were used to collect the sedentary lifestyles after school and cardiometabolic risk factors, analyzing the impact of different aedentary behavoir time after school on cardiometabolic risk factors. Results The average sedentary time after school per day were 194. 3 min (boys: 200. 3 min;girls: 187. 3 min). Inter-quartile ranges of sedentary time after school per day were ≤130. 0, 131. 0 - 180. 0, 181. 0 -240. 0, and ≥241. 0 min/d. Controlling for confounding factors, the odd ratios ( OR) of central obesity, overweight/obesity, high TC status, high TG status and high LDL-C status in the highest compared to the lowest quartile of sedentary time after school per day were 1. 39 (95% CI : 1. 08 - 1. 80), 1.44 (95% CI:1. 16-1.80), 1.26(95%CI:1.05 - 1.51), 1. 63(95% CI: 1. 34 - 1. 98), 1. 28(95% CI: 1. 06 -1. 55), respectively. Conclusions Sedentary lifestyles have a positive relationship with childhood central obesity, overweight/obesity and dyslipidemia in primary school children. Therefore, it is essential to strengthen the intervention to the lifestyles of teenagers and reduce the sedentary behavior time of children and teenagers.