摘要
目的 了解我国成年人超重肥胖流行现状,探讨成年人午睡时长、夜间睡眠时长与超重肥胖的关系.方法 数据来源于2020年中国家庭追踪调查(CFPS)数据库,使用频数和百分比对超重肥胖进行一般统计描述,采用二元logistic回归和限制性立方样条图探讨午睡时长、夜间睡眠时长与成人超重肥胖的相关关系和非线性关系.结果 本研究纳入有效样本20955人,超重肥胖率、有午睡习惯率和夜间睡眠不足率分别为38.8%(8 137/20955)、61.1%(12806/20955)、20.4%(4279/20955).控制混杂因素后,相较于不午睡,午睡30~<60min(OR=1.105)、60~<90min(OR=1.143)、≥90min(OR=1.207)与超重肥胖发生存在关联;相较于夜间睡眠时长7~9h,夜间睡眠时长<7h与超重肥胖发生存在关联(OR=1.168).限制性立方样条图结果显示,午睡时长30min和夜间睡眠时长8h为临界点,午睡时长>30 min、夜间睡眠时长<8 h与超重肥胖发生风险升高相关.性别分层结果显示,男性在午睡30~<60 min(OR=1.256)、≥90 min(OR=1.146)与超重肥胖相关,女性在午睡60~<90 min(OR=1.204)、≥90 min(OR=1.346)与超重肥胖相关;男性(OR=1.155)和女性(OR=1.166)在夜间睡眠时长<7 h与超重肥胖相关.性别与午睡时长30~<60min、60~<90min、≥90min和夜间睡眠时长<7h存在交互作用(P<0.05或P<0.01).结论 延长午睡时长、夜间睡眠时长不足与成人超重肥胖密切相关,午睡时长对成人超重肥胖影响有待进一步研究.
Abstract
Objective To understand the prevalence of overweight/obesity among Chinese adults,and to explore the relationship between nap duration,nighttime sleep duration and overweight/obesity.Methods Data were collected from the 2020 China Family Panel Studies(CFPS)database.Frequency and percentage were used to conduct general sta-tistical description of overweight and obesity.Binary logistic regression and restricted cubic spline were used to explore the relationship and nonlinear relationship between nap duration,nighttime sleep duration and overweight/obesity in adults.Results A valid sample of 20 955 individuals was included in this study,and the rates of overweight/obesity,napping hab-it,and insufficient nighttime sleep were 38.8%(8 137/20 955),61.1%(12 806/20 955),and 20.4%(4 279/20 955),re-spectively.After controlling for confounders,nap duration 30~<60 min(OR=1.105),60~<90 min(OR=1.143),and ≥90 min(OR=1.207)was associated with overweight/obesity compared with no napping.Compared with nighttime sleep dura-tion of 7-9 h,nighttime sleep duration<7 h was associated with overweight/obesity(OR=1.168).The results of the restrict-ed cubic spline showed that 30 min of nap duration and 8 h of nighttime sleep duration were the critical points,nap dura-tion>30 min and nighttime sleep duration<8 h were associated with an increased risk of overweight and obesity.The re-sults of gender stratification showed that the nap duration 30~<60 min(OR=1.256)and ≥90 min(OR=1.146)were asso-ciated with overweight/obesity in men,and the nap duration 60~<90 min(OR=1.204)and ≥90 min(OR=1.346)were as-sociated with overweight/obesity in women.Nighttime sleep duration<7 h was associated with overweight and obesity in men(OR=1.155)and women(OR=1.166).There was an interaction between gender and nap duration 30~<60 min,60~<90 min,≥90 min,and nighttime sleep duration<7 h(P<0.05 or P<0.01).Conclusion Prolonged nap duration and insuf-ficient nighttime sleep duration were closely associated with overweight/obesity in adults,and the effect of nap duration on overweight/obesity in adults needs further study.