妊娠中期妇女睡眠时间与正常血压高值的相关性

The distribution of sleep duration in mid-pregnancy and its association with prehypertension

目的了解妊娠中期妇女睡眠时间的分布,探讨其与正常血压高值(prehypertension,PHT)之间的关联。方法选取2017-2018年在广州市某区妇幼保健院进行产检的妊娠20~28周妇女943名。通过面对面问卷调查及医疗档案收集妊娠中期妇女的一般人口学信息、睡眠状况、血压、体重、身高及既往史等资料。采用方差分析和χ^2检验比较各组间的睡眠时间差异;采用多因素Logistic回归分析模型分析睡眠时间与PHT的关联。结果妊娠中期妇女平均每天总睡眠时间为(10.41±1.67)h,平均夜间睡眠时间为(9.48±1.21)h,两者分布与年龄、文化程度呈负相关;总睡眠时间≥7 h/d的比例为98.33%,≥9 h/d的比例为80.97%;入睡时间点平均为(22∶42±1.24),两者分布与被动吸烟呈负相关;平均日间睡眠时间为(0.93±0.69)h,与总体力活动呈正相关。本研究PHT检出率为9.61%;未发现睡眠时间与PHT之间的关联。结论妊娠中期妇女睡眠时间较长,在不同年龄、文化程度、体力活动、是否被动吸烟者中的分布具有明显差异,未观察到其睡眠时间与正常血压高值的相关性。

Objective To study the distribution of sleep duration in mid-pregnancy women and examine its association with prehypertension(PHT).Methods In the baseline survey of a prospective cohort study,943 women in mid-pregnancy were recruited in Guangzhou,China in 2017-2018.A standardized questionnaire was used to assess demographic characteristics,sleep duration and other lifestyles.We obtained maternal blood pressure values,weights,heights,and medical histories from medical records.Multivariate logistic regression was conducted to examine the association between sleep duration and PHT.Results The average daily sleep duration of women in mid-pregnancy was(10.41±1.67)hours,and it was negatively related to age and educational level.Overall,98.33%of pregnant women had a daily sleep duration≥7 h and the distribution was related to passive smoking.The average night time sleep duration was(9.48±1.21)hours,and it was negatively related to age and educational level.The daytime sleep duration was(0.93±0.69)hours,and it was positively associated with physical activity.The average bedtime was(22∶42±1.24),and it was positively associated with passive smoking.The prevalence of PHT was 9.61%.We did not observe any significant association between sleep duration and PHT.Conclusions The mid-pregnancy women in Guangzhou had relatively long sleep duration,and it differed by maternal age,educational level,physical activity,and passive smoking.There was no significant association between sleep duration and PHT.