孕前午睡与目前夜眠时长对孕晚期疲劳的相关性研究

Study on the correlation between pre-pregnancy day nap and sleep duration in the third trimester of pregnancy on fatigue

目的讨论孕前午睡与目前夜眠时长对孕晚期正常孕妇疲劳程度的影响。方法收集2020年1~12月于厦门大学医学院第二附属医院就诊的正常孕晚期(孕28周~分娩)孕妇490例,收集其一般人口学信息与临床资料,记录孕前午睡与目前夜眠有效睡眠时长,排除3例缺失夜眠时长样本,有效样本487例。按孕前是否午睡分为午睡(n=332)和无午睡(n=141),依据美国国家睡眠基金会建议,以7 h为界点,结合目前夜眠有效睡眠时长≤7 h(n=165)和>7 h(n=308)进行分组。对各组样本进行一般资料调查,采用FS-14量表量化孕晚期妇女疲劳程度,将得分整理为总分、躯体疲劳得分、脑力疲劳得分三个项目,分析午睡、夜眠时长效应的交互作用、不同主效应的差异及夜眠时长与FS-14得分相关性。结果FS-14总分、FS-14躯体疲劳得分组间差异有统计学意义,FS-14脑力疲劳得分组间差异无统计学意义。无午睡且夜眠≤7 h组孕妇FS-14总分、躯体疲劳得分、脑力疲劳得分均最高,无午睡且夜眠>7 h的孕妇三项得分均值为最低分。不论孕前是否午睡,夜眠时长>7 h,其疲劳总分、躯体疲劳得分均较低。结论孕前午睡与目前夜眠时长均会影响孕妇的疲劳,以躯体疲劳为主;孕前午睡,尤其孕后夜眠时长>7 h有助于孕妇疲劳缓解。

Objective To explore the effects of prepregnancy day nap and sleep duration in the third trimester on the fatigue of healthy pregnant women.Methods490 pregnant women in the third trimester during January to December 2020 were collected from the Second Affiliated Hospital of Medical College of Xiamen University.Demographic information and general clinical data were collected.The effective sleep duration of prepregnancy day nap and night sleep in the third trimester were recorded.Three cases with missing sleep duration were excluded and 487 samples were included in the final analysis.Two groups were divided as nap group who had nap before pregnancy(n=332)and no nap group(n=141),nocturnal sleep≤7 h(n=165)and nocturnal sleep>7 h(n=308)were further divided according to the recommendations of the National Sleep Foundation of the United States(7 h as the boundary point).Information on general characteristics by group was investigated.Fatigue Scale-14(FS-14)was used to quantify the fatigue degree of women in the third trimester of pregnancy.The scores were sorted into three categories:total score,physical fatigue score and mental fatigue score.The interaction of nap and night sleep duration effect,the difference of different main effects and the correlation between night sleep duration and FS-14 score were analyzed.ResultsThere was significant difference in FS-14 total score,FS-14 physical fatigue score,however,no significant difference in FS-14 mental fatigue score.The total score of FS-14,physical fatigue score and mental fatigue score of pregnant women without nap and sleep at night≤7 h were the highest,and the mean value of the three scores of pregnant women without nap and sleep at night>7 h was the lowest.The total fatigue score and physical fatigue score were lower when the sleep duration was more than 7 h,whether or not taking a nap before pregnancy.ConclusionPrepregnancy nap and the current length of night sleep will affect the fatigue of pregnant women,especially affect physical fatigue;Taking a nap before pregnancy,night sleep>7 h is helpful to alleviate the fatigue of pregnant women.