Department of Kinesiology and Health, Rutgers University, New Brunswick, NJ.
Center for Obesity Research and Education, College of Public Health, Temple University, Philadelphia, PA.
Sleep. 2021 Apr 9;44(4). doi: 10.1093/sleep/zsaa246.
To examine demographic, psychosocial, and behavioral determinants of postpartum sleep duration and sleep efficiency among a cohort of black and Latina women.
Data were from 148 women (67% black, 32% Latina) at 5 months postpartum, recruited from an academic medical center in Philadelphia. Relevant demographic, psychosocial and behavioral predictors were assessed via questionnaire. Nocturnal sleep was objectively measured for 1 week using wrist actigraphy. Sleep duration was examined as a continuous variable and in categories (<7 versus ≥7 h per night); sleep efficiency was examined as a continuous variable. Independent multiple linear regression models were built to evaluate significant determinants of sleep.
Adjusted models revealed that breastfeeding, having a bedtime after midnight, and being employed were associated with shorter sleep duration (-25-33 min, all p < 0.05). Multiparity, being unmarried, being employed, breastfeeding, having a bedtime after midnight, bedsharing, and responding to infant awakenings by getting up immediately rather than waiting a few minutes to see if the infant fell back asleep, were all significant determinants of sleeping <7 h per night (OR varying: 2.29-4.59, all p < 0.05). Bedsharing was the only variable identified from the multiple regression model that associated with poorer sleep efficiency (-3.8%, p < 0.05).
Findings may inform interventions for improving postpartum sleep in socioeconomically disadvantaged, racial/ethnic minority postpartum women.
在一群黑人和拉丁裔女性队列中，检查人口统计学、心理社会和行为因素对产后睡眠持续时间和睡眠效率的影响。
数据来自费城一所学术医疗中心的 148 名产后 5 个月的女性（67%为黑人，32%为拉丁裔）。通过问卷评估了相关的人口统计学、心理社会和行为预测因素。使用腕部活动记录仪对夜间睡眠进行了为期一周的客观测量。睡眠时间作为连续变量和分类变量（<7 小时/晚与≥7 小时/晚）进行了检查；睡眠效率作为连续变量进行了检查。建立了独立的多元线性回归模型，以评估睡眠的显著决定因素。
调整后的模型显示，母乳喂养、午夜后就寝时间和就业与睡眠时间较短有关（-25-33 分钟，均 p<0.05）。多胎、未婚、就业、母乳喂养、午夜后就寝时间、同床睡以及立即响应婴儿觉醒而不是等待几分钟看婴儿是否再次入睡，都是每晚睡眠时间<7 小时的重要决定因素（OR 变化范围：2.29-4.59，均 p<0.05）。只有同床睡是从多元回归模型中确定的与睡眠效率较差相关的变量（-3.8%，p<0.05）。
这些发现可能为改善社会经济地位较低、种族/民族少数族裔产后女性的产后睡眠干预措施提供信息。
