Longitudinal differences in sleep duration in Hispanic and Caucasian children.
Longitudinal differences in sleep duration in Hispanic and Caucasian children.
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DOI：
10.1016/j.sleep.2015.06.008
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发表时间：
2016-02
期刊：
影响因子：
4.8
通讯作者：
Parthasarathy S
中科院分区：
文献类型：
--
作者：
Combs D;Goodwin JL;Quan SF;Morgan WJ;Parthasarathy S
睡眠时间短与严重的负面后果有关，包括学习成绩差，行为问题，肥胖和高血压。先前有证据表明，睡眠时间与种族有关;然而，没有西班牙裔儿童的具体数据。我们的目的是检验一个假设，即在一个以社区为基础的西班牙裔和白人儿童队列中，父母报告的睡眠时间存在种族差异。我们研究了一个以社区为基础的前瞻性队列（图森儿童睡眠呼吸暂停评估研究（TuCASA））的父母报告的睡眠模式，该队列涉及338名西班牙裔和白人儿童，时间间隔约为5年。在TuCASA研究的初始阶段，队列中位年龄为8.8岁（四分位距（IQR），7.6-10.1岁），西班牙裔儿童的父母报告的工作日睡眠时间较短（中位数，9.5小时; IQR，9.0，10.0岁）（10小时; IQR，9.5，10.0小时; p < 0.0001）;然而，5年后，当队列年龄较大时，未观察到这种差异（中位年龄，13.3岁; IQR，11.9-14.6岁; p = 0.43）。此外，西班牙裔儿童在两个时间点的就寝时间均显著较晚（p < 0.02）。在初始阶段，父母报告的睡眠时间在周末往往是西班牙裔比白人儿童短（p = 0.06）。西班牙裔儿童睡眠时间短可能导致健康差异。我们的研究表明，在西班牙裔儿童中，需要通过提前就寝时间或延迟上学时间来改善睡眠时间的行为干预，以及揭示任何延迟睡眠阶段的内在趋势的机制研究。
Short sleep duration is associated with significant negative consequences, including poor school performance, behavioral problems, obesity, and hypertension. There is prior evidence that there are disparities in sleep duration related to ethnicity; however, there are no specific data on Hispanic children. We aimed to test the hypothesis that there are ethnic differences in parent-reported sleep duration in a community-based cohort of Hispanic and Caucasian children. We examined the parent-reported sleep patterns of a community-based prospective cohort (Tucson Children’s Assessment of Sleep Apnea study (TuCASA)) involving 338 Hispanic and Caucasian children at two time points approximately 5 years apart. In the initial phase of the TuCASA study with a cohort median age of 8.8 years (interquartile range (IQR), 7.6–10.1 years), parent-reported sleep duration during weekdays was shorter in Hispanic (median, 9.5 h; IQR, 9.0, 10.0 years) than in Caucasian children (10 h; IQR, 9.5, 10.0 h; p < 0.0001); however, this difference was not seen 5 years later when the cohort was older (median age, 13.3 years; IQR, 11.9–14.6 years; p = 0.43). In addition, Hispanic children had a significantly later bedtime at both time points (p < 0.02). In the initial phase, parent-reported sleep duration during weekends tended to be shorter in Hispanic than in Caucasian children (p = 0.06). Short sleep duration in Hispanic children may contribute to health disparities. Our research suggests that in Hispanic children, behavioral interventions toward improving sleep duration accomplished by earlier bedtimes or delayed school start times and mechanistic studies to unravel any inherent tendency toward a delayed sleep phase are needed.