a The Miriam Hospital , Alpert Medical School of Brown University , Providence , Rhode Island.
b Temple University , College of Public Health , Philadelphia , PA.
Behav Sleep Med. 2016 Sep-Oct;14(5):539-49. doi: 10.1080/15402002.2015.1048447. Epub 2015 Oct 27.
To examine the agreement between actigraphy-estimated and self-reported sleep duration in obese individuals, we had 63 treatment seeking overweight/obese participants complete the Pittsburgh Sleep Quality Index (PSQI) and report sleep duration for weekends and weekdays, and compared their reports to 7 days of actigraphy. Actigraph total sleep time correlated r = .20-.31 with self-report and the absolute discrepancy averaged 51-54 minutes. Only 20 of the 32 subjects (62.5%) classified as short sleepers (<7 hours/night) by actigraphy were similarly classified by self-report. Poor sleep quality was associated with greater absolute discrepancy between actigraphy and self-report. The weak correlations between self-report and actigraph should be considered in future efforts to increase sleep duration to promote weight loss in obese individuals.
为了检验肥胖个体中活动记录仪估计的睡眠时间与自我报告睡眠时间之间的一致性,我们让 63 名寻求治疗的超重/肥胖参与者完成匹兹堡睡眠质量指数(PSQI),并报告周末和工作日的睡眠时间,并将他们的报告与 7 天的活动记录仪进行比较。活动记录仪的总睡眠时间与自我报告呈 r =.20-.31 相关,平均绝对差异为 51-54 分钟。在通过活动记录仪分类为短睡眠者(<7 小时/夜)的 32 名受试者中,仅有 20 名(62.5%)同样通过自我报告进行了分类。睡眠质量差与活动记录仪和自我报告之间的绝对差异更大相关。在未来增加肥胖个体的睡眠时间以促进减肥的努力中,应考虑自我报告和活动记录仪之间的弱相关性。