Department of Psychiatry, University of Hong Kong, Hong Kong, SAR, China.
School of Nursing, Hong Kong Polytechnic University, Hong Kong, SAR, China.
Psychopathology. 2018;51(4):262-268. doi: 10.1159/000489500. Epub 2018 Jun 22.
The implications of removing nonrestorative sleep (NRS) and adding quantitative criteria in the most recent diagnostic criteria of insomnia disorder remain unresolved. The study was aimed to investigate how nighttime quantitative measures of sleep quality and NRS relate to daytime functioning in a general population sample.
Data of 905 subjects (mean age = 47.0 years; 64.5% females) in a population-based survey who had insomnia symptoms or NRS at least 1 night in a typical week were analyzed to evaluate their relationship with "functional impairment," "concerns/distress," and "interference with daily activities" over the past 30 days. Receiver-operating characteristic curve analysis was performed, while controlling for age and gender.
Moderate to severe NRS was the first-level predictor of all 3 daytime variables. Insomnia frequency ≥3 times per week and sleep onset latency ≥10-20 min were second-level predictors.
We found that NRS was more important than insomnia symptoms in determining daytime consequences of insomnia. On the basis of our findings we express concerns whether the removal of NRS from the most recent diagnostic criteria may lead to its underrecognition, but support the quantitative criteria on insomnia frequency of at least 3 nights per week.
最近的失眠障碍诊断标准中去除非恢复性睡眠（NRS）并增加定量标准的影响仍未得到解决。本研究旨在调查在一般人群样本中，夜间睡眠质量的定量测量和 NRS 与白天功能的关系。
对一项基于人群的调查中至少有 1 晚出现失眠症状或 NRS 的 905 名受试者（平均年龄=47.0 岁；64.5%为女性）的数据进行分析，以评估过去 30 天内他们与“功能障碍”、“担忧/困扰”和“日常活动干扰”之间的关系。在控制年龄和性别的情况下，进行了受试者工作特征曲线分析。
中度至重度 NRS 是所有 3 个日间变量的一级预测因素。每周失眠次数≥3 次和入睡潜伏期≥10-20 分钟是二级预测因素。
我们发现 NRS 比失眠症状更能确定失眠的日间后果。基于我们的发现，我们对从最近的诊断标准中删除 NRS 是否会导致其识别不足表示担忧，但支持每周至少 3 晚的失眠频率的定量标准。
