. Laboratório de Pesquisa em Fisioterapia Pulmonar - LFIP - Departamento de Fisioterapia, Universidade Estadual de Londrina - UEL - Londrina (PR) Brasil.
. Centro de Pesquisa em Ciências da Saúde, Universidade Pitágoras-Universidade Norte do Paraná - UNOPAR - Londrina (PR) Brasil.
J Bras Pneumol. 2022 Sep 5;48(4):e20210412. doi: 10.36416/1806-3756/e20210412. eCollection 2022.
To evaluate sleep-onset time variability, as well as sleep characteristics on weekday and weekend nights, in individuals with moderate-to-severe COPD.
Sleep was objectively assessed by an activity/sleep monitor for seven consecutive nights in individuals with COPD. For analysis, individuals were divided into two groups according to sleep-onset time variability results, characterized by intrasubject standard deviation of sleep-onset time (SOTV) ≥ 60 min or < 60 min.
The sample comprised 55 individuals (28 males; mean age = 66 ± 8 years; and median FEV1 % of predicted = 55 [38-62]). When compared with the SOTV<60min group (n = 24), the SOTV≥60min group (n = 31) presented shorter total sleep time (5.1 ± 1.3 h vs. 6.0 ± 1.3 h; p = 0.006), lower sleep efficiency (73 ± 12% vs. 65 ± 13%; p = 0.030), longer wake time after sleep onset (155 ± 66 min vs. 115 ± 52 min; p = 0.023), longer duration of wake bouts (19 [16-28] min vs. 16 [13-22] min; p = 0.025), and higher number of steps at night (143 [104-213] vs. 80 [59-135]; p = 0.002). In general, sleep characteristics were poor regardless of the day of the week, the only significant difference being that the participants woke up about 30 min later on weekends than on weekdays (p = 0.013).
Sleep-onset time varied over 1 h in a standard week in the majority of individuals with COPD in this sample, and a more irregular sleep onset indicated poor sleep quality both on weekdays and weekends. Sleep hygiene guidance could benefit these individuals if it is integrated with their health care.
评估中重度 COPD 患者入睡时间变异性以及工作日和周末夜间的睡眠特征。
通过活动/睡眠监测器对 COPD 患者连续七晚的睡眠进行客观评估。为进行分析，根据入睡时间变异性结果将患者分为两组，特征为个体内入睡时间标准差（SOTV）≥60 分钟或<60 分钟。
样本包括 55 名个体（28 名男性；平均年龄=66±8 岁；中位预测 FEV1%=55[38-62]）。与 SOTV<60min 组（n=24）相比，SOTV≥60min 组（n=31）的总睡眠时间更短（5.1±1.3 h 比 6.0±1.3 h；p=0.006），睡眠效率更低（73±12%比 65±13%；p=0.030），睡眠起始后醒来时间更长（155±66 min 比 115±52 min；p=0.023），醒来期持续时间更长（19[16-28] min 比 16[13-22] min；p=0.025），夜间步数更多（143[104-213]比 80[59-135]；p=0.002）。总的来说，无论在一周中的哪一天，睡眠特征都很差，唯一的显著差异是参与者在周末比在工作日晚醒来约 30 分钟（p=0.013）。
在该样本中，大多数 COPD 患者在一周内入睡时间变化超过 1 小时，更不规则的入睡预示着工作日和周末的睡眠质量都较差。如果将睡眠卫生指导与他们的医疗保健相结合，可能会使这些患者受益。
