Yazaki M, Shirakawa S, Okawa M, Takahashi K
Division of Psychogeriatrics, National Center of Neurology and Psychiatry, Chiba, Japan.
Psychiatry Clin Neurosci. 1999 Apr;53(2):267-8. doi: 10.1046/j.1440-1819.1999.00533.x.
To clarify the demography of delayed sleep phase syndrome (DSPS), non-24-h sleep-wake syndrome, and irregular sleep-wake pattern in Japan, a cross-sectional nationwide epidemiological survey was conducted. 1525 adults (age: 15-59 years) were randomly sampled from telephone directories, and they received screening questions over the phone. Persons who were suspected of having the disorders were requested to fill out the second questionnaire, and asked to keep a sleep log for 4 weeks. Diagnoses were made according to the International Classification of Sleep Disorders criteria. As a result, the prevalence of DSPS was estimated to be 0.13%.
为明确日本延迟睡眠相位综合征（DSPS）、非24小时睡眠-觉醒综合征及不规则睡眠-觉醒模式的人口统计学特征，我们开展了一项全国性横断面流行病学调查。从电话簿中随机抽取1525名成年人（年龄：15 - 59岁），通过电话对他们进行筛查提问。疑似患有这些疾病的人被要求填写第二份问卷，并记录4周的睡眠日志。根据《国际睡眠障碍分类》标准进行诊断。结果显示，DSPS的患病率估计为0.13%。
