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Validity of sleep log compared with actigraphic Sleep‐wake state
Author(s) -
USUI AKIRA,
ISHIZUKA YOSHIKAZU,
OBINATA ICHIO,
OKADO TAMIO,
FUKUZAWA HITOSHI,
KANBA SHIGENOBU
Publication year - 1998
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1111/j.1440-1819.1998.tb01006.x
Subject(s) - sleep (system call) , actigraphy , sleep onset , psychology , circadian rhythm , audiology , medicine , anesthesia , insomnia , psychiatry , neuroscience , computer science , operating system
Seven women and 11 men, mean age 30.1 years, kept a sleep log for 5–7 days, and their wrist activity was monitored each minute. Sleep‐wake state in the sleep log and actigraphic sleep‐wake state were compared, and the sensitivity and specificity of the sleep log were calculated for each subject. The ratio of agreement between these two parameters was computed for each subject. The sensitivity and specificity of the sleep log were 72.73–97.56% (mean 86.71%) and 92.85–99.68% (mean 97.04%), respectively. The agreement ratio was 87.30–97.85% (93.48%), but 1‐h agreement ratios from midnight dropped during the sleep onset period.