Validity of sleep log compared with actigraphic sleep-wake state II.
Twenty-five young people (Y group), three elderly people and seven people with various sleep disorders (SD group) kept a sleep log for 2-7 days, and their wrist-activity was monitored simultaneously. The sensitivity and specificity of the sleep log, and the ratio of agreement between the sleep log and actigraphic sleep-wake state were calculated. The sensitivity and specificity in Y group were 87.93+/-6.49% and 96.51+/-2.37%, respectively. The sensitivity in SD group was significantly lower than in Y group. Even in Y group one-hour agreement ratios dropped during the sleep onset period.
Usui
A
A
Department of Psychiatry, Yamanashi Medical University, Japan.
Ishizuka
Y
Y
Obinata
I
I
Okado
T
T
Fukuzawa
H
H
Kanba
S
S
D000328:Adult; D000367:Age Factors; D000368:Aged; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D008297:Male; D008499:Medical Records; D008875:Middle Aged; D009043:Motor Activity; D017286:Polysomnography / Q000295:instrumentation*; D012016:Reference Values; D012680:Sensitivity and Specificity; D012894:Sleep Stages; D012893:Sleep Wake Disorders / Q000175:diagnosis*; D014851:Wakefulness