Sleep disturbances associated with minor psychiatric disorders in medical students.
We performed a cross-sectional study with 342 medical students (age range, 18-35 years) to identify, among a group of sleep disturbances, those which are related to minor psychiatric disorders in this population. The instruments employed for data collection were the self-reporting questionnaire (SRQ-20), the morningness/eveningness questionnaire, the Epworth sleepiness scale, and a general questionnaire regarding demographic characteristics, use of drugs, history of psychopathology, usual fall-asleep time, usual wake-up time, amount of sleep, arousal during the night, and insomnia. We used a logistic regression model to determine independent factors associated with minor psychiatry disorders. Daytime sleepiness [odds ratio (OR), 2.12; 95% CI, 1.21-3.71], arousal [OR, 4.54; 95% CI, 1.97-10.47], insomnia [OR 2.45; 95% CI, 1.32-4.56], and sleeping less than 7 hours per night [OR, 2.02; 95% CI, 1.11-3.67] were associated with minor psychiatric disorders. This group of variables determined a cumulative risk ratio of 5.47 [95% CI, 2.87-10.41] for the main outcome.
Psychiatric Service, Hospital Presidente Vargas, Porto Alegre, Brazil.
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Hidalgo
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D000293:Adolescent; D000328:Adult; D001143:Arousal / Q000502:physiology; D001526:Behavioral Symptoms / Q000453:epidemiology / Q000209:etiology* / Q000503:physiopathology; D021081:Chronobiology Disorders / Q000150:complications / Q000453:epidemiology / Q000503:physiopathology; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D019964:Mood Disorders / Q000453:epidemiology / Q000209:etiology* / Q000503:physiopathology; D015995:Prevalence; D012307:Risk Factors; D012737:Sex Factors; D020921:Sleep Arousal Disorders / Q000150:complications / Q000453:epidemiology / Q000503:physiopathology; D012892:Sleep Deprivation / Q000150:complications* / Q000453:epidemiology / Q000523:psychology*; D007319:Sleep Initiation and Maintenance Disorders / Q000150:complications / Q000453:epidemiology / Q000503:physiopathology; D012894:Sleep Stages / Q000502:physiology; D011795:Surveys and Questionnaires