title: Association between mental health screening by self-report questionnaire and insomnia in medical students.
abstract: Epidemiological research points to the high prevalence of psychiatric disorders among insomniacs. We carried out a cross-sectional study with medical students with the aim of evaluating the association between insomnia and suspicion of psychiatric disorder; 302 medical students were included (184 males and 118 females; mean age = 20.47+/-1.89 years). The main association was tested by logistic regression analysis. The overall prevalence of positivity in a screening test for psychiatric disorder was 22.19%; and of insomnia, 28.15%. Difficulty initiating sleep (OR=3.45), difficulty maintaining sleep (OR=7.61), falling asleep later (OR=1.99) and waking up earlier (OR=1.91) were associated with suspicion of psychiatric disorder. As a group, the variables difficulty initiating sleep, difficulty maintaining sleep, falling asleep after 11 pm, and waking up before 6 am presented an odds ratio of 5.96 for positivity in the screening for psychiatric disorder. Furthermore, difficulty maintaining sleep (OR=2.24) was associated with "being female," and falling asleep later (OR=0.43) was associated with "being male". These results underscore the importance of determining in what cases difficulty sleeping may have severe clinical repercussions or affect performance.
authors.affiliation: Graduate Program in Internal Medicine, Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: M P
authors.initials: MP
authors.lastname: Loayza H
authors.forename: T S
authors.initials: TS
authors.lastname: Ponte
authors.forename: C G
authors.initials: CG
authors.lastname: Carvalho
authors.forename: M R
authors.initials: MR
authors.lastname: Pedrotti
authors.forename: P V
authors.initials: PV
authors.lastname: Nunes
authors.forename: C M
authors.initials: CM
authors.lastname: Souza
authors.forename: C B
authors.initials: CB
authors.lastname: Zanette
authors.forename: S
authors.initials: S
authors.lastname: Voltolini
authors.forename: M L
authors.initials: ML
authors.lastname: Chaves
mesh_terms: D000328:Adult; D016001:Confidence Intervals; D003430:Cross-Sectional Studies; D004504:Education, Medical, Undergraduate; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008403:Mass Screening; D001523:Mental Disorders / Q000150:complications* / Q000453:epidemiology; D016017:Odds Ratio; D007319:Sleep Initiation and Maintenance Disorders / Q000150:complications* / Q000453:epidemiology; D013337:Students, Medical / Q000523:psychology*; D011795:Surveys and Questionnaires