Is insomnia a marker for psychiatric disorders in general hospitals?
OBJECTIVE
The aim was to evaluate the relationship between insomnia and psychiatric disorders in general hospital inpatients.


METHODS
Information about insomnia was collected using a structured and codified questionnaire adapted from a previously validated one in Brazil. For Diagnostic and Statistical Manual of Mental Disorders IV (DSM-IV) psychiatric diagnosis, the Portuguese version of the International Neuropsychiatric Interview (MINI) was used.


RESULTS
Out of the 200 patients interviewed, 56.5% complained of insomnia, and 50.0% suffered from at least one psychiatric disorder. Major depressive episode (MDE) (P<0.001), generalized anxiety disorder (P=0.025) and suicide risk (P=0.034) were associated with insomnia (univariate analysis). The results of the multivariate analysis showed that only MDE had a statistically significant association with insomnia (OR=3.6; 95% CI=1.9-6.9).


CONCLUSIONS
This study found a high prevalence of psychiatric disorders and insomnia in a general hospital population and found that insomnia can be a marker for MDE.
Institute of Social Security of the Civil Servants of Minas Gerais, Belo Horizonte, Alameda Ezequiel Dias, 225, 30130.110 Belo Horizonte, MG, Brazil. rochafl@uol.com.br
Fábio Lopes
FL
Rocha
Cláudia
C
Hara
Cristina Vaz
CV
Rodrigues
Milena Antunes
MA
Costa
Erico
E
Castro e Costa
Cíntia
C
Fuzikawa
Valéria Guimarães
VG
Santos
D000293:Adolescent; D000328:Adult; D000368:Aged; D001938:Brazil; D005260:Female; D006760:Hospitalization; D006769:Hospitals, General; D006801:Humans; D007406:Interview, Psychological; D007902:Length of Stay; D008297:Male; D001523:Mental Disorders / Q000150:complications* / Q000453:epidemiology; D008875:Middle Aged; D015995:Prevalence; D007319:Sleep Initiation and Maintenance Disorders / Q000150:complications* / Q000453:epidemiology; D011795:Surveys and Questionnaires