Monthly first-contact data from the Groningen Psychiatric Case Register were used to study seasonal variation in the care-based incidence of psychiatric morbidity.
Both overall and diagnosis-specific rates for a 15-year period (1976-1990) were examined.
Regression analysis of overall rates revealed significant monthly deviations from the linear trend.
Inspection of diagnosis-specific rates showed that the monthly number of first contacts varied most in patients with relatively mild psychiatric problems such as neuroses.
Seasonal variation is believed to be a consequence of both fluctuations in true psychiatric morbidity and'holiday effects'on supply of services and/or the inclination to ask for help.
The relative influence of holiday effects is assumed to be inversely related to psychiatric severity.
Mots-clés Pascal : Trouble psychiatrique, Variation saisonnière, Admission hôpital, Incidence, Epidémiologie, Pays Bas, Europe, Homme
Mots-clés Pascal anglais : Mental disorder, Seasonal variation, Hospital admission, Incidence, Epidemiology, Netherlands, Europe, Human
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0152161
Code Inist : 002B18C14. Création : 21/07/1998.