title: Acute psychiatric admission related to the menstrual cycle.
abstract: A study of menstrual cycle phase on the day of acute admission to a psychiatric hospital for 121 women aged 20-39 showed an unequal distribution of admissions. More admissions than expected took place in the menstrual period, and correspondingly fewer intermenstrually. The difference was significant, and points to a certain degree of cyclicity in female psychiatric disturbance. This cyclicity was not significantly influenced by age, diagnosis, oral contraceptives or tendency for premenstrual symptoms. In the age group 20-39 one and a half times as many men as women are admitted to Danish psychiatric departments. Thus, in view of a common baseline, the most conspicuous feature is, that remarkably few women were admitted intermenstrually.
mesh_terms: D000208:Acute Disease; D000328:Adult; D003276:Contraceptives, Oral / Q000494:pharmacology; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D008598:Menstruation; D001523:Mental Disorders / Q000503:physiopathology* / Q000523:psychology; D011293:Premenstrual Syndrome / Q000523:psychology; D013406:Suicide, Attempted / Q000523:psychology
chemical_list: D003276:Contraceptives, Oral