Fava G A, Pavan L
Gen Hosp Psychiatry. 1980 Mar;2(1):35-40. doi: 10.1016/0163-8343(80)90104-8.
Five-hundred consecutive referrals to the psychiatric consultation service at the University of Padua School of Medicine have been reviewed. In 69% of cases concurrent physical and psychiatric disorders were reported. There was a prevalence of females, working class patients, and individuals with limited schooling. Depression was the most common psychiatric disorder in all classes of organic disease and accounted for 37% of all psychiatric diagnoses, followed by anxiety neurosis (18.6%) and drug dependence (13.8%). In 10.8% of cases no psychiatric diagnosis was made.