Hepatitis among psychiatric inpatients: a high-risk group?

Viral hepatitis B (HBV) and C (HCV) have been reported to be prevalent among residents of custodial institutions and health-care workers. Among psychiatric inpatients sparse research was undertaken and results are controversial. We designed the present study to evaluate rates of HBV and HCV among psychiatric inpatients and to characterize the "typical" carriers. All newly admitted patients to the Y. Abarbanel Mental Health Center who were judged by the admitting psychiatrist to be at high-risk underwent laboratory tests for acute and chronic HBV and/or HCV. The period covered in the present study was from January 1993 to December 1995. Inclusion in the high-risk group was based on one (or more) of the following: history of blood transfusion; I.V. drug abuse; homosexuality; promiscuous sexuality; prostitution; positive HIV test. Of 1327 newly admitted patients, 121 (9.1%) were clinically judged to be at risk. Of these 42 (34.7%) were positive for HBV (37/42) or HCV (5/42). The mean age among infected patients was 37.1+11.6 years; the majority were males (30/42) and the most frequent psychiatric illness was schizophrenia (24/42). In more than half (26/42) of the infected patients the clinical judgement of risk was promiscuous sexuality.Although as a group psychiatric patients newly admitted for treatment do not seem to constitute high risk for HBC and/or HCV carries, sexual promiscuosity should prompt psychiatrists to test for possible hepatitis infections in order to reduce risk to other inpatients and staff.