Low bone mineral density in institutionalized patients with HIV and psychiatric co-morbidity.

Osteoporosis occurs in HIV-infected patients as well as in common psychiatric conditions and causes significant morbidity. There are no published studies assessing bone mineral density (BMD) in institutionalized HIV patients with associated psychiatric disorders. We analyzed 51 subjects in a case control study: 17 HIV patients (males or pre-menopausal females) with psychiatric co-morbidity and a long-term antipsychotic and antiretroviral therapy; and 34 control healthy subjects, not infected with HIV, matched with patients by age and sex. The results show that the HIV group had significantly higher rates of pathological T-scores, as compared with the controls (71% vs. 9% p<0.001). Chronic mental illness may represent a possible important co-factor influencing BMD in HIV patients. We suggest that fracture risk should be carefully evaluated for institutionalized HIV patients with psychiatric co-morbidity.