The purpose of this study is to determine the frequency of renal and bone toxicity in HIV infected patients receiving antiretroviral therapy, and the outcome in terms of treatment change or/and virological failure, in relation with the presence of classical factors, such as diabetes or hypertension, the role of HIV itself, because of chronic inflammation, and the effects of antiretroviral medication.

This is a retrospective cohort study involving 300 patients to determine the frequency of renal and bone comorbidities/toxicity in a large population of HIV-infected patients receiving antiretroviral therapy, in order to establish the differential role of classical factors, HIV infection, or antiretroviral therapy.

Inclusion Criteria:

• Confirmed HIV infection

Exclusion Criteria:

• Pregnancy
• Prior therapy with antineoplastic chemotherapy or chronic treatment with corticosteroids
• Previous chronic therapy with antiresorptive bone therapy

HIV infected patients in active follow up, receiving antiretroviral therapy