Comparative incidence of cancer in HIV-AIDS patients and transplant recipients.

Background: Studies have found a relationship between decreased immunity and increased incidence of cancer.

Methods: A systematic review of observational studies evaluating the incidence of cancer in both organ recipients and people with HIV/AIDS compared with the general population. Eligible studies were searched up to March 2011 in the following databases: Pubmed, Embase, Scielo, Cancerlit and Google scholar.