Context
Persons living with AIDS today remain at elevated cancer risk. Highly active antiretroviral therapy (HAART), widely available since 1996, prolongs life, but immune function is not fully restored.
Objectives
To assess long-term cancer risk among persons with AIDS relative to the general population and the impact of HAART on cancer incidence.
Design, Setting, and Subjects
Records of 263,254 adults and adolescents with AIDS (1980-2004) from 15 U.S. regions were matched to cancer registries to capture incident cancers during years 3-5 and 6-10 after AIDS onset.
Main Outcome Measure
Standardized incidence ratios (SIRs) assessed risks relative to the general population. Rate ratios (RRs) compared cancer incidence before and after 1996 to assess the impact of availability of HAART.
Results
Risk was elevated for the two major AIDS-defining cancers, Kaposi sarcoma (SIRs 5321 and 1347 in the 3-5 and 6-10 year periods, respectively) and non-Hodgkin lymphoma (SIRs 32 and 15). Incidence of both malignancies declined in the HAART era (1996-2006). Risk was elevated for all non-AIDS defining cancers combined (SIRs 1.7 and 1.6 in years 3-5 and 6-10, respectively), and for the following specific non-AIDS-defining cancers: cancers of the oral cavity/pharynx, tongue, anus, liver, larynx, lung/bronchus, and penis, and Hodgkin lymphoma. Anal cancer incidence increased between 1990-1995 and 1996-2006 (RR 2.9, 95%CI 2.1-4.0), as did Hodgkin lymphoma (RR 2.0, 95%CI 1.3-2.9).
Conclusion
Among people who survived an AIDS diagnosis for several years or more, we observed high risks of AIDS-defining cancers and increasing incidence of anal cancer and Hodgkin lymphoma.