Incidence of Types of Cancer among HIV-Infected Persons Compared with the General Population in the United States, 1992–2003

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Abstract
Persons who are HIV-infected may be at higher risk for certain types of cancer than the general population. To compare cancer incidence among HIV-infected persons with incidence in the general population from 1992 to 2003. Prospective observational cohort studies. United States. 54 780 HIV-infected persons in the Adult and Adolescent Spectrum of HIV Disease Project (47 832 patients) and the HIV Outpatient Study (6948 patients), who contributed 157 819 person-years of follow-up from 1992 to 2003, and 334 802 121 records from the Surveillance, Epidemiology, and End Results program of 13 geographically defined, population-based, central cancer registries. Standardized rate ratios (SRRs) to compare cancer incidence in the HIV-infected population with standardized cancer incidence in the general population. The incidence of the following types of non–AIDS-defining cancer was significantly higher in the HIV-infected population than in the general population: anal (SRR, 42.9 [95% CI, 34.1 to 53.3]), vaginal (21.0 [CI, 11.2 to 35.9]), Hodgkin lymphoma (14.7 [CI, 11.6 to 18.2]), liver (7.7 [CI, 5.7 to 10.1]), lung (3.3 [CI, 2.8 to 3.9]), melanoma (2.6 [CI, 1.9 to 3.6]), oropharyngeal (2.6 [CI, 1.9 to 3.4]), leukemia (2.5 [CI, 1.6 to 3.8]), colorectal (2.3 [CI, 1.8 to 2.9]), and renal (1.8 [CI, 1.1 to 2.7]). The incidence of prostate cancer was significantly lower among HIV-infected persons than the general population (SRR, 0.6 [CI, 0.4 to 0.8]). Only the relative incidence of anal cancer increased over time. Lower ascertainment of cancer in the HIV cohorts may result in a potential bias to underestimate rate disparities. Tobacco use as a risk factor and the effect of changes in cancer screening practices could not be evaluated. The incidence of many types of non–AIDS-defining cancer was higher among HIV-infected persons than among the general population from 1992 to 2003.

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