Cumulative incidence of cancer among persons with HIV in North America: a cohort study

MJ Silverberg, B Lau, CJ Achenbach, Y Jing… - Annals of internal …, 2015 - acpjournals.org
MJ Silverberg, B Lau, CJ Achenbach, Y Jing, KN Althoff, G D'Souza, EA Engels, NA Hessol…
Annals of internal medicine, 2015acpjournals.org
Background: Cancer is increasingly common among persons with HIV. Objective: To
examine calendar trends in cumulative cancer incidence and hazard rate by HIV status.
Design: Cohort study. Setting: North American AIDS Cohort Collaboration on Research and
Design during 1996 to 2009. Participants: 86 620 persons with HIV and 196 987 uninfected
adults. Measurements: Cancer type–specific cumulative incidence by age 75 years and
calendar trends in cumulative incidence and hazard rates, each by HIV status. Results …
Background
Cancer is increasingly common among persons with HIV.
Objective
To examine calendar trends in cumulative cancer incidence and hazard rate by HIV status.
Design
Cohort study.
Setting
North American AIDS Cohort Collaboration on Research and Design during 1996 to 2009.
Participants
86 620 persons with HIV and 196 987 uninfected adults.
Measurements
Cancer type–specific cumulative incidence by age 75 years and calendar trends in cumulative incidence and hazard rates, each by HIV status.
Results
Cumulative incidences of cancer by age 75 years for persons with and without HIV, respectively, were as follows: Kaposi sarcoma, 4.4% and 0.01%; non-Hodgkin lymphoma, 4.5% and 0.7%; lung cancer, 3.4% and 2.8%; anal cancer, 1.5% and 0.05%; colorectal cancer, 1.0% and 1.5%; liver cancer, 1.1% and 0.4%; Hodgkin lymphoma, 0.9% and 0.09%; melanoma, 0.5% and 0.6%; and oral cavity/pharyngeal cancer, 0.8% and 0.8%. Among persons with HIV, calendar trends in cumulative incidence and hazard rate decreased for Kaposi sarcoma and non-Hodgkin lymphoma. For anal, colorectal, and liver cancer, increasing cumulative incidence, but not hazard rate trends, were due to the decreasing mortality rate trend (−9% per year), allowing greater opportunity to be diagnosed. Despite decreasing hazard rate trends for lung cancer, Hodgkin lymphoma, and melanoma, cumulative incidence trends were not seen because of the compensating effect of the declining mortality rate.
Limitation
Secular trends in screening, smoking, and viral co-infections were not evaluated.
Conclusion
Cumulative cancer incidence by age 75 years, approximating lifetime risk in persons with HIV, may have clinical utility in this population. The high cumulative incidences by age 75 years for Kaposi sarcoma, non-Hodgkin lymphoma, and lung cancer support early and sustained antiretroviral therapy and smoking cessation.
Primary Funding Source
National Institutes of Health.
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