Background-The optimal time for the initiation of antiretroviral therapy for asymptomatic patients with human immunodeficiency virus (HIV) infection is uncertain.
Evidence-based guidelines for the management of persons infected with human immunodeficiency virus (HIV) were prepared by an expert panel of the HIV Medicine Association of the Infectious Diseases Society of America. These updated guidelines replace those published in 2009. The guidelines are intended for use by healthcare providers who care for HIV-infected patients. Since 2009, new antiretroviral drugs and classes have become available, and the prognosis of persons with HIV infection continues to improve. However, with fewer complications and increased survival, HIV-infected persons are increasingly developing common health problems that also affect the general population. Some of these conditions may be related to HIV infection itself or its treatment. HIV-infected persons should be managed and monitored for all relevant age- and sex-specific health problems. New information based on publications from the period 2009-2013 has been incorporated into this document.
IMPORTANCE Antiretroviral therapy (ART) has improved life expectancy for individuals with HIV infection, but recent data comparing life span and comorbidity-free years by HIV status are lacking.
Objective
To evaluate the risk of cancers with and without a known infectious cause in HIV-infected persons.
Design
Retrospective cohort study.
Methods
Adult HIV-infected and matched HIV-uninfected members of Kaiser Permanente followed between 1996 and 2007 for incident AIDS-defining cancers (ADC), infection-related non-AIDS-defining cancers (NADC) (anal squamous cell, vagina/vulva, Hodgkin’s lymphoma, penis, liver, HPV-related oral cavity/pharynx, stomach) and infection-unrelated NADC (all other NADC).
Results
We identified 20,277 HIV-infected and 202,313 HIV-uninfected persons. HIV-infected persons experienced 552 ADC, 221 infection-related NADC, and 388 infection-unrelated NADC. HIV-uninfected persons experienced 179 ADC, 284 infection-related NADC, and 3,418 infection-unrelated NADC. The rate ratio (RR) comparing HIV-infected and HIV-uninfected persons for ADC was 37.7 (95% CI: 31.7–44.8), with decreases in the RR over time (p<0.001). The RR for infection-related NADC was 9.2 (95% CI: 7.7–11.1), also with decreases in the RR over time (p<0.001). These results were largely influenced by anal squamous cell cancer and Hodgkin’s lymphoma. The RR for infection-unrelated NADC was 1.3 (95% CI: 1.2–1.4), with no change in the RR over time (p=0.44). Among infection-unrelated NADC, other anal, skin, other head and neck, and lung cancer rates were higher and prostate cancer rates lower in HIV-infected persons. Among all infection-unrelated NADC, the RR decreased over time only for lung cancer (p=0.007).
Conclusions
HIV-infected persons are at particular risk for cancers with a known infectious cause, although the higher risk has decreased in the antiretroviral therapy era. Cancers without a known infectious cause are modestly increased in HIV-infected persons.
The proportion of overweight and obese adults in the United States and Canada has increased over the past decade, but temporal trends in body mass index (BMI) and weight gain on antiretroviral therapy (ART) among HIV-infected adults have not been well characterized. We conducted a cohort study comparing HIV-infected adults in the North America AIDS Cohort Collaboration on Research and Design (NA-ACCORD) to United States National Health and Nutrition Examination Survey (NHANES) controls matched by sex, race, and age over the period 1998 to 2010. Multivariable linear regression assessed the relationship between BMI and year of ART initiation, adjusting for sex, race, age, and baseline CD4+ count. Temporal trends in weight on ART were assessed using a generalized least-squares model further adjusted for HIV-1 RNA and first ART regimen class. A total of 14,084 patients from 17 cohorts contributed data; 83% were male, 57% were nonwhite, and the median age was 40 years. Median BMI at ART initiation increased from 23.8 to 24.8 kg/m2 between 1998 and 2010 in NA-ACCORD, but the percentage of those obese (BMI ≥30 kg/m2) at ART initiation increased from 9% to 18%. After 3 years of ART, 22% of individuals with a normal BMI (18.5–24.9 kg/m2) at baseline had become overweight (BMI 25.0–29.9 kg/m2), and 18% of those overweight at baseline had become obese. HIV-infected white women had a higher BMI after 3 years of ART as compared to age-matched white women in NHANES (p = 0.02), while no difference in BMI after 3 years of ART was observed for HIV-infected men or non-white women compared to controls. The high prevalence of obesity we observed among ART-exposed HIV-infected adults in North America may contribute to health complications in the future.
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