학술논문

Association of Immunosuppression and Human Immunodeficiency Virus (HIV) Viremia With Anal Cancer Risk in Persons Living With HIV in the United States and Canada.
Document Type
article
Source
Clinical Infectious Diseases. 70(6)
Subject
Medical Microbiology
Biomedical and Clinical Sciences
Immunology
HIV/AIDS
Infectious Diseases
Prevention
Cancer
Aetiology
2.1 Biological and endogenous factors
Infection
Good Health and Well Being
Anus Neoplasms
CD4 Lymphocyte Count
Canada
HIV
HIV Infections
Humans
Immunosuppression Therapy
United States
Viral Load
Viremia
HIV infection
CD4+T-cell count
HIV-1 RNA viral load
anal cancer
risk
North American AIDS Cohort Collaboration on Research and Design of the International Epidemiologic Databases to Evaluate AIDS
CD4+ T-cell count
Biological Sciences
Medical and Health Sciences
Microbiology
Clinical sciences
Language
Abstract
BackgroundPeople living with human immunodeficiency virus (HIV; PLWH) have a markedly elevated anal cancer risk, largely due to loss of immunoregulatory control of oncogenic human papillomavirus infection. To better understand anal cancer development and prevention, we determined whether recent, past, cumulative, or nadir/peak CD4+ T-cell count (CD4) and/or HIV-1 RNA level (HIV RNA) best predict anal cancer risk.MethodsWe studied 102 777 PLWH during 1996-2014 from 21 cohorts participating in the North American AIDS Cohort Collaboration on Research and Design. Using demographics-adjusted, cohort-stratified Cox models, we assessed associations between anal cancer risk and various time-updated CD4 and HIV RNA measures, including cumulative and nadir/peak measures during prespecified moving time windows. We compared models using the Akaike information criterion.ResultsCumulative and nadir/peak CD4 or HIV RNA measures from approximately 8.5 to 4.5 years in the past were generally better predictors for anal cancer risk than their corresponding more recent measures. However, the best model included CD4 nadir (ie, the lowest CD4) from approximately 8.5 years to 6 months in the past (hazard ratio [HR] for