Increased risk of anal squamous cell carcinoma in HIV-positive men with prior HBV infection

Aldersley, Jordan; Lorenz, David R.; Misra, Vikas; Uno, Hajime; Gabuzda, Dana

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Increased risk of anal squamous cell carcinoma in HIV-positive men with prior HBV infection

Published Date:

Jan 27 2019

Source:

AIDS. 33(1):145-152

Language:

English

[PDF-343.37 KB]

Details:

Personal Authors:

Aldersley, Jordan ; Lorenz, David R. ; Misra, Vikas ; Uno, Hajime ; Gabuzda, Dana ;

Keywords:

[+]

Pubmed ID:

30325778

Pubmed Central ID:

PMC6279494

Description:

Objective(s):

HIV-positive individuals have elevated rates of anal squamous cell carcinoma (SCC), and sexually transmitted infections with its causative agent, high-risk human papillomavirus, and other oncoviruses including hepatitis B virus (HBV). HBV infection can cause liver cancer, and has been associated with increased risk of some extra-hepatic cancers including biliary tract cancer, pancreatic cancer, and non-Hodgkin lymphoma. Whether HBV is associated with anal SCC risk is unknown.

Design:

Prospective study of anal SCC risk in HIV-positive and -negative men who have sex with men (MSM) in the Multicenter AIDS Cohort Study from 1984–2014.

Methods:

Poisson regression models were used to examine the association between past or current HBV infection (positive tests for HBV core antibodies, surface antigen, and/or DNA) and anal SCC risk.

Results:

We observed 53 cases of anal SCC among 5,298 participants with 79,334 person-years follow-up. Among HIV-positive men, past or current HBV infection was associated with anal SCC risk in models adjusted for age, CD4+ cell counts, HAART use, and other risk factors (incidence rate ratio [IRR], 95% confidence interval [CI] 3.15, 1.27–7.82). Additional risk factors included immunological parameters one and six years prior to diagnosis (IRR, 95% CI 2.45, 1.31–4.58 and 2.44, 1.3–4.59 for CD4+ counts <500 cells/μl; 2.43, 1.34–4.42 and 2.77, 1.5–5.11 for CD4:CD8 ratios <0.5, respectively). Among HIV-negative men, IRR for prior HBV and anal SCC risk was similar, but not significant due to small number of cases.

Conclusions:

HIV-positive MSM with prior HBV infection have increased anal SCC risk. This population may benefit from screening.

Document Type:

Journal Article

Collection(s):

CDC Public Access

Funding:

Main Document Checksum:

[+]

Supporting Files:

	nihms-1512748.nxml	text/xml
	NIHMS1512748-supplement-Supplemental_Digital_Content_1.pdf	application/pdf
	NIHMS1512748-supplement-Supplemental_Digital_Content_2.pdf	application/pdf
	NIHMS1512748-supplement-Supplemental_Digital_Content_3.pdf	application/pdf
	NIHMS1512748-supplement-Supplemental_Digital_Content_4.pdf	application/pdf

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