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Supplemental Table from A Comparison of Human Papillomavirus Genotype-Specific DNA and E6/E7 mRNA Detection to Identify Anal Precancer among HIV-Infected Men Who Have Sex with Men
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posted on 2023-03-31, 13:41 authored by Philip E. Castle, Stephen Follansbee, Sylvia Borgonovo, Diane Tokugawa, Lauren M. Schwartz, Thomas S. Lorey, Brandon LaMere, Julia C. Gage, Barbara Fetterman, Teresa M. Darragh, Ana Cecilia Rodriguez, Nicolas WentzensenStudy population
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ARTICLE ABSTRACT
Background: Human papillomavirus (HPV) RNA detection is reportedly more specific for the detection of anogenital precancer than HPV DNA but it is unknown whether this is due to detection of RNA or due to HPV genotype restriction.Methods: A total of 363 human immunodeficiency virus (HIV)–positive men who have sex with men had two anal cytology samples taken and were evaluated using high-resolution anoscopy and biopsies of visible lesions. Anal specimens were tested for E6/E7 RNA for five carcinogenic HPV genotypes (HPV16, 18, 31, 33, and 45) and tested for the DNA of 13 carcinogenic HPV genotypes.Results: DNA testing was more likely to be positive than RNA testing (53% vs. 48%; P = 0.02) for the same five HPV genotypes in aggregate. When restricted to five HPV genotypes targeted by the RNA test, the sensitivity to detect anal precancer was the same for DNA and RNA (81%), whereas RNA was more specific than DNA (65% vs. 58%; P = 0.007). In comparison, DNA detection of all 13 carcinogenic HPV genotypes was more sensitive (96% vs. 81%; P = 0.001) but much less specific (65% vs. 33%; P < 0.001) as compared with RNA detection of the five HPV genotypes.Conclusion: After controlling for HPV genotypes, RNA was only slightly more specific than DNA detection for anal precancer.Impact: DNA or RNA testing for a subset of the most carcinogenic HPV genotypes may be useful for distinguishing between those HPV-positive men at higher and lower risk of anal precancer and cancer. Cancer Epidemiol Biomarkers Prev; 22(1); 42–9. ©2012 AACR.Usage metrics
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