Background: Transgender women (TGW) are susceptible to the acquisition of sexually transmitted infections (STIs), including human papillomavirus (HPV). Nonetheless, the exact data for this population are scarce. We estimated HPV positivity at the anal, genital, and oral sites among TGW and also identified the related characteristics and behaviors that could be risk factors for HPV infection in a sample of TGW in Brazil. Furthermore, we characterized the site-specific HPV genotypes among those who were positive for HPV at these 3 sites.
Methods:A cross-sectional study was conducted on TGW in Goiânia City (Central-Midwest region), Brazil, between April 2018 and August 2019. Respondent-driven sampling was applied for recruitment. Next, self-collected anal, genital, and oral samples were examined for HPV DNA using polymerase chain reaction (SPF-10 primer). Human papillomavirus genotypes were identified in 12 TGW.
Results:In the TGW included in the study, the anal, genital, and oral HPV positivity values were 77.2% (95% confidence interval [CI], 67.3%-84.6%), 33.5% (95% CI, 26.1%-48.9%), and 10.9% (95% CI, 5.8%-17.0%), respectively. In addition, the majority of 12 participants who tested for HPV had multiple genotypes. HPV-52 was the most prevalent genotype identified at the anal (66.6%) and genital (40.0%) sites, whereas HPV-62 and HPV-66 were the most common at the oral site (25.0%).Conclusions: A high HPV positivity was observed among TGW. Therefore, additional epidemiological studies on HPV genotypes should generate health intervention information, including the prevention, diagnosis, and treatment of sexually transmitted infections.H uman papillomavirus (HPV) is the most prevalent sexually transmitted pathogen globally. High-risk HPV genotypes are responsible for almost all cases of cervical cancer and several other anogenital, head, and neck cancers. 1,2 Annually, HPV accounts for 60,000 and 570,000 cases of cancers (including anal, penile, cervical, vaginal, vulvar, and oropharyngeal cancers) in men and women worldwide, respectively. Despite the availability of vaccines against HPV since 2006, cancers related to this virus continue to be a significant cause of morbidity and mortality in several regions worldwide, particularly in less developed countries. 1,3 It is interesting that an estimated 0.69% of the adult population in Brazil identifies as transgender, which represents approximately 1,090,200 Brazilians. 4 Transgender women (TGW) are vulnerable to the acquisition of sexually transmitted infections (STIs), including HPV; nonetheless, the precise data for this population are scarce. [5][6][7] Previous studies reported that the prevalence of HPV infection in TGW ranged from 77.9% to 97.4% for the anal area, 88.3% for anogenital HPV, and 9.1% for the oral cavity. [6][7][8] Only one study had previously reported a prevalence of 77.9% for anal HPVamong TGW in Brazil and identified HPV-16 as the most frequent genotype. 6 Nonetheless, no studies in Brazil have investigated HPV at 3 sites (anal, genital, and oral...