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Objective: To understand the narratives of transgender women and travestis (TGW) from four Brazilian cities regarding access to and use of health services., Methods: Qualitative study carried out within the scope of the TransOdara project, cross-sectional multicenter mixed methods research conducted between 2019-2021. Fifty-two in-depth interviews with TGW in Manaus, Campo Grande, Porto Alegre and São Paulo were analyzed. The analysis was guided by philosophical hermeneutics., Results: Reports of discrimination, stigmatization and pathologization reiterate the difficulties faced by TGW in seeking healthcare. The recurrence of disrespect for the social/corrected name reveals obstacles to the recognition of transgender identities and, in some cases, the intention of inhibiting transsexuality-travestilidade. Other difficulties arise from actions that disregard the health specificities of TGW or the precarious social conditions that affect some of them. On the other hand, based on experiences of respect and adequate care, participants identify an ongoing change, which is expressed in greater availability of services and improved assistance. There is an expectation of continued expansion of services, technologies and training of health professionals., Conclusions: The identified change has been undertaken at the interface of public health policies with LGBT+ activism and the production of knowledge about TGW health needs. Although the identified advances are insufficient to change the scenario of the historical exclusion experienced by TGW in health services, they point to promising ways to improve their health conditions.

Objective: This study aimed to determine the acceptability and factors associated with uptake of a physical examination for the detection of symptomatic sexually transmitted infections (STIs) by transgender women and travestis in Brazil., Methods: TransOdara was a multi-centric, cross-sectional STI prevalence study conducted among transgender women and travestis in five capital cities (Campo Grande, Manaus, Porto Alegre, Salvador and São Paulo) representing all Brazilian regions, between December 2019 and July 2021. A total of 1,317 self-identified transgender women and travestis aged ≥18 years were recruited using respondent-driven sampling and responded to a standard questionnaire. A medical consultation was offered including a physical examination and collection of samples from multiple sites to detect various STIs. Factors associated with uptake were investigated by reviewing demographic characteristics of participants who gave permission for physical examination (general, genital, and anorectal)., Results: Most participants (65.4%, 95% confidence interval - 95%CI 62.7-68.0) gave permission for a general examination (including oropharyngeal), with fewer permitting genital (42.3%, 95%CI 39.6-46.0) or anorectal (42.1%, 95%CI 39.4-44.9) examinations. Overall, 34.4% (95%CI 31.8-37.0) of participants refused all examinations. Participants with STI symptoms were significantly more likely to give permission for full examination than asymptomatic participants (64.3 vs. 37.4%, adjusted odds ratio - AOR=3.6, 95%CI 2.4-5.5). Other factors significantly associated with uptake of a full examination in multivariate analysis included age (AOR=1.5 for ≥25 years), religion (AOR=1.7 for Afro-Brazilian, AOR=1.9 for other religions compared to no religion), and education (AOR=2.0 for higher-level)., Conclusion: In the context of STI management, this study found limited acceptance of anogenital examinations among transgender women and travestis, with higher acceptance among those with STI symptoms.

Objective: The aim of this study was to investigate the prevalence of human immunodeficiency virus (HIV) infection among transgender women and travestis and to analyze factors associated with HIV infection in Brazil., Methods: TransOdara was a cross-sectional study on sexually transmitted infections among transgender women and travestis in five Brazilian cities between 2019 and 2021. Self-identified transgender women and travestis aged ≥18 years were recruited using respondent-driven sampling, completed an interviewer-led questionnaire, and provided samples to detect HIV. The outcome was the result of the rapid antigen testing for HIV. Adjusted prevalence ratios (aPR) and 95% confidence intervals (95% CI) were obtained using Poisson regression with robust variance., Results: Overall, this population was found to be especially vulnerable, with high levels of unstable housing and engagement in informal work. They usually resort to transactional sex as their main working activity. Half of them earned less than the Brazilian minimum wage, which characterizes a poor population living in dire conditions. The overall HIV prevalence was 34.40%. In the final model, the variables associated with the HIV prevalence were as follows: to be 31 years old or older, not studying at the moment they were interviewed, to be unemployed, and engaged in lifetime transactional sex., Conclusion: We found disproportionately high HIV prevalence among transgender women and travestis, compared with a low prevalence among respective segments of Brazil's general population, which highlights the context of vulnerability in this population. The data point to the urgency for intensification and expansion of access to HIV prevention and strategies to stop discrimination in health care (among other services and contexts) and provide comprehensive services for this population.

Objective: To identify groups of transgender women and travestis (TGW) with specific patterns of gender-based discrimination (GBD) and analyze the factors associated with GBD., Methods: A cross-sectional study was conducted with TGW recruited through respondent-driven sampling in five Brazilian cities (2019-2021). Latent class analysis was used to characterize GBD (low, medium, and high) using 14 observable variables. Descriptive analysis was performed, and associations between predictor variables and GBD were estimated by adjusted odds ratios (aOR) using ordinal logistic regression., Results: Out of a total of 1,317 TGW, 906 (68.8%) answered questions about GBD. Most were under 34 years old, single, and had a Brown race/skin color. GBD was classified as "low," "medium," and "high," with estimates of 41.7, 44.5, and 13.8%, respectively. Variables positively associated with higher intensity of GBD included living in Manaus compared to São Paulo, being ≤34 years old compared to >34, being homeless compared to living in one's own house or rented apartment, not having legally changed one's name compared to those who had, and reporting physical or sexual violence compared to those who did not report. Variables negatively associated with higher intensity of GBD included having a Brown or Asian race/skin color compared to White and a monthly income ≥1 minimum wage compared to ³1., Conclusion: A high proportion of GBD was observed in Brazilian TGW, with this outcome associated with more vulnerable sociodemographic characteristics and a history of violence.

Objective: To estimate the prevalence and factors associated with hepatitis A, B, and C in transgender women and travestis's networks, in 5 regions of Brazil., Methods: This cross-sectional study includedtransgender women and travestis in five Brazilian capitals (Campo Grande, Manaus, Porto Alegre, Salvador, and São Paulo), between December/2019 and July/2021. All samples were subjected to detection of serological markers of hepatitis virus A (HAV), B (HBV), and C (HCV) infections through rapid tests and chemiluminescent microparticle immunoassays. Positive samples in the screening tests were submitted to detect HBV DNA and HCV-RNA by real-time PCR and genotyped by Sanger sequencing., Results: Analysis of 1,317 samples showed network prevalence rates of 69.1%, 25.1%, and 1.5% for HAV, HBV, and HCV exposure, respectively. A high susceptibility rate to HBV infection (35.7%) and low prevalence of vaccine response markers (40%) were also observed. Age greater than 26 years, self-declared black/brown skin color, having only primary education, history of incarceration, and use of a condom in the last sexual intercourse with a casual partner were associated with total anti-HAV. Exposure to HBV was associated with age greater than 26 years, self-declared black/brown, history of being a sex worker, and incarceration. Age > 37 years, history of sexual abuse, and frequent alcohol consumption were associated with hepatitis C infection., Conclusion: The highest prevalence of HAV in this population was found in the North and Northeast regions, and the prevalence found was higher than that in the general population, suggesting greater vulnerability. The prevalence of HCV infection in our study was similar to that observed in the general population.

Objective: The study aimed to estimate the prevalence of acquired syphilis and associated factors in a national survey., Methods: TransOdara was a cross-sectional study comprising transgender women and travestis (TGW) in five major cities in Brazil during December of 2019 and July of 2021. The sample was recruited using the respondent-driven sampling (RDS) method. The outcome "active syphilis" was defined as a positive treponemal test and Venereal-Disease-Research-Laboratory (VDRL) title greater than∕ equal to ⅛. Sociodemographic variables were described. Bivariate and multiple logistic regression were performed, and odds ratios (OR) and 95% confidence intervals (95%CI) were estimated. All analyses were performed in R, 4.3.1., Results: A total of 1,317 TGW were recruited, with 1,291 being tested for syphilis, and 294 (22.8%) meeting the criteria for active syphilis. In bivariate analysis, black/mixed race (OR=1.41, 95%CI 1.01-1.97), basic level of education (OR=2.44, 95%CI 1.17-5.06), no name change in documents (OR=1.39, 95%CI 1.00-1.91) and sex work (past only OR= 2.22, 95%CI 1.47-3.32; partial OR=2.75, 95%CI 1.78-4.25; full time OR=3.62, 95%CI 2.36-5.53) were associated with active syphilis. In the multivariate analysis, sex work was the only associated factor, 2.07 (95%CI 1.37-3.13) past sex work, 2.59 (95%CI 1.66-4.05) part-time sex work and 3.16 (95%CI 2.04-4.92) sex work as the main source of income., Conclusion: The prevalence of active syphilis in this study was elevated compared with other countries in Latin America. Sex work was an important associated factor with active syphilis, highlighting the impact that this condition of vulnerability may have in the health of TGW, as members of a key, marginalized population.

Objective: To estimate the prevalence of concomitant substance consumption and analyze associated risk factors in a non-probabilistic sample of the Brazilian population of transgender women and travestis., Methods: A cross-sectional study was conducted with recruitment via respondent-driven sampling. The sample included transgender women and travestis residing in São Paulo, Porto Alegre, Salvador, Manaus, and Campo Grande, aged 18 years or older, between 2019 and 2021. The outcome was the concomitant use of licit and illicit substances. The association between sociodemographic/behavioral factors and the outcome was analyzed through Poisson regression with mixed effects. Adjusted prevalence ratios (confidence interval of 95% - 95%CI) were estimated., Results: The prevalence in the last 12 months of multiple substance use was 49.3%, of which 65.5% were alcohol, 52.9% tobacco, and 40.1% marijuana. Transgender women and travestis who use multiple substances face more violence (1.71; 95%CI 1.14-2.55), unemployment (1.58; 95%CI 1.05-2.37) and pervasive unstable work status (1.52; 95%CI 1.08-2.14), transactional sex (1.51; 95%CI 1.21-1.88) which can be their sole option to make a living, and are aged 18 to 24 years (1.37; 95%CI 1.14-1.65)., Conclusion: The use of multiple substances may be an attempt to cope with distress and marginalization. Substance use has been associated with multiple harms and medical conditions. Comprehensive management and care should be provided, as defined by the key principles of the Brazilian Unified Health System. Health care should be integrated into structural interventions.

Objective: To analyze the experiences of transgender women and travestis regarding the use of hormones for body changes without a medical prescription., Methods: This is a cross-sectional, quantitative and qualitative study, using data from "TransOdara", which estimated the prevalence of Sexually Transmitted Infections in transgender women and travestis recruited through Respondent-Driven Sampling, between December 2019 and July 2021, in São Paulo, Campo Grande, Manaus, Porto Alegre, and Salvador, Brazil. The main outcome was: use of hormones without medical prescription and associated risk factors. Descriptive analysis, mixed univariate logistic regression models, and semi-structured interviews were carried out., Results: Of the 1,317 recruited participants, 85.9% had already used hormones. The current use of hormones was reported by 40.7% (536) of them. Of those who were able to inform the place where they obtained them, 72.6% (381/525) used them without a medical prescription. The variables associated with the outcome were: current full-time sex work (OR 4.59; 95%CI 1.90-11.06) or in the past (OR 1.92; 95%CI 1.10-3.34), not having changed their name (OR 3.59; 95%CI 2.23-5.76), not currently studying (OR 1.83; 95%CI 1.07-3.13), being younger (OR 2.16; 95%CI 1.31-3.56), and having suffered discrimination at some point in life for being a transgender women and travestis (OR 0.40; 95%CI 0.20-0.81)., Conclusion: The use of nonprescribed hormones is high among transgender women and travestis, especially among those who are younger, did not study, have not changed their name, and with a history of sex work. This use is related to the urgency for gender transition, with excessive use and damage to health.

Objective: To investigate the prior testing for HIV, syphilis, hepatitis B (HBV), and hepatitis C (HCV) among transgender women and travestis (TGW) in five Brazilian cities and identify factors associated with each of these previous tests., Methods: This is a cross-sectional study with the recruitment of TGW through respondent-driven sampling (TransOdara Study). The investigated outcome variable was prior testing for HIV, syphilis, HBV, and HCV in the last 12 months. The association between sociodemographic and behavioral factors with the outcome was analyzed using a binomial logistic regression with mixed effects. Adjusted odds ratios (aOR) and 95% confidence intervals (CI95%) were estimated., Results: The proportions of individuals with prior testing in the past year were as follows: 56.3% for HIV, 58.0% for syphilis, 42.1% for HBV, and 44.7% for HCV. Negative associations with prior testing were observed for individuals aged 35 years or older, whereas positive associations were found for those with high school education, those who experienced verbal or psychological violence in the last 12 months, and those who had commercial or casual partners in the last 6 months., Conclusion: There was low frequency of testing in the 12 months preceding the study for HIV, syphilis, HBV, and HCV compared to the guidelines established by the Ministry of Health. Expanding access to and engagement with healthcare and prevention services for TGW is an essential strategy in reducing the transmission chain of HIV and other sexually transmitted infections (STIs).

Objective: To describe the prevalence, characteristics, and factors associated with sexual violence in transgender women and travestis (TGW) in Brazil., Methods: This cross-sectional study was conducted in five Brazilian cities (Campo Grande, Manaus, Porto Alegre, Salvador, and São Paulo) between 2019 and 2021. Participants were recruited using the respondent-driven sampling (RDS) technique. The outcome of interest is the self-reported experience of sexual violence throughout the respondents' lifetime. We evaluated the actions taken by victims of sexual violence and how they dealt with the experience. Logistic regression analysis was employed to examine the associations between sociodemographic and behavioral factors (such as race, income, drug use, sex work, and access to healthcare) and the outcome., Results: A total of 1,317 TGW were interviewed. Among them, 53% (n=698) reported experiencing sexual violence. For 64.4% (n=419) of the respondents, sexual violence occurred on more than one occasion. The majority of TGW did not seek health services (93.2%, n=648), disclose the violence (93.9%, n=653), nor seek support from family or friends (86.5%, n=601). A higher prevalence of sexual violence was associated with homelessness (adjusted prevalence ratio - aPR=1.69, 95% confidence interval - 95%CI 1.01-2.84), a history of engaging in sex work (aPR=2.04, 95%CI 1.46-2.85), self-reporting regular, bad, or very bad emotional health (aPR=1.67, 95%CI 1.28-2.19), and experiencing difficulties accessing health services in the previous year (aPR=2.78, 95%CI 1.74-4.43)., Conclusion: The high prevalence of sexual violence, analyzed together with the actions of the victims, indicates a context of high vulnerability and low institutional support. In this scenario, violence can be exacerbated, resulting in severe health consequences.

Objective: Sexually transmitted infections (STIs) disproportionately affect transgender women and travestis (TGW), who often lack access to healthcare due to stigma and discrimination. We describe the approach and methodology of a study investigating the prevalence of syphilis, HIV, hepatitis A, B, and C, Neisseria gonorrhoeae (NG), Chlamydia trachomatis (CT), and human papillomavirus (HPV) among TGW, as well as their knowledge and perceptions regarding syphilis, to better inform policies to curb STIs among this vulnerable population., Methods: TransOdara was a multicentric, cross-sectional study conducted among TGW in five capital cities from major Brazilian regions between December 2019 and July 2021. Self-identified transgender women and travestis aged >18 years were recruited using respondent-driven sampling after a qualitative formative phase, completed an interviewer-led questionnaire, were offered a physical examination, and were also asked to provide samples from multiple sites to detect various STIs, starting vaccination and treatment when indicated., Results: A total of 1,317 participants were recruited from the five study locations: Campo Grande (n=181, 13.7%), Manaus (n=340, 25.8%), Porto Alegre (n=192, 14.6%), Salvador (n=201, 15.3%), and São Paulo (n=403, 30.6%). The recruitment period varied at each study location due to logistic constraints imposed by the COVID-19 pandemic., Conclusion: Despite the enormous challenges posed by the co-occurrence of the COVID-19 pandemic and field work targeting a vulnerable, elusive, and scattered population, the TransOdara project has been effectively implemented. Caveats did not preclude 1,300 TGW from being interviewed and tested, amid a significant epidemic that disrupted health services and research projects in Brazil and worldwide.

Objective: To estimate the prevalence and factors associated with the detection of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) in transgender women and travestis in five Brazilian capitals., Methods: Data were obtained from a cross-sectional study conducted between 2019 and 2021, with participants recruited through Respondent Driven Sampling in São Paulo, Campo Grande, Manaus, Porto Alegre and Salvador. Detection of CT and NG was analyzed at three collection sites (anorectal, oropharyngeal and urethral). Mixed logistic regression models were employed to identify associated factors., Results: A total of 1,297 recruited participants provided biological material to detect these infections. The prevalences of CT, NG and coinfection were 11.5%, 13.3% and 3.6%, respectively. Independent associations with CT infections included past (OR=1.73; 95%CI 1.02-2.95), current (OR=2.13; 95%CI 1.23-3.69), and part-time sex work (OR=2.75; 95%CI 1.60-4.75), as well as lifetime injectable drug use (OR=3.54; 95%CI 1.49-8.40). For NG, associations were observed with lifetime injectable drug use (OR=1.91; 95%CI 1.28-2.84) and sexual orientation, including heterosexual (OR=3.44; 95%CI 1.35-8.82), homosexual (OR=5.49; 95%CI 1.89-15.97), and bisexual (OR=3.21; 95%CI 1.06-9.68). Coinfection was associated with use of illicit drugs in the last 12 months (OR=2.34, 95%CI 1.10-5.00), and younger age was associated with all investigated outcomes., Conclusion: Estimated prevalences of CT, NG and co-infection were higher among transgender women and travestis compared to the general population, particularly among younger, individuals engaged in sex work and illicit drug use.

Introduction: Globally, transgender ('trans') women experience extreme social and economic marginalisation due to intersectional stigma, defined as the confluence of stigma that results from the intersection of social identities and positions among those who are oppressed multiple times. Among trans women, gender-based stigma intersects with social positions such as engagement in sex work and substance use, as well as race-based stigma to generate a social context of vulnerability and increased risk of HIV acquisition. In Brazil, trans women are the 'most at-risk' group for HIV, with 55 times higher estimated odds of HIV infection than the general population; further, uptake of HIV testing and pre-exposure prophylaxis (PrEP) among trans women is significantly lower than other at-risk groups. Through extensive formative work, we developed Manas por Manas, a multilevel intervention using HIV prevention strategies with demonstrated feasibility and acceptability by trans women in Brazil, to address intersectional stigma and increase engagement in the HIV prevention continuum., Methods and Analysis: We are conducting a two-arm randomised wait-list controlled trial of the intervention's efficacy in São Paulo, Brazil, to improve uptake of HIV testing and PrEP among transgender women (N=400). The primary outcomes are changes in HIV testing (self-testing and clinic based), changes in PrEP uptake and changes in PrEP persistence at baseline and follow-up assessment for 12 months at 3-month intervals., Ethics and Dissemination: This study was approved by University of California, San Francisco Institutional Review Board (15-17910) and Comissão Nacional de Ética em Pesquisa (Research Ethics National Commission, CAAE: 25215219.8.0000.5479) in Brazil. Participants provided informed consent before enrolment. We are committed to collaboration with National Institutes of Health officials, other researchers, and health and social services communities for rapid dissemination of data and sharing of materials. The results will be published in peer-reviewed academic journals and scientific presentations., Trial Registration Number: NCT03081559., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)

Purpose: We assessed whether anticipated stigma (i.e., fear of public mistreatment due to gender identity) impacts communication between transgender women (TGW) living with HIV and health care providers. Methods: This is a secondary analysis of baseline data from Trans Amigas , a study conducted in Brazil, 2018. The study population consisted of TGW living with HIV, older than 18 years, residing in the São Paulo metropolitan area. We used multivariable logistic regression ( α  = 0.05), mediation, and bootstrapping for the analysis. Results: One hundred and thirteen participants completed the study. Fear of public mistreatment had an adjusted odds ratio (aOR) of 7.42 ( p  = 0.003) for difficulty reporting new symptoms to providers. Concerning fear of public mistreatment, we found that unemployment had an aOR of 3.62 ( p  = 0.036); sex work, an aOR of 2.95 ( p  = 0.041); and issues related to name change in documents, an aOR of 2.71 ( p  = 0.033). For the indirect effect on difficulty reporting new symptoms, mediated by fear of public mistreatment, unemployment had an aOR of 1.52 (confidence interval [CI] = 0.88-2.24); sex work, an aOR of 1.48 (CI = 0.81-2.52); and name change issues, an aOR of 1.47 (CI = 0.96-2.43). Conclusions: Anticipated stigma was associated with communication difficulties between TGW living with HIV and providers. Our data suggest that structural factors associated with anticipated stigma could indirectly impact on difficulty reporting new symptoms. These findings indicate the importance of considering social contexts that intersect with individual experiences when analyzing communication barriers between providers and patients, and the need to strengthen social policies for TGW in Brazil. Clinical Trial Registration number: R34MH112177.

Travestis and transgender women (TrTGW) constitute the groups with the highest HIV prevalence in the world, with higher probability of infection compared with the general population and lower adherence to prevention and treatment strategies than other vulnerable groups. Considering these challenges, this study describes the factors associated with the retention of TrTGW with HIV to the TransAmigas project. Participants were recruited from April 2018 to September 2019 in a public health service in São Paulo, Brazil. A total of 113 TrTGW were randomly assigned to either a peer navigation intervention (75) or a control group (38) and followed up for nine months. To analyze the association between the selected variables and the outcome ("retention at nine months", regardless of contact at three months, defined by the "full completion of the final questionnaire"), bivariate and multivariate logistic regression models were used. Peer contact forms were qualitatively assessed to validate and complement the previous selection of quantitative component variables. Of the 113 participants, 79 (69.9%) participated in the interview after nine months, of which 54 (72%) were from the intervention group and 25 (66%) from the control group. In the final multivariate model, contact at three months (adjusted odds ratio - aOR = 6.15; 95% confidence interval - 95%CI: 2.16-17.51) and higher schooling level (≥ 12 years) (aOR = 3.26; 95%CI: 1.02-10.42) remained associated with the outcome, adjusted by race/skin color, age ≤ 35 years, and HIV serostatus disclosure. Future studies with TrTGW should include contact at regular intervals, with additional efforts aimed at participants with lower schooling level.

Purpose: The purpose of this study was to determine the prevalence and correlates of nonprescription hormone use among Brazilian trans women. Methods: This study is a cross-sectional survey of trans women in São Paulo, Brazil, recruited by respondent-driven sampling in 2017-2019. Results: Of 790 trans women, 36.8% were taking nonprescribed hormones. Nonprescribed hormone use was higher with younger age, lower education, homelessness, and using estrogen plus progesterone. Lower use was associated with accessing health care and having trans-specific health needs met. Conclusion: Marginalized Brazilian trans women exhibit high use of nonprescription hormones, which may have health consequences and requires further examination and research.

The transgender population encounters several barriers in entering the labor market, whichfurther impacts their health. In this cross-sectional study, the factors associated with their insertion in the formal job market were analyzed. Participants were recruited in seven municipalities of the state of São Paulo between 2014 and 2015. Logistic regression was used to estimate the odds ratios (OR) of the association between formal insertion and selected characteristics. We included 672 individuals, of which 82.3% were working, 13.1% were not employed, and 4.6% were not in the labor market. Among those working, only 16.7% were in the formal labor market. Factors independently associated with formal employment were: being atrans man, having 12 years or more of education, being under follow-up for gender transition procedures in the healthcare services, having private health insurance, and never having been arrested. Our results highlightpart of the obstacles the transgender population has toovercome to enter the labor market, and point to the need for public policies specifically designed for the transgender population aiming to reduce school dropout and expand access to comprehensive health care, thereby reducing theirvulnerability.

This article sought to estimate factors associated with the psychological well-being of transvestites and trans women. It is a cross-sectional study with 602 transvestites and trans individuals in seven cities in the state of São Paulo, Brazil from 2014 to 2015. We carried out a sample selection through a consecutive approach and using the snowball technique. The dependent variable was psychological well-being (WHOQOL-BREF) and the independent variables were: sociodemographic characteristics, body modifications, health conditions, violence and incarceration. We used a multiple variance analysis to identify associated factors. Most were black or brown and were aged between 25 and 39 years, had up to complete secondary education, individual income of up to two times the minimum wage and worked, and 42.3% were sex workers. Around one-quarter had been incarcerated. Around one-quarter were in treatment for HIV. Mean psychological well-being score was 63.2 (95%CI: 61.8-64.6). In the multiple analysis, the factors associated with lower psychological well-being were: not having a fixed address, having lower educational levels, being dissatisfied with personal relationships, friend support or the gender-affirming procedures they had undergone and having suffered verbal or sexual violence. While worse living conditions and exposure to violence harm the psychological well-being of transvestites and trans women, the possibility of undergoing desired body transformations and having their social name respected interfere positively in their evaluations of their lives.

This study aimed to estimate the prevalence of use of industrial liquid silicone (ILS) among transvestite persons and transsexual women and identify associated factors. This was a cross-sectional study in seven municipalities in São Paulo State, Brazil, with data collected in 2014 and 2015 in a sample of 576 individuals. Analysis of the associated factors used a Poisson model with robust variance to estimate the crude and adjusted prevalence ratios. Prevalence of use of ILS was 49%, mean age at first injection of ILS was 22 (± 5.3) years, and 43% reported health problems resulting from its use. Having less than a university education, age 20 years and older, self-identification as transvestite, and sex work were positively associated with use of ILS according to the multivariate model. There was a high prevalence of ILS use and resulting health problems, indicating the need to prevent its use and reduce the resulting health problems. It is thus essential to ensure access to the necessary resources for body changes during transition through comprehensive care for transvestites and transsexual persons in the Brazilian Unified National Health System (SUS). Finally, health policies should include demands for body changes as part of gender identity construction, respecting each person's unique needs in this transition process.