Andressa Mueller

BIRTH ORDER AND ANDROPHILIC MALE-TO-FEMALE TRANSSEXUALISM IN BRAZIL

Previous research has indicated that biological older brothers increase the odds of androphilia in males. This finding has been termed the fraternal birth order effect. The maternal immune hypothesis suggests that this effect reflects the progressive immunization of some mothers to male-specific antigens involved in fetal male brain masculinization. Exposure to these antigens, as a result of carrying earlier-born sons, is hypothesized to produce maternal immune responses towards later-born sons, thus leading to female-typical neural development of brain regions underlying sexual orientation. Because this hypothesis posits mechanisms that have the potential to be active in any situation where a mother gestates repeated male fetuses, a key prediction is that the fraternal birth order effect should be observable in diverse populations. The present study assessed the association between sexual orientation and birth order in androphilic male-to-female transsexuals in Brazil, a previously unexamined population. Male-to-female transsexuals who reported attraction to males were recruited from a specialty gender identity service in southern Brazil (n=118) and a comparison group of gynephilic non-transsexual men (n=143) was recruited at the same hospital. Logistic regression showed that the transsexual group had significantly more older brothers and other siblings. These effects were independent of one another and consistent with previous studies of birth order and male sexual orientation. The presence of the fraternal birth order effect in the present sample provides further evidence of the ubiquity of this effect and, therefore, lends support to the maternal immune hypothesis as an explanation of androphilic sexual orientation in some male-to-female transsexuals.

Healthcare Needs of and Access Barriers for Brazilian Transgender and Gender Diverse People

Transgender and gender diverse people (TGD) have specific healthcare needs and struggles with access barriers that should be addressed by public health systems. Our study aimed to address this topic in the Brazilian context. A hospital and web-based cross-sectional survey built with input from the medical and transgender communities was developed to assess TGD healthcare needs of and access barriers in two Brazilian states. Although services that assist this population have existed in Brazil since the 1990s, TGD have difficulty accessing these services due to discrimination, lack of information and a policy design that does not meet the needs of TGD. A history of discrimination was associated with a 6.72-fold increase in the frequency of health service avoidance [95% CI (4.5, 10.1)]. This article discusses the urgent necessity for adequate health policies and for the training of professionals regarding the needs of Brazilian TGD.

Gender incongruence: a comparative study using ICD-10 and DSM-5 diagnostic criteria

Objective: To compare the presence of criteria listed in the DSM-5 and ICD-10 diagnostic manuals in a Brazilian sample of transgender persons seeking health services specifically for physical transition. Methods: This multicenter cross-sectional study included a sample of 103 subjects who sought services for gender identity disorder in two main reference centers in Brazil. The method involved a structured interview encompassing the diagnostic criteria in the two manuals. Results: The results revealed that despite theoretical disagreement about the criteria, the manuals overlap regarding diagnosis confirmation; the DSM-5 was more inclusive (97.1%) than the ICD-10 (93.2%) in this population. Conclusions: Although there is no consensus on diagnostic criteria on transgenderism in the diversity of social and cultural contexts, more comprehensive diagnostic criteria are evolving due to society’s increasing inclusivity.

Transsexual Voice Questionnaire for Male-to-female Brazilian Transsexual People.

OBJECTIVES The aim of the study was to verify the answers to the transsexual voice questionnaire for male-to-female transsexual (TVQMtF) people given to individuals who participated in the Gender Identity Program (PROTIG) at the Hospital de Clínicas de Porto Alegre, Brazil, in relation to some of their demographic characteristics, visual-perceptual evaluations of the face, laryngeal prominence, and auditoryperceptual judgments of voice. METHODS In this cross-sectional study, 47 transsexual women aged between 18 and 50 responded to the (TVQMtF). The demographic data and perceptual ratings were selected from the PROTIG database. RESULTS Among all participants, 55.32% had completed secondary education, and 72.34% had not undergone a sex reassignment surgery; 4.2% of subjects did not use hormones, 23.40% had undergone speech therapy, the average number of years of experience in the female role was 13.98 years, and the participants had been definitively cross-dressing for 5-34 years. Most of the participants had low scores on the (TVQMtF), and significant differences in the total score were observed in accordance with age (higher scores were observed among those <30 years and ≥40 years old) and visual-perceptual evaluations of the face (higher scores were observed in the individual evaluated with masculine face). There were no significant correlations between the total score obtained by the participants and the other demographic variables. CONCLUSIONS Although most of the participants had low scores on the (TVQMtF), some individuals were still experiencing distress due to being perceived as being of the opposite sex or were dissatisfied with their voices.

Reduced serum concentrations of brain-derived neurotrophic factor (BDNF) in transsexual Brazilian men

Serum BDNF levels are significantly decreased in transsexual Brazilian women when compared to cis-sexual men. Since transsexual men are also exposed to chronic social stress and have a high prevalence of associated psychopathologies, it is plausible to inquire if BDNF serum levels are altered in transsexual men as well. Therefore, our objective was to evaluate differences in BDNF serum level of transsexual men when compared to cis-sexual men and women. Our sample comprises 27 transsexual men, 31 cis-sexual women and 30 cis-sexual men recruited between 2011 and 2015. We observed that BDNF serum concentration is decreased in transsexual men comparing to cis-sexual men and women. Cross-sex hormone treatment, chronic social stress or long-term gender dysphoria (GD) could explain the variation found in BDNF serum levels.

Childhood Maltreatment Linked with a Deterioration of Psychosocial Outcomes in Adult Life for Southern Brazilian Transgender Women

A history of childhood maltreatment (HCM) has been associated with detrimental psychiatric outcomes. This is particularly true for transgender, for whom there is initial evidence that HCM may be associated with psychiatric morbidity. Our study aimed to further characterize the relationship between HCM and the development of mental disorder in adult life, based on a sample of Brazilian transgender women. Cross-sectional data were collected from a consecutive sample of 289 transgender women who attended the Hospital Clínicas clinic for gender dysphoria, in Porto Alegre, between 1998 and 2014. Our results demonstrated a greater risk of deteriorating mental health amongst participants who had experienced HCM. Given the disproportionally high rate of HCM in transgender persons, we advocate for greater assistance for transgender persons.