A new study published in the Journal of Adolescent Health has revealed that the hormone levels of transgender youth are consistent with the gender they were assigned at birth.

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The term transgender is typically used to describe individuals whose gender self-identification does not match their birth-assigned gender.

“We’ve now put to rest the residual belief that transgender experience is a result of a hormone imbalance,” says study author Dr. Johanna Olson of Children’s Hospital Los Angeles (CHLA). “It’s not.”

The study conducted by Dr. Olson and colleagues is concerned with assessing the safety and effectiveness of treatments to help transgender patients bring their bodies closer in alignment to their gender identity.

Children who have reached puberty can be treated with gonadotrophin-releasing hormone (GnRH) analogs – synthetic hormones that suppress those produced by the body during puberty in order to delay physical changes to the body.

Such treatment is sought following the development of gender dysphoria – a sense of distress and anxiety that can occur when an individual feels dissonance between their gender identity and the sex they were assigned at birth. More and more young people are seeking treatment for this condition every year.

“Although transgender youth are known to be at high risk for depression, anxiety, and suicidality, there are no data available describing the physical and psychosocial characteristics of transgender adolescents seeking sex reassignment in the United States,” the authors of the study write.

To amend this, the researchers have enrolled 101 transgender participants aged 12-24 years old for their prospective study. Of these, 51.5% were assigned “male” at birth and identify as transfeminine and 48.5% were assigned “female” at birth and identify as transmasculine.

After measuring a number of physiological parameters, the researchers discovered that the participants’ hormone levels were in line with the normal ranges of the same assigned sex nontransgender youth population. Transmasculine participants had the same average hormone ranges as cisgender females and transfeminine participants had the same as cisgender males.

The researchers noted that many of the participants were overweight or obese, leading them to hypothesize that transgender individuals might use increased body fat to hide undesirable physical features.

On average, the participants identified a discrepancy with their assigned gender at the age of 8. They did not tell their families until reaching, on average, the age of 17 years.

Alongside this, the researchers found that 35% of the participants reported symptoms of depression and that more than half had thoughts about suicide – significantly higher than the prevalence among general youth.

“Considering that transgender youth in this sample did not disclose their authentic gender to their families until 10 years after discovery on average, it might not be surprising that many are using maladaptive coping mechanisms to manage such a profound undisclosed element of their core selves,” the authors write.

The prevalence of these mental health problems among transgender youth indicates that timely and appropriate intervention could be hugely beneficial to this group.

Having now established the baseline characteristics of the transgender participants, the researchers will continue to assess them over time, tracking the safety and efficacy of any medical interventions they receive as well as their impact on quality of life.

“My goal is to move kids who are having a gender-atypical experience from survive to thrive,” Dr. Olson states. “With this study we hope to identify the best way to accomplish that.”

The researchers will continue to publish follow-up data as they collect it, and they recommend that other medical centers providing care to transgender should consider collecting information and publishing their experiences as well.

A study published earlier this year demonstrated that the gender identity of transgender children is deeply held and consistent rather than the result of confusion as many people have previously maintained.