The study’s findings are not theoretical for some families.
“You know my child is dead,” Kentucky Senator Karen Berg says at the statehouse during the debate over that state’s anti-trans bill in February 2023. Her transgender son had died by suicide two months earlier at age 24. “Your vote yes on this bill means one of two things: either you believe that trans children do not exist, or you believe that trans children do not deserve to exist.”
The anti-trans bill in Kentucky passed, at least 26 other states now have similar laws on the books.
As these laws were being enacted, there was already a lot of research showing a strong association between anti-transgender policies and negative mental health outcomes, explains Ronita Nath. She runs research at The Trevor Project, which offers 24–7 crisis services to LGBTQ+ youth.
Lawmakers and supporters of these laws argued that the evidence of negative mental health effects was weak, she says. “So we clearly knew we needed to very firmly establish causality, and that’s why we really prioritized this research,” she explains.
To do that, they gathered data from transgender and nonbinary young people aged 13–24 from all over the country. “We do social media ads,” Nath says. “Once we reach our sample size in California or New York, we shut those ads down, and we amplify the ads in these harder-to-reach states, let’s say Wyoming or Idaho.”
Then, Nath and her colleagues used a sample of 61,240 young people surveyed from 2018–2022, a period during which 19 states passed a variety of anti-trans laws. They looked to see how the rate of attempted suicides in the previous year changed for residents of those states after the laws were passed.
“We found a very sharp and statistically significant rise in suicide attempt rates after enactment of the laws,” she says. A small rise was seen in a state soon after laws were enacted, followed by a sharper rise two or three years later. Among 13–17-year-olds, two years after a law took effect, the likelihood of a past-year suicide attempt was 72% higher than it was before passage.
Nath notes a randomized control trial would not be possible for this kind of research since you can’t randomly assign someone to live in one state or another. Instead, they analyzed the survey data for each state over time, comparing rates before and after laws were passed. The analysis took months, she says, and controlled for a variety of potentially confounding factors in order to isolate the impact of these laws on past-year suicide attempts.