The study found that boys were far more likely than girls to kill themselves after the show debuted. Suicide rates for females did increase, but it was not statistically significant. Nor were there any "significant trends" in suicide rates for people 18-64, researchers said.
In a statement, a Netflix spokesperson said they had "just seen this study and are looking into the research. "This is a critically important topic and we have worked hard to ensure that we handle this sensitive issue responsibly," Netflix said, according to The Associated Press.
The spokesperson noted that the study conflicts with research published last week out of the University of Pennsylvania. That study found that young adults, ages 18-29, who watched the entire second season of the show "reported declines in suicide ideation and self-harm relative to those who did not watch the show at all."
However, that study found, viewers who stopped watching the second season before the end "exhibited greater suicide risk and less optimism about the future than those who continued to the end." The results "suggest that a fictional story with a focus on suicidal content can have both harmful and helpful effects," the authors wrote.
When the show debuted, the National Association of School Psychologists issued a warning statement: "We do not recommend that vulnerable youth, especially those who have any degree of suicidal ideation, watch this series. Its powerful storytelling may lead impressionable viewers to romanticize the choices made by the characters and/or develop revenge fantasies," they said. "Suicide is not a solution to problems."
After the criticism, Netflix added a "viewer warning card" before the first episode. Netflix also added language publicizing the website 13reasonswhy.info, which offers resources for people contemplating suicide. Season 3 of the show is expected to be released this year.