Spike in US teen suicides after Netflix '13 Reasons Why' release: study

According to the new study, researchers estimated there were an additional 195 suicide deaths -- an increase of nearly 29 percent -- among 10 to 17 year-olds in the nine months after its release.

The number of suicide deaths among the same age category "increased significantly" in the month immediately after it hit screens, said the paper, published in the Journal of the American Academy of Child and Adolescent Psychiatry.

The additional deaths mainly affected boys.

The researchers however were not able to establish a causal link between viewing the television series and the increase in suicides and acknowledged other factors may have played a role.

Author of the report Jeffrey Bridge, who led the research team from the Nationwide Children's Hospital in Ohio, told AFP that the Netflix drama portrayed the lead character's suicide in a sensationalized manner.

"It is very concerning that a graphic depiction of the method of Hannah's suicide was shown, which can be traumatic for survivors of suicide loss or suicide attempt and also provides a particular pathway for suicide in some cases," he said.

"The results of this study confirmed concerns about how the series disregarded best practice guidelines for depicting suicide in the media."

Researchers analysed national suicide statistics from January 2013 to December 2017, allowing for seasonal effects and an underlying increasing trend in monthly suicide rates.

The study found no significant change in the level or trend of suicides among 18 to 64 year-olds.

A previous study had already suggested a 19 percent increase in internet searches concerning suicide in the days after "13 Reasons Why" was released.

Netflix, which has renewed the drama for a third season, said it was "looking into the research".

"This is a critically important topic and we have worked hard to ensure that we handle this sensitive issue responsibly," a Netflix spokesperson said.