(CNN) Suicide rates for young girls are rising at a pace faster than that of boys, changing the established patterns that boys are more likely to die by suicide and that girls are more likely to consider it and attempt it, according to a new study.

Researchers at Nationwide Children's Hospital in in Columbus, Ohio analyzed suicide rates of US kids and teens ages 10 to 19 between 1975 and 2016 using the Wide-ranging Online Data for Epidemiologic Research database, run by the US Centers for Disease Control and Prevention.

In that period, there were more than 85,000 suicides in kids and teens, with 80% in boys and 20% in girls. The rates of suicide peaked in 1993 and had been on the decline until 2007, when they again started to climb, according to the findings, published Friday in JAMA

Although boys were 3.8 times more likely than girls to kill themselves over the 40-year study period, the gap is rapidly narrowing. Starting in 2007, the rates of suicide for girls 10 to 14 increased 12.7% per year, compared with 7.1% for boys the same age. A similar trend was seen for teens 15 to 19, with rates of suicide going up 7.9% for girls and 3.5% for boys.

Boys 15 to 19 continued to take their own lives using firearms at far greater rates than girls, but the rates of hanging and suffocation in girls approached those of boys.