Suicide attempts among Black teenagers in America have risen significantly over the past three decades, according to a new study that found no such spike among white, Asian, Latino or other racial and ethnic groups.

The findings, published in the journal Pediatrics on Monday, used self-reported data from high schoolers collected by the Centers for Disease Control between 1991 and 2017. And the researchers behind the study believe it shines a much-needed light on under-studied differences in suicidal attempts and ideation (basically, thoughts) among American teens based on race and ethnicity.

Its important to look at trends in suicide behavior expression, because it gives us a sense of whether there are particular risk groups and then how we can begin to think about the needs of those different groups, said lead author Michael A. Lindsey, executive director of the McSilver Institute for Poverty Policy and Research at the NYU Silver School of Social Work.