In the United States, youth have the highest burden of nonfatal self-inflicted injury (ie, deliberate physical harm against oneself, inclusive of suicidal and nonsuicidal intent) requiring medical attention.1 One study found that emergency department (ED) visits for these injuries during the 1993 to 2008 period varied by age group, ranging from 1.1 to 9.6 per 1000 ED visits, with adolescents aged 15 to 19 years exhibiting the highest rates.1 Self-inflicted injury is one of the strongest risk factors for suicide—the second-leading cause of death among those aged 10 to 24 years during 2015.2 This study examined trends in nonfatal self-inflicted injuries treated in hospital EDs among US children, adolescents, and young adults aged 10 to 24 years (hereafter referred to as youth). The annual percentage change described the rate of change for each linear segment. ER visits for self-injury among young women aged 20 to 24 also increased but at a slower pace, rising from 228 per 100,000 in 2001 to 346 per 100,000 in 2015. Discussion 
 
 Youth self-inflicted injury ED visit rates were relatively stable before 2008. However, rates among females significantly increased thereafter—particularly among females aged 10 to 14 years, who experienced an 18.8% annual increase from 2009 to 2015. ___ 
 
 This story has been updated to correct that only intentional injuries were included in the study. Researchers said the findings underscore the need to beef up prevention efforts including finding ways to help at-risk kids feel less isolated and more connected to their peers, and teaching coping and problem-solving skills. Funding/Support: This secondary data analysis study was conducted as part of the regular roles and responsibilities of all coauthors at the Centers for Disease Control and Prevention (CDC).
– Attempted suicides, drug overdoses, cutting, and other types of self-injury have increased substantially in US girls, a 15-year study of ER visits found. It's unclear why, but some mental health experts think cyberbullying, substance abuse, and economic stress from the recent recession might be contributing, the AP reports. The sharpest increase occurred among girls aged 10 to 14, nearly tripling from 2009 to 2015, from about 110 visits per 100,000 to almost 318. Older teen girls had the highest rates—633 visits per 100,000 in 2015, but the increase after 2008 was less steep. The rising rates "should be of concern to parents, teachers, and pediatricians," says Dr. Mark Olfson, a psychiatry professor not involved in the CDC study published in JAMA. "One important reason to focus on reducing self-harm is that it is [a] key risk factor for suicide." Researchers analyzed 2001-2015 data on nonfatal self-inflicted injuries treated in ERs among ages 10 to 24. Nearly 29,000 girls with self-inflicted injuries and about 14,000 boys were treated in ERs during the study years. Rates among boys didn't change much; rates in girls were stable until around 2008. The results underestimate the problem, though, since they don't include self-injuries treated in doctors' offices or elsewhere, says lead author Melissa Mercado. Drug overdoses and other self-poisonings were the most common method for all, followed by intentional cutting with sharp objects. All injuries were intentional, but not all were suicide attempts, says Mercado.