What is the fine-grained topic of the following text: After seeing an increase in mental health concerns in her own practice, Dr. Anna Abrams, a pediatrician and researcher at the Children’s National Medical Center in Washington D.C., analyzed data from 45 different children's hospitals from 2012-2016 and saw a roughly 55 percent increase in mental health cases. Only return the topic.
Increase in mental health cases in children's hospitals