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Study Identifies Most Common, Costly Reasons for Mental Health Hospitalizations for Children
Nearly 1 in 10 hospitalized children have a primary diagnosis of a mental health condition, and depression alone accounts for $1.33 billion in hospital charges annually, according to a new analysis led by UCSF Benioff Children's Hospital.

The study is the first to examine frequency and costs associated with specific inpatient mental health diagnoses for children, and is a step towards creating meaningful measures of the quality of pediatric hospital care.

"This is the first paper to give a clear picture of the mental health reasons kids are admitted to hospitals nationally," says Naomi Bardach, MD, an assistant professor of pediatrics at UCSF Benioff Children's Hospital and lead author. "Mental health hospitalizations have been increasing in kids, up 24% from 2007 to 2010. Mental health is a priority topic for national quality measures, which are intended to help improve care for all kids."

The study was published in the April issue of the journal Pediatrics.

More than 4 million children and adolescents in the United States have a diagnosable mental health disorder, yet little is known about which specific mental health diagnoses are causing children to be hospitalized. In the study, researchers found that depression, bipolar disorder, and psychosis are the most common and expensive primary diagnoses for pediatric admissions.

"We now know through our analysis of cost and frequency which diagnoses are the most relevant," says Bardach. "Next, we need to define what the optimal care is for children with these conditions so that hospitals can consistently deliver the best care for every child, every time."

Using two national databases — Kids' Inpatient Database and Pediatric Health Information System — the researchers looked at all hospital discharges in 2009 for patients aged 3 to 20 years old to determine the frequency of hospitalizations for primary mental health diagnoses. They compared the mental health hospitalizations between free-standing children's hospitals and hospitals that treat both adults and children, to assess if there was a difference in frequency of diagnoses.

The study found that hospitalizations for children with primary mental health diagnoses were more than three times more frequent at general hospitals than free standing children's hospitals, which the researchers say could indicate that general hospitals have a greater capacity to deliver inpatient psychiatric care than free-standing children's hospitals.

At both kinds of hospitals, the most common mental health diagnoses were similar (depression, bipolar disorder, and psychosis), which the researchers say supports the creation of diagnosis-specific quality measures for all hospitals that admit children.

Depression accounted for 44.1% of all pediatric primary mental health admissions, with charges of $1.33 billion, based on the billing databases used in the study. Bipolar was the second most common diagnosis accounting for 18.1% and $702 million, followed by psychosis at 12.1% and $540 million.

"These are costly hospitalizations, and being hospitalized is a heavy burden for families and patients. Prevention and wellness is a huge part of the Affordable Care Act, along with controlling costs by delivering great care," says Bardach. "This study helps us understand that mental health is a key priority. The long term goal is not only to improve hospital care for these kids, but also to understand how to effectively optimize mental health resources in the outpatient world."