Systematic Review: Patient Outcomes in Transdiagnostic Adolescent Partial Hospitalization Programs

Partial hospitalization programs (PHPs) are designed to help stabilize patients with acute mental health problems and are considered more cost-effective than inpatient care for patients who do not require 24-hour monitoring. Many PHPs treat transdiagnostic adolescents to reduce suicidality, self-harm, and other high-risk behaviors; however, the effectiveness of such programs is unknown. We aimed to review the existing evidence for the effects of PHPs on adolescent mental health symptoms and functioning.

We retrieved peer-reviewed evaluations of PHPs treating adolescents with a range of disorders that reported quantitative clinical outcomes. We followed PRISMA guidelines for systematic reviews and included studies published since 2000.

Fifteen studies of 10 PHPs in North America, Europe, Asia, and Australia met inclusion criteria, 5 of which used comparison groups. Most participants were White and female with depressive disorders. All studies found improvements in adolescents' functioning and mental health from admission to discharge; however, only 1 study tested PHP relative to other levels of care, and only 1 study included follow-up data. Dialectical behavior therapy (DBT) may be an effective theoretical orientation for PHP settings, but evidence is limited.

Evidence for effectiveness of PHPs relative to other models is limited. Currently available research suggests that many high-risk transdiagnostic adolescents tend to improve during PHP treatment; however, controlled studies with follow-up data are needed to determine whether partial hospitalization is effective and, if so, how effective, and whether treatment gains persist after discharge.