Insurance-based Disparities in Pediatric Psychiatric Hospitalizations from 2018 to 2021: Examining Mental Health Outcomes among Medicaid and Commercially Insured Youth.

Insurance type is a key indicator of structural vulnerability in pediatric mental health care and may be associated with differences in psychiatric presentation, treatment course, and diagnosis among hospitalized youth, particularly Black and Hispanic/Latino children insured by Medicaid. Despite these inequities, their impact remains understudied among psychiatrically hospitalized pediatric populations. This retrospective study analyzed 1,101 child and adolescent psychiatric patients admitted to an urban psychiatric hospital between June 2018 and November 2021. Clinical presentation, psychiatric history, treatment course, and discharge diagnoses were compared between patients' insurance by Medicaid (72%) and those with commercial insurance (28%). Compared with commercially insured patients, children and adolescents with Medicaid were more likely to be Black or Hispanic/Latino and had higher rates of trauma exposure, prior psychiatric emergency visits, and higher rates of attention-deficit/hyperactivity disorder (ADHD), impulsive/behavioral disorders, and developmental/intellectual disorders. They were more frequently admitted for aggression-related crises, more likely to receive emergency injectable medications for agitation, and had longer hospital stays. Commercially insured patients had higher rates of anxiety disorders and suicide attempt related admissions. These findings suggest children and adolescents with Medicaid who required psychiatric hospitalization had greater severity of psychosocial histories and higher-acuity inpatient courses, highlighting how structural inequities reflected by insurance type, may shape differing psychiatric treatment pathways, underscoring the need for equity-oriented interventions, particularly during periods of healthcare system strains.