Adolescent eating disorder treatment outcomes of an in-person partial hospital program versus a virtual intensive outpatient program.

Objective: Though virtual outpatient psychotherapy for eating disorders is likely effective, less is known about virtual higher levels of care. The current study examined the clinical outcomes of a family-based virtual intensive outpatient program (vIOP) for youth with eating disorders which was developed in response to the COVID-19 pandemic, compared to the same institution's in-person partial hospital program (PHP).

Methods: Treatment outcomes were assessed via chart review in 102 patients between the ages of 9-23 (M = 15.2, SD = 2.5) who were predominantly cisgender female (84.3%) and primarily diagnosed with anorexia nervosa (64.7%) or atypical anorexia (23.5%). Participants were either treated in the in-person PHP before the pandemic (n = 49) or the vIOP during the pandemic (n = 53). Percent expected body weight (%EBW) was examined at baseline, end of treatment, 3-months post-treatment, and 6-months post-treatment, as well as the frequency of medical, psychiatric, and residential admissions before, during, and after vIOP or PHP participation.

Results: Linear mixed models demonstrated no effect of treatment modality (in-person versus virtual) on %EBW over time. The duration of the vIOP was, on average, 12 calendar days longer, though the amount billed for the vIOP was lower. Survival analyses and Cox regression models did not suggest differences in the frequency of hospital and residential treatment admissions during treatment (vIOP: 9.4%, PHP: 10.0%) or post-treatment (vIOP: 15.0%, PHP: 10.2%).

Discussion: Findings support virtual family-based programs as suitable alternatives to in-person treatment and underscore the potential cost-effectiveness of a family-based IOP versus PHP.

Public Significance: This study demonstrates that a virtual, family-based, intensive outpatient program for youth with eating disorders had similar treatment outcomes to an in-person partial hospitalization program. Specifically, the virtual and in-person programs had similar weight restoration outcomes and rates of medical, psychiatric, or residential treatment admissions during or after treatment initiation. Findings support the use of virtual treatment, even for youth requiring a high level of intervention.