Cost-effectiveness of Cognitive Behavioral Therapy for Depressed Youth Declining Antidepressants.

Abstract

Adolescents with depression identified in primary care settings often have limited treatment options beyond antidepressant (AD) therapy. We assessed the cost-effectiveness of a brief cognitive behavioral therapy (CBT) program among depressed adolescents who declined or quickly stopped using ADs. A total of 212 youth with depression were randomly assigned to treatment as usual (TAU) or TAU plus brief individual CBT. Clinical outcomes included depression-free days (DFDs) and estimated quality-adjusted life-years (QALYs). Costs were adjusted to 2008 US dollars. Incremental cost-effectiveness ratios (ICERs) comparing CBT to TAU were calculated over 12- and 24-month follow-up periods. Youth randomly assigned to CBT had 26.8 more DFDs (<i>P</i> = .044) and 0.067 more QALYs (<i>P</i> = .044) on average compared with TAU over 12 months. Total costs were $4976 less (<i>P</i> = .025) by the end of the 24-month follow-up among youth randomly assigned to CBT. Total costs per DFD were -$51 (ICER = -$51; 95% confidence interval [CI]: -$394 to $9) at 12 months and -$115 (ICER = -$115; 95% CI: -$1090 to -$6) at 24 months. Total costs per QALY were -$20 282 (ICER = -$20 282; 95% CI: -$156 741 to $3617) at 12 months and -$45 792 (ICER = -$45 792; 95% CI: -$440 991 to -$2731) at 24 months. Brief primary care CBT among youth declining AD therapy is cost-effective by widely accepted standards in depression treatment. CBT becomes dominant over TAU over time, as revealed by a statistically significant cost offset at the end of the 2-year follow-up.