A Randomised Controlled Trial of Therapist-Assisted, Internet-Delivered Cognitive Behavior Therapy for Women with Maternal Depression

Postpartum depression impacts up to 15% of Canadian women following childbirth. Remarkably, many women suffering from this disorder do not receive appropriate treatment. The aim of this study was to conduct a parallel-group randomized controlled trial to determine the efficacy of Therapist-Assisted Internet-delivered Cognitive Behavior Therapy (TA-ICBT) for the treatment of postpartum depression. This study was registered with the International Standard Randomized Controlled Trials (ISRCTN: 85456371) and received funding from Canadian Institutes of Health Research (#101526) and the Saskatchewan Health Research Foundation. Fifty women who gave birth to an infant in the past year, who scored above 10 on the Edinburgh Postnatal Depression Scale (EPDS), and who resided in Saskatchewan, Canada were eligible to participate. Participants were randomly assigned to receive either TA-ICBT (n = 25) or waitlist control (n = 25). The efficacy of the treatment was investigated at baseline and at seven- to 10-week follow-up. TA-ICBT participants were also contacted four-weeks following treatment completion. Symptoms of postpartum depression decreased more for participants in the TA-ICBT group (average reduction of 6.24 points on the EPDS; n = 21 included in analyses) compared to those participants in the waitlist control group (average reduction of 2.42 points on the EPDS; n = 20 included in analyses), and these results were clinically significant and maintained at four-week follow-up. TA-ICBT participants demonstrated a reduction in postnatal anxiety, general stress, and parental distress, and an increase in psychological and environmental quality of life when compared to the waitlist control participants. Study implications, limitations, and future research directions are discussed. TRIAL REGISTRATION: Controlled-Trials.com ISRCTN85456371