Cognitive Behavioral Therapy for Individuals With Low Literacy and Perinatal Depression: A Randomized Clinical Trial

Area of Science:

• Global Mental Health
• Psychiatry
• Public Health

Background:

• Perinatal depression is a significant issue in sub-Saharan Africa, with substantial treatment gaps.
• Cognitive Behavioral Therapy (CBT) is effective but typically requires written materials, posing a challenge in low-literacy settings.

Purpose of the Study:

• To assess the efficacy of a culturally adapted CBT intervention delivered by lay counselors for women with perinatal depression in rural Sierra Leone.
• To address the need for accessible mental health interventions in areas with limited resources and infrastructure.

Main Methods:

• An individually randomized, blinded clinical trial comparing adapted CBT to enhanced usual care.
• The study involved 155 undernourished pregnant and postpartum women with depression in Sierra Leone.
• Intervention consisted of 6 weekly CBT sessions delivered without written materials.

Main Results:

• The CBT group showed significantly lower depressive symptoms (aPHQ-9 scores) at 8 weeks compared to the control group (median difference of -4).
• Higher rates of clinically meaningful symptom reduction (96.0% vs 55.4%) and remission (78.6% vs 33.8%) were observed in the CBT group.
• These positive effects were sustained up to 9 months postpartum.

Conclusions:

• Culturally adapted CBT delivered by lay counselors effectively reduces perinatal depression symptoms in low-literacy, low-resource settings.
• This intervention model shows promise for scalable mental health treatment where professional services are scarce.