Mode of delivery and postpartum depression: the role of patient preferences

OBJECTIVE: The purpose of this study was to explore the relationship between strength of preference for vaginal delivery, delivery mode undergone, and postpartum depression. STUDY DESIGN: We conducted a secondary analysis of data from a longitudinal study of delivery-mode preferences. During an interview between 24-36 weeks of gestation, participants were asked whether they preferred vaginal or cesarean delivery; the strength of this preference was measured by the standard gamble metric. Depression was assessed antepartum and at 8-10 weeks and 6-8 months after delivery by using the Patient Health Questionnaire (PHQ-9). The primary outcome was PHQ-9 score at 8-10 weeks after delivery. We used multivariable regression analysis to assess the effect of strength of preference for vaginal delivery and delivery mode undergone on postpartum depression. RESULTS: Of 160 participants, 33.1% were nulliparous, and 30.6% had a previous cesarean delivery. Most of the participants (92.4%) preferred vaginal delivery, but the strength of preference varied substantially. The mean strength-of-preference score (0-1 scale; higher scores denote stronger vaginal delivery preference) was 0.658 (SD, +/- 0.352). A significant interaction emerged between the effects of delivery mode and vaginal delivery preference score on postpartum PHQ-9 score (P = .047). Specifically, a stronger preference for vaginal delivery was associated with higher PHQ-9 scores among women who underwent cesarean delivery (P = .027) but not among women who underwent vaginal delivery (P = .761). The interaction between delivery mode and vaginal delivery preference score was no longer significant at 6-8 months after delivery. CONCLUSION: Women who have a strong antepartum preference for vaginal delivery and deliver by cesarean may be at increased risk for depression in the early postpartum period.