Associations between maternal birth complications and postpartum depressive symptoms: A systematic narrative review and meta-analysis.

Background: Nearly half of people report birth-related complications, which is thought to be a risk factor for postpartum depression (PPD).

Objectives: The goal of this systematic narrative review and meta-analysis was to provide an updated examination of the literature linking specific maternal birth complications and PPD.

Design: A systematic review was conducted focused on studies examining associations between specific maternal birth complications and PPD symptoms/and or diagnoses, along with meta-analyses to quantify the magnitude of associations for specific experiences. The review protocol was not pre-registered.

Methods: Searches were completed using PsycINFO and PubMed databases. We used four eligibility criteria: (a) article available in English, (b) study included a measure of dimensional or diagnostic depression, (c) include discrete experience of birth-related complication, and (d) included a statistical test of the bivariate association between depression in the postpartum period and a measure of birth-related complication. We excluded studies of newborn intensive care or infant health conditions, rather than maternal birth complications directly impacting the pregnant person's health. All analyses were conducted using Comprehensive Meta-Analysis Software. We considered patterns in sampling, measurement, and analytic designs. To address publication bias, we examined funnel plots and calculated Egger's test.

Results: The review (61 studies; 1,853,282 total participants) revealed four categories of maternal birth complications (i.e., cesarean, preterm birth, pain, laceration). Both the narrative review and meta-analysis support positive associations between maternal birth complications overall and PPD symptoms and diagnoses (odds ratio, OR = 1.47, p < 0.001), with specific associations observed for cesarean deliveries (non-emergency: 1,792,725 participants; OR = 1.30, p < 0.001; emergency: 14,199 participants; OR = 1.48, p = 0.001), preterm birth (39,291 participants; OR = 1.97, p < 0.001), and pain (3,708 participants; OR = 1.75, p = 0.009). ORs were small-to-medium in magnitude. Laceration alone was not significantly associated with PPD (3,356 participants; OR = 1.18, p = 0.692).

Conclusions: This study expands upon previous research and provides nuanced perspective on the relationship between different types of maternal birth complications and PPD. This review was supported by a Ford Foundation Predoctoral Fellowship and 1F31MH135650-01.