Introduction: People of color and low-income and uninsured populations in the United States have elevated risks of adverse maternal health outcomes alongside low levels of postpartum visit attendance. The postpartum period is a critical window for delivering health care services to reduce health inequities and their transgenerational effects. Evidence is needed to identify predictors of postpartum visit attendance in marginalized populations. Methods: We conducted a systematic review of the peer-reviewed literature to identify studies that quantified patient-, provider-, and health system-level predictors of postpartum health care use by people of color and low-income and uninsured populations. We extracted study design, sample, measures, and outcome data from studies meeting our eligibility criteria, and used a modified Cochrane Risk of Bias tool to evaluate risk of bias. Results: Out of 2,757 studies, 36 met our criteria for inclusion in this review. Patient-level factors consistently associated with postpartum care included higher socioeconomic status, rural residence, fewer children, older age, medical complications, and previous health care use. Perceived discrimination during intrapartum care and trouble understanding the health care provider were associated with lower postpartum visit use, while satisfaction with the provider and having a provider familiar with one's health history were associated with higher use. Health system predictors included public facilities, group prenatal care, and services such as patient navigators and appointment reminders. Discussion: Postpartum health service research in marginalized populations has predominantly focused on patient-level factors; however, the multilevel predictors identified in this review reflect underlying inequities and should be used to inform the design of structural changes.

The Ten Steps to Successful Breastfeeding outline maternity practices that protect, promote, and support breastfeeding and serve as the foundation for the Baby-Friendly Hospital Initiative. This systematic review describes interventions related to Step 3 of the Ten Steps, which involves informing pregnant women about the benefits and management of breastfeeding. Our main objective was to determine whether prenatal clinic- or hospital-based breastfeeding education increases breastfeeding initiation, duration, or exclusivity. The electronic databases MEDLINE and CINAHL were searched for peer-reviewed manuscripts published in English between January 1, 2000, and May 5, 2016. Bibliographies of relevant systematic reviews were also screened to identify potential studies. Thirty-eight studies were included. The research studies were either randomized controlled trials or quasi-experimental studies conducted in developed or developing countries. Findings suggest that prenatal interventions, delivered alone or in combination with intrapartum and/or postpartum components, are effective at increasing breastfeeding initiation, duration, or exclusivity where they combine both education and interpersonal support and where women’s partners or family are involved. However, varying study quality and lack of standardized assessment of participants’ breastfeeding intentions limited the ability to recommend any single intervention as most effective. Future studies should test the strength of maternal breastfeeding intentions, assess the role of family members in influencing breastfeeding outcomes, compare the effectiveness of different health care providers, and include more explicit detail about the time and full cost of different interventions.

CONTEXT: Breastfeeding duration and exclusivity among Latinas fall below recommended levels, indicating a need for targeted interventions. The effectiveness of clinical breastfeeding interventions for Latinas remains unclear. OBJECTIVE: To systematically review the documented effectiveness of clinical breastfeeding interventions on any and exclusive breastfeeding among Latinas. DATA SOURCES: English-language publications in Medline, CINAHL, and Embase were searched through May 28, 2015. STUDY SELECTION: Fourteen prospective, controlled studies describing 17 interventions met inclusion criteria. DATA EXTRACTION: Extracted study characteristics include study design, population characteristics, intervention components, timing and intensity of delivery, provider type, control procedures, and outcome measures. RESULTS: Random-effects meta-analyses estimated risk differences (RDs) between breastfeeding mothers in intervention and control arms of each study and 95% prediction intervals (PIs) within which 95% of intervals cover the true value estimated by a future study. Interventions increased any breastfeeding at 1 to 3 and 4 to 6 months (RD 0.04 [95% PI −0.15 to 0.23] and 0.08 [−0.08 to 0.25], respectively) and exclusive breastfeeding at 1 to 3 and 4 to 6 months (0.04 [−0.09 to 0.18] and 0.01 [−0.01 to 0.02]). Funnel plot asymmetry suggested publication bias for initiation and 1- to 3-month any breastfeeding. Estimates were slightly larger among interventions with prenatal and postpartum components, 3 to 6 patient contacts, and delivery by an International Board Certified Lactation Consultant or lay provider. LIMITATIONS: The published evidence for Latinas is limited, and studies have varying methodologic rigor. CONCLUSIONS: Breastfeeding interventions targeting Latinas increased any and exclusive breastfeeding compared with usual care.