Pacific Islanders residing in the United States (US) have disproportionally high rates of preterm birth (<37 weeks) and low birthweight infants (<2,500 grams). They are also more likely to experience preeclampsia, primary cesarean birth, excessive gestational weight gain, and gestational diabetes mellitus (GDM) compared to other racial/ethnic minorities. These maternal health factors serve as precursors to maternal and infant morbidity and mortality. Pacific Islanders have almost twice the infant mortality rate, per 1,000 live births, as compared to non-Hispanic whites and have a higher maternal mortality rate compared to the same group (13.5 verse 12.7). Early and consistent supportive care throughout the pregnancy continuum is strongly associated with positive birth outcomes, including infant and maternal morbidity and mortality, and is a US health priority.

Emerging literature suggests that group-based prenatal programs, like Centering Pregnancy, coupled with care navigation, can mitigate precursors to severe morbidity and mortality. The proposed study will determine the feasibility of Centering Pregnancy with care navigation and the preliminary effectiveness to improve: prenatal and postpartum care appointment attendance, preterm birth, low-birth weight infants, cesarean deliveries, emergency department visits, and access to social support services. Investigators will use a mixed-method approach with two groups of Marshallese participants (propensity score matched on relevant covariates such as maternal age, parity, and sociodemographics), one group in Centering Pregnancy with care navigation and one group from standard prenatal care.

Pacific Islanders residing in the United States (US) have disproportionally high rates of preterm birth (<37 weeks) and low birthweight infants (<2,500 grams). They are also more likely to experience preeclampsia, primary cesarean birth, excessive gestational weight gain, and gestational diabetes mellitus (GDM) compared to other racial/ethnic minorities. These maternal health factors serve as precursors to maternal and infant morbidity and mortality. Pacific Islanders have almost twice the infant mortality rate, per 1,000 live births, as compared to non-Hispanic whites and have a higher maternal mortality rate compared to the same group (13.5 verse 12.7). Early and consistent supportive care throughout the pregnancy continuum is strongly associated with positive birth outcomes, including infant and maternal morbidity and mortality, and is a US health priority.

Emerging literature suggests that group-based prenatal programs, like Centering Pregnancy, coupled with care navigation, can mitigate precursors to severe morbidity and mortality. The proposed study will determine the feasibility of Centering Pregnancy with care navigation and the preliminary effectiveness to improve: prenatal and postpartum care appointment attendance, preterm birth, low-birth weight infants, cesarean deliveries, emergency department visits, and access to social support services. Investigators will use a mixed-method approach with two groups of Marshallese participants (propensity score matched on relevant covariates such as maternal age, parity, and sociodemographics), one group in Centering Pregnancy with care navigation and one group from standard prenatal care. The Specific Aims are:

Aim 1: Determine the feasibility of Centering Pregnancy with care navigation to improve prenatal and postpartum care attendance among Marshallese participants. Hypothesis: Marshallese participants who participate in Centering Pregnancy with care navigation will attend 80% of their prenatal and postpartum care visits.

Aim 2: Determine the preliminary effectiveness of Centering Pregnancy with care navigation to improve maternal health outcomes that can mitigate maternal and infant morbidity and mortality. Hypothesis: Marshallese participants who participate in Centering Pregnancy with care navigation will demonstrate improved maternal health outcomes including: preterm birth, low-birth weight infants, cesarean deliveries, and emergency department visits compared to women receiving standard prenatal care using a propensity score matched comparison group.

Aim 3: Determine the preliminary effectiveness of Centering Pregnancy with care navigation to improve access to social support services to Marshallese participants. Hypothesis: Marshallese particiapnts who have completed Centering Pregnancy with care navigation will report improved access to social support services measured by enrollment in health insurance, maintain insurance post-partum, and access to food, transportation, and housing resources.

Inclusion Criteria:

• women who self-report as Marshallese
• 18 years of age or older
• pregnant (12-14 weeks gestation).

Exclusion Criteria:

• conception with the use of fertility treatments
• high-risk pregnancy that requires a transfer to a high-risk clinic
• multiple gestations (i.e. pregnant with more than one infant)
• use of medications known to influence fetal growth (e.g., glucocorticoids, insulin, thyroid, hormones