Assessing the impact of group antenatal care on gestational length in Rwanda: A cluster-randomized trial

Felix Sayinzoga, Tiffany Lundeen, Sabine F Musange, Elizabeth Butrick, David Nzeyimana, Nathalie Murindahabi, Hana Azman-Firdaus, Nancy L Sloan, Alejandra Benitez, Beth Phillips, Rakesh Ghosh, Dilys Walker, Felix Sayinzoga, Tiffany Lundeen, Sabine F Musange, Elizabeth Butrick, David Nzeyimana, Nathalie Murindahabi, Hana Azman-Firdaus, Nancy L Sloan, Alejandra Benitez, Beth Phillips, Rakesh Ghosh, Dilys Walker

Abstract

Background: Research on group antenatal care in low- and middle-income contexts suggests high acceptability and preliminary implementation success.

Methods: We studied the effect of group antenatal care on gestational age at birth among women in Rwanda, hypothesizing that participation would increase mean gestational length. For this unblinded cluster randomized trial, 36 health centers were pair-matched and randomized; half continued individual antenatal care (control), half implemented group antenatal care (intervention). Women who initiated antenatal care between May 2017 and December 2018 were invited to participate, and included in analyses if they presented before 24 weeks gestation, attended at least two visits, and their birth outcome was obtained. We used a generalized estimating equations model for analysis.

Findings: In total, 4091 women in 18 control clusters and 4752 women in 18 intervention clusters were included in the analysis. On average, women attended three total antenatal care visits. Gestational length was equivalent in the intervention and control groups (39.3 weeks (SD 1.6) and 39.3 weeks (SD 1.5)). There were no significant differences between groups in secondary outcomes except that more women in control sites attended postnatal care visits (40.1% versus 29.7%, p = 0.003) and more women in intervention sites attended at least three total antenatal care visits (80.7% versus 71.7%, p = 0.003). No harms were observed.

Interpretation: Group antenatal care did not result in a difference in gestational length between groups. This may be due to the low intervention dose. We suggest studies of both the effectiveness and costs of higher doses of group antenatal care among women at higher risk of preterm birth. We observed threats to group care due to facility staff shortages; we recommend studies in which antenatal care providers are exclusively allocated to group antenatal care during visits.

Trial registration: ClinicalTrials.gov NCT03154177.

Conflict of interest statement

The authors have declared that no competing interests exist.

Figures

Fig 1. Consolidated Standards of Reporting Trials…
Fig 1. Consolidated Standards of Reporting Trials (CONSORT) diagram for the Preterm Birth Initiative-Rwanda trial of group antenatal care.

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Source: PubMed

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