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Fig. 2 | BMC Pregnancy and Childbirth

Fig. 2

From: Evaluation of a two-tier preterm birth prevention service in a tertiary hospital in the United Kingdom: a retrospective cohort study

Fig. 2

Interventions to reduce preterm birth risk. Interventions to reduce the risk of preterm birth across the three cohorts. The interventions listed (vaginal progesterone, cervical cerclage, and Arabin pessary) are not mutually exclusive. Asterix (*) indicates a significant difference between the Preterm Birth Clinic and Screening Clinic with p < 0.01

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