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. Author manuscript; available in PMC: 2018 Jun 1.
Published in final edited form as: Am J Obstet Gynecol. 2017 Feb 20;216(6):600.e1–600.e9. doi: 10.1016/j.ajog.2017.02.025

Figure 2.

Figure 2

Recurrent preterm births according to 17-OHPC plasma drug concentrations measured at 24 and 32 weeks gestation. Data are shown as median [Q1,Q3] for treated women delivered ≤ 35 weeks (shaded) and > 35 weeks (not shaded) on therapy.