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Cox proportional hazard regression of delivery gestational age by thickness of suture type and cerclage indication
Thick cerclage suture is associated with later gestational age at delivery among women with ultrasound- and exam-indicated cerclages, but not for history-indicated cerclages (effect modification p<0.001). Adjusted for progesterone use during pregnancy, cerclage indication, gestational age at cerclage placement, cerclage type, and attending surgeon years of experience.
