Rates of Induction of Labor at 39 Weeks and Cesarean Delivery Following Publication of the ARRIVE Trial

Abstract

This cross-sectional study analyzes the rates of induction and cesarean delivery before and after the publication of A Randomized Trial of Induction vs Expectant Management (ARRIVE).

The ARRIVE Trial

“…Another group of investigators, using natality data from the United States and an interrupted time series approach, evaluated changes in practice related to the ARRIVE trial. 24 Following publication, there was a jump in the 39-week induction rate, which was higher than expected based on trends before publication (15.0% vs. 13.8%; adjusted incident rate ratio: 1.10; 95% CI: 1.08-1.13; P < 0.001). Concomitantly, and consistent with the effect noted in the randomized trial, cesarean delivery was significantly lower than expected (24.7% vs. 25.1%; adjusted incident rate ratio: 0.988; 95% CI: 0.978-0.997).…”