Association between Maternal Obesity Class, Adherence to Labor Guidelines, and Perinatal Outcomes.

 Data are limited concerning rates of perinatal complications in women with a body mass index (BMI) ≥40 kg/m2 compared to women with other BMI classes when guidelines for the safe prevention of the primary cesarean delivery are applied.  The aim of the study is to evaluate labor guideline adherence by BMI class and to compare perinatal outcomes across BMI classes with guideline adherent management.  This retrospective study included low-risk women admitted for delivery between April 2014 and April 2017 after the labor guidelines were implemented.