QuickStats: Rate of Cesarean Delivery, by Maternal Prepregnancy Body Mass Index Category — United States, 2020

Posted on by NCHS

In 2020, 31.8% of live births were to women who had a cesarean delivery.

The rate of cesarean delivery was lowest for women who were underweight before pregnancy (20.7%); the rate rose steadily as BMI increased to obesity class III (52.3%).

One quarter (25.1%) of women of normal weight had a cesarean delivery.

Sources: National Vital Statistics System, natality file. https://wonder.cdc.gov/natality-expanded-current.html; Defining adult overweight and obesity. https://www.cdc.gov/obesity/adult/defining.html#:~:text=Class%203%3A%20BMI%20of%2040%20or%20higher.%20Class,body%20fatness%20or%20the%20health%20of%20an%20individual


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Page last reviewed: December 3, 2021
Page last updated: December 3, 2021