QuickStats: Rate of Cesarean Delivery, by Maternal Prepregnancy Body Mass Index Category* — United States, 2020
Weekly / December 3, 2021 / 70(48);1686
Views equals page views plus PDF downloads
Abbreviation: BMI = body mass index.
* BMI = weight (kg)/height (m2). BMI categories are underweight (<18.5), normal weight (18.5–24.9), overweight (25.0–29.9), obesity class I (30.0–34.9), obesity class II (35.0–35.9), and obesity class III (≥40.0).
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
Reported by: Isabelle Horon, DrPH, email@example.com, 301-458-4555.
Suggested citation for this article: QuickStats: Rate of Cesarean Delivery, by Maternal Prepregnancy Body Mass Index Category — United States, 2020. MMWR Morb Mortal Wkly Rep 2021;70:1686. DOI: http://dx.doi.org/10.15585/mmwr.mm7048a7external icon.
MMWR and Morbidity and Mortality Weekly Report are service marks of the U.S. Department of Health and Human Services.
Use of trade names and commercial sources is for identification only and does not imply endorsement by the U.S. Department of Health and Human Services.
References to non-CDC sites on the Internet are provided as a service to MMWR readers and do not constitute or imply endorsement of these organizations or their programs by CDC or the U.S. Department of Health and Human Services. CDC is not responsible for the content of pages found at these sites. URL addresses listed in MMWR were current as of the date of publication.
All HTML versions of MMWR articles are generated from final proofs through an automated process. This conversion might result in character translation or format errors in the HTML version. Users are referred to the electronic PDF version (https://www.cdc.gov/mmwr) and/or the original MMWR paper copy for printable versions of official text, figures, and tables.
Questions or messages regarding errors in formatting should be addressed to firstname.lastname@example.org.