About the Data
Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.
Number of births delivered by cesarean section to low-risk females (full-term, singleton, vertex presentation)
Number of live births to low-risk females (full-term, singleton, vertex presentation)
A low-risk female is defined as one with a full-term (at least 37 weeks since the first day of the last normal menstrual period [LMP]) singleton (not a multiple) pregnancy, with a vertex fetus (head facing in a downward position in the birth canal). A description of the primary measurement used to determine the fetus’s gestational age, the interval between the first day of LMP and the birth, has been published by NCHS.
Additional resources about the objective
- Osterman MJK, Martin JA, Menacker F. Expanded health data from the new birth certificate, 2006. National vital statistics reports; vol 58 no 5. Hyattsville, MD: National Center for Health Statistics. 2009.