The information on this website describes the outcome vaginal birth after cesarean (VBAC) in a term pregnancy for a population of individuals who received care at the hospitals within the NICHD MFMU Network between 1999 and 2002. Specifically, using the MFMU Network Cesarean Registry1 data, individuals were included if they were 1) delivered at term (on or after 37 weeks 0 days) with a live single fetus at the time of labor and delivery admission, 2) had a trial of labor after cesarean, and 3) had history of one prior cesarean delivery. For more details, see the article "Prediction of vaginal birth after cesarean in term gestations: A calculator without race and ethnicity" cited below.2
PLEASE NOTE: Information from this website is not intended to be the only basis for making care decisions for an individual, nor is it intended to be a definitive means of assessing the chance of vaginal birth after cesarean in those with a term pregnancy. Users should keep in mind that every patient is an individual, and that factors beyond those described on this website influence vaginal birth after cesarean in a term pregnancy.
- Landon MB, Hauth JC, Leveno KJ, et al. Maternal and perinatal outcomes associated with a trial of labor after prior cesarean delivery. N Engl J Med 2004;351:2581-9. https://www.nejm.org/doi/full/10.1056/nejmoa040405
- Grobman WA, Sandoval G, Rice MM, Bailit JL, Chauhan SP, Costantine MM, Gyamfi-Bannerman C, Metz TD, Parry S, Rouse DJ, Saade GR, Simhan HN, Thorp JM, Tita ATN, Longo M, Landon MB for the Eunice Kennedy Shriver National Institute of Child Health and Human Development Maternal-Fetal Medicine Units (MFMU) Network. Prediction of vaginal birth after cesarean in term gestations: A calculator without race and ethnicity. Am J Obstet Gynecol. 2021.https://www.ajog.org/article/S0002-9378(21)00587-1/pdf
Version 2.0 (updated May 2021)