The relationship between personal knowledge and decision self-efficacy in choosing trial of labor after cesarean

The number of women in the United States giving birth via cesarean remains high as the number of vaginal births after cesarean (VBAC) declines. The purpose of this study was to explore how personal knowledge and decision self-efficacy of women who had a prior cesarean birth affected their decision about mode of birth in a subsequent pregnancy.

A sample of 45 pregnant women with a history of a prior cesarean birth between 10 and 22 weeks' gestation were surveyed to assess their knowledge of the risks and benefits of trial of labor after cesarean (TOLAC) and elective repeat cesarean delivery (ERCD), and their degree of decision self-efficacy related to their choice of mode of birth for the present pregnancy.

Decision self-efficacy was not a significant predictor of choice for mode of birth (P = 0.58). Knowledge scores of women who chose ERCD ranged from 0 to 10 (mean [SD], 4.64 [2.94]). Of women who chose TOLAC, knowledge scores ranged from 0 to 13 (mean [SD], 5.90 [3.64]) out of a total possible score of 14. Knowledge was found to be a significant factor in the decision-making process for mode of birth (P = 0.03). Among women who were deemed to have high knowledge, 55% chose TOLAC, whereas 24% of women with high knowledge chose ERCD. The likelihood of a woman with high knowledge scores choosing a TOLAC was 3.9 (95% confidence interval [CI], 1.09-13.81) times the odds of a woman with low knowledge scores choosing ERCD.

In this study, more knowledge about the risks and benefits of TOLAC and ERCD was found to be positively associated with the decision for TOLAC. This finding is important for health care providers when counseling women who have had a prior cesarean about their choices regarding mode of birth during a subsequent pregnancy. Supplying women with complete and accurate information about the risks and benefits of both choices may help increase the number of women who opt for TOLAC.