The model
was relatively insensitive to variation in the probability of
placenta accreta in the setting of placenta previa after 1 CD,
the probability of a cesarean hysterectomy in the setting of
placenta previa with no accreta, the probability of placenta
previa in the pregnancy following a primary cesarean, and
maternal mortality rate in VBAC and VD. Table IV
presents the results of our sensitivity analyses in terms of
the number of additional maternal deaths in each scenario
as compared to base year 2005.