VBAC Success Rate Calculator

Formula

The formula to calculate the VBAC Success Rate is:

\[ SR = \left( \frac{V}{T} \right) \times 100 \]

Where:

\(SR\) is the VBAC Success Rate (%)
\(V\) is the number of successful VBAC deliveries
\(T\) is the total number of attempted VBAC deliveries

What is a VBAC Success Rate?

VBAC stands for Vaginal Birth After Cesarean. The VBAC success rate refers to the percentage of women who, after having one or more cesarean deliveries, successfully give birth vaginally in subsequent pregnancies. This rate can vary depending on several factors, including the reason for the initial cesarean, the type of uterine incision used in the cesarean, and the mother’s overall health and pregnancy conditions. According to the American Pregnancy Association, 60-80% of women who attempt a VBAC have a successful vaginal delivery.

Example Calculation

Let's assume the following values:

Number of Successful VBAC Deliveries (V) = 30
Total Number of Attempted VBAC Deliveries (T) = 50

Using the formula:

\[ SR = \left( \frac{30}{50} \right) \times 100 = 60\% \]

The VBAC Success Rate (SR) is 60%.