Vaginal Birth After Cesarean Success Rate Calculator

This calculator estimates the success rate of a vaginal birth after cesarean (VBAC) based on various factors such as previous cesarean delivery count, fetal weight, and maternal age.

Input Parameters

Calculation Results

Calculation Formula

Success Rate (%) = (1 - (0.1 * previousCesareans) + (0.00002 * fetalWeight) - (0.5 * (maternalAge > 35 ? 1 : 0))) * 100

Where:
- previousCesareans: Number of previous cesarean deliveries
- fetalWeight: Fetal weight in grams
- maternalAge: Maternal age in years

Success Rate

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This is an estimated success rate for a VBAC based on the provided inputs.

Vaginal Birth After Cesarean Success Rate Calculator Usage Guide

Learn how to use the Vaginal Birth After Cesarean Success Rate Calculator and its working principles

How to Use the Calculator

  1. Enter the number of previous cesarean deliveries (0-5).
  2. Input the fetal weight in grams (500-6000 g).
  3. Provide the maternal age in years (18-45).
  4. Click the "Calculate" button to estimate the VBAC success rate.
  5. Review the calculated success rate and the underlying formula.

Understanding the Formula

The calculator uses the following formula to estimate the VBAC success rate:

Success Rate (%) = (1 - (0.1 * previousCesareans) + (0.00002 * fetalWeight) - (0.5 * (maternalAge > 35 ? 1 : 0))) * 100

This formula considers the impact of multiple previous cesarean deliveries, fetal weight, and maternal age on the likelihood of a successful VBAC.

Important Notes

The results provided by this calculator are estimates and should not replace professional medical advice. Always consult with a healthcare provider for personalized recommendations and to discuss the risks and benefits of VBAC.