What is the correct denominator for calculating the cesarea sectionrate?

Answer 1

The answer depends on what you are trying to study. Possible options are

• the total number of pregnancies;
  
• the number of hospitalised pregnancies (as opposed to home births);
• the number of planned home births (where things did not go according to plan and a CS was required);
• the number of births (rather than pregnancies).

There are others appropriate to other research.