Main characteristics of 27 classifications for caesarean section and results from the 12 case-scenarios.

Code: 2 = good,  = regular, 0 =  poor, ; -  =  not applicable.
1-Easy: how much effort or time it takes to understand main concepts, logic and rules of the classification.
2-Clarity: clear, objective, precise and unambiguous definitions given for each category.
3- Mutually exclusive: each unit being classified by the system (e.g. woman or CS) can only be placed in a single of the existing categories.
4- Totally inclusive: Each and every unit being classified can be placed in at least one of the categories.
5- Prospective identification of categories: allows classification of the patient into one of the categories before she is taken to the operating theater.
6- Reproducibility: probability that the same case would be classified in the same category by different raters.
7- Implementability: human and material requirements needed to introduce and maintain the classification in continuous use.