Analysis sample

Predicted

Caesarean Delivery

Percentage

Observed

Yes

No

Correct

Step 1

Caesarean Delivery

Yes

158

31

83.6

No

32

148

82.2

Overall Percentage

82.9

Holdout sample

Step 1

Caesarean Delivery

Yes

19

2

90.4

No

1

18

94.7

Overall Percentage

92.5