Group

Classification

1

Nulliparous, single cephalic, ≥37 weeks in spontaneous labour

2

Nulliparous, single cephalic, ≥37 weeks induced (including prelabour SC)

3

Multiparous, single cephalic, ≥37 weeks, (excluding SC), in spontaneous labour

4

Multiparous, single cephalic, ≥37 weeks, induced labour or SC before labour

5

Multiparous, single cephalic, ≥37 weeks, previous CS

6

All nuliparous breech

7

All multiparous breech (including previous CS)

8

All multiple pregnancies (including previous CS)

9

All transverse or oblique lie (including previous CS)

10

All preterm single cephalic, ≤37 weeks (including previous CS)