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Table 1 The 10-group classification system

From: Lithuania’s experience in reducing caesarean sections among nulliparas: the impact of the quality improvement course

No.

Group

Group 1

Nulliparous, single cephalic, 37 weeks, in spontaneous labour

Group 2A

Nulliparous, single cephalic, 37 weeks, induced labour

Group 2B

Nulliparous, single cephalic, 37 weeks, CS before labour

Group 3

Multiparous (excluding prev. CS), single cephalic, 37 weeks, in spontaneous labour

Group 4A

Multiparous (excluding prev. CS), single cephalic, 37 weeks, induced labour

Group 4B

Multiparous (excluding prev. CS), single cephalic, 37 weeks, CS before a labour

Group 5A

Previous CS, single cephalic, 37 weeks, induced labour

Group 5B

Previous CS, single cephalic, 37 weeks, CS before labour

Group 5C

Previous CS, single cephalic, 37 weeks, in spontaneous labour

Group 6

All nulliparous breeches

Group 7

All multiparous breeches (including prev. CS)

Group 8

All multiple pregnancies (including prev. CS)

Group 9

All abnormal lies (including prev. CS)

Group 10

All single cephalic, ≤ 36 weeks (including prev. CS)