Table 3 Robson's 10-group classification of Flemish women giving birth in 2000 or 2008

Columns/groups

Number of CS/Total births

Relative value group in total births (%)

Caesarean sections (%)

Contribution per group (%)

Number of CS/Total births

Relative value group in total births (%)

Caesarean sections (%)

Contribution per group (%)

1.

Nulliparous, single cephalic, ≥ 37 weeks, in spontaneous labor

1036/15316

24.7

6.8

1.7

1635/18571

26.7

8.8

2.4

2.0

0.7

2.

Nulliparous, single cephalic, ≥ 37 weeks, induced or CS before labor

2087/8843

14.2

23.6

3.4

2576/8793

12.6

29.3

3.7

5.7

0.3

3.

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

233/16568

26.7

1.4

0.4

295/18688

26.9

1.6

0.4

0.2

/

4.

Multiparous (excluding prev. CS), single cephalic, ≥ 37 weeks, induced or CS before labor

804/9505

15.3

8.5

1.3

707/8451

12.2

8.4

1.0

-0.1

- 0.3

5.

Previous CS, single cephalic, ≥ 37 weeks

2127/3409

5.5

62.4

3.4

3372/5369

7.7

62.8

4.8

0.4

1.4

6.

All nulliparous breeches

1451/1642

2.6

88.4

2.3

1792/1882

2.7

95.2

2.6

6.8

0.3

7.

All multiparous breeches

765/1125

1.8

68.0

1.2

1049/1241

1.8

84.5

1.5

16.5

0.3

8.

All multiple pregnancies (including prev. CS)

1079/2253

3.6

47.9

1.7

1441/2558

3.7

56.3

2.1

8.4

0.4

9.

All abnormal lies (including prev. CS)

188/200

0.3

94.0

0.3

171/180

0.3

95.0

0.2

1.0

- 0.1

10.

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

770/3264

5.3

23.6

1.2

978/3800

5.5

25.7

1.4

2.1

1.4

TOTALS

10540/62125

17.0

14016/69533

20.2

3.2