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Table 2 Profiles of cesarean delivery according to maternal origin using the Robson classification

From: Differential rates of cesarean delivery by maternal geographical origin: a cohort study in France

Robson categorya

Number of CDs / number ofwomen in each category

Size of each category (%)

(number of women in each category divided by the total number of women)

CD rate in each category (%)

(number of cesarean deliveries in the category divided by the number of women in the category)

Contribution of each category (%)

(number of cesarean deliveries in each category divided by the total number of women)

SSA group

Fr group

SSA group

Fr group

Difference (SSA-Fr)

SSA group

Fr group

Difference (SSA-Fr)

SSA group

Fr group

Difference (SSA-Fr)

1

26/193

64/737

12.9

33.5

−20.6

13.5

8.7

4.8

1.7

2.9

−1.2

2A

48/131

79/283

8.8

12.9

−4.1

36.6

27.9

8.7

3.2

3.6

−0.4

2B

7/7

16/16

0.5

0.7

−0.3

100.0

100.0

0.0

0.5

0.7

−0.3

1 + 2A + 2B

81/331

159/1036

22.2

47.1

−24.9

24.5

15.3

9.1

5.4

7.2

−1.8

3

27/486

7/526

32.6

23.9

8.7

5.6

1.3

4.2

1.8

0.3

1.5

4A

26/163

12/156

10.9

7.1

3.8

16

7.7

8.3

1.7

0.5

1.2

4B

17/17

9/9

1.1

0.4

0.7

100.0

100.0

0.0

1.1

0.4

0.7

3 + 4A + 4B

70/666

28/691

44.7

31.4

13.2

10.5

4.1

6.5

4.7

1.3

3.4

5A

99/193

41/125

13.0

5.7

7.3

51.3

32.8

18.5

6.6

1.9

4.8

5B

80/88

21/25

5.9

1.1

4.8

90.9

84.0

6.9

5.4

1.0

4.4

5A + 5B

181/284

63/152

19.0

6.9

12.1

63.7

41.4

22.3

12.1

2.9

9.3

6

7/8

41/61

0.5

2.8

−2.2

87.5

67.2

20.3

0.5

1.9

−1.4

7

29/33

17/34

2.2

1.5

0.7

87.9

50.0

37.9

1.9

0.8

1.2

8

36/60

26/78

4.0

3.5

0.5

60.0

33.3

26.7

2.4

1.2

1.2

9

10/11

2/2

0.7

0.1

0.6

90.9

100.0

−9.1

0.7

0.1

0.6

10

40/98

34/144

6.6

6.6

0.0

40.8

23.6

17.2

2.7

1.5

1.1

Total

458/1491b

370/2198b

   

30.7

16.8

13.9

   
  1. Abbreviations: SSA group women born in and originally from Sub-Saharan Africa, Fr group women born in and originally from mainland France, CD cesarean delivery
  2. aDescription of each category of Robson classification: 1 = Nulliparous, single cephalic, ≥37 weeks, spontaneous labor, 2 = Nulliparous, single cephalic, ≥37 weeks; 2A = induced - 2B = cesarean before labor, 3 = Multiparous (excluding previous uterine scar), single cephalic, ≥37 weeks, spontaneous labor, 4 = Multiparous (excluding previous uterine scar), single cephalic, ≥37 weeks; 4A = induced - 4B = cesarean before labor, 5A = One previous uterine scar, single cephalic, ≥37 weeks - 5B = More than one previous uterine scar, single cephalic, ≥37 weeks, 6 = All nulliparous breeches, 7 = All multiparous breeches (including previous uterine scar), 8 = All multiple pregnancies (including previous uterine scar), 9 = All abnormal lies (including previous uterine scar), 10 = All single cephalic, ≤ 36 weeks (including previous uterine scar)
  3. bMissing data prevented the determination of the Robson category for 9 women of SSA group and 8 women of Fr Group