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Table 2 Cesarean delivery profiles of women with normal BMI using Robson classification

From: Use of the Robson classification to understand the increased risk of cesarean section in case of maternal obesity

Group*

N CS in group

Total N in group

Group Size (%) 1

Group CS rate (%) 2

Absolute group contribution to overall CS rate (%) 3

Relative group contribution to overall CS rate (%) 4

1

281

3226

27.3

8.7

2.4

16.9

2

288

1130

9.6

25.5

2.4

17.3

2a (Induced)

234

1076

9.1

21.7

2.0

14.0

2b (Prelabor CS)

54

54

0.5

100.0

0.5

3.2

3

68

3943

33.4

1.7

0.6

4.1

4

51

735

6.2

6.9

0.4

3.1

4a (Induced)

31

715

6.1

4.3

0.3

1.9

4b (Prelabor CS)

20

20

0.2

100.0

0.2

1.2

5

360

1074

9.1

33.5

3.1

21.6

5.a (1 CS)

204

912

7.7

22.4

1.7

12.2

5.b (> 1 CS)

156

162

1.4

96.3

1.3

9.4

6

150

272

2.3

55.1

1.3

9.0

7

134

266

2.3

50.4

1.1

8.0

8

160

478

4.1

33.5

1.4

9.6

9

20

20

0.2

100.0

0.2

1.2

10

155

653

5.5

23.7

1.3

9.3

Total

1667

11,797

100.0

14.1

14.1

100.0

  1. *Group 1: primiparous, single cephalic presentation, spontaneous labor, ≥ 37 weeks
  2. *Group 2: primiparous, single cephalic presentation, ≥ 37 weeks
  3. *Group 2a: primiparous, single cephalic presentation, ≥ 37 weeks, induction
  4. *Group 2b: primiparous, single cephalic presentation, ≥ 37 weeks, CS before labor
  5. *Group 3: multiparous, single cephalic presentation, spontaneous labor, ≥ 37 weeks
  6. *Group 4: multiparous, single cephalic presentation, ≥ 37 weeks
  7. *Group 4a: multiparous, single cephalic presentation, ≥ 37 weeks, induction
  8. *Group 4b: multiparous, single cephalic presentation, ≥ 37 weeks, CS before labor
  9. *Group 5: multiparous, single cephalic presentation, history of one or more CS, ≥ 37 weeks
  10. *Group 5a: multiparous, single cephalic presentation, history of one or more CS, ≥ 37 weeks, history of one CS
  11. *Group 5b: multiparous, single cephalic presentation, history of one or more CS, ≥ 37 weeks, history of more than one CS
  12. *Group 6: primiparous, single breech presentation
  13. *Group 7: multiparous, single breech presentation, including a history of CS
  14. *Group 8: twin pregnancies, including a history of one or more CS
  15. *Group 9: single transverse or oblique lie, including a history of one or more CS
  16. *Group 10: single cephalic presentation, < 37 weeks, including a history of one or more CS
  17. 1. % = n of women in the group / total N women delivered in the setting × 100
  18. 2. % = n of CS in the group / total N of women in the group × 100
  19. 3. % = n of CS in the group / total N of women delivered in the setting × 100
  20. 4. % = n of CS in the group / total N of CS in the setting × 100
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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