Table 3 Prevalence and odds ratios of elective caesarean, intrapartum caesarean section and forceps or vacuum extraction by birthweight percentile

Africa

67546

 P₅₀₋P₇₄

15747

1.8

1 · 00

–

5 · 5

1 · 00

–

1 · 9

1 · 00

–

 P₇₅–P₈₉

10150

2.3

1.31 (1.08, 1.59)

0.0067

6 · 5

1 · 23 (1 · 10, 1 · 38)

0 · 0002

1 · 8

1 · 18 (0 · 97, 1 · 44)

0 · 1032

 P₉₀–P₉₄

5247

2.5

1.36 (1.08, 1.72)

0.0093

6 · 0

1 · 25 (1 · 09, 1 · 44)

0 · 0019

1 · 8

1 · 39 (1 · 08, 1 · 78)

0 · 0106

 P₉₅–P₉₆

1820

3.6

1.91 (1.40, 2.60)

<0 · 0001

6 · 8

1 · 46 (1 · 18, 1 · 79)

0 · 0004

1 · 2

1 · 02 (0 · 64, 1 · 62)

0 · 9335

  ≥ P₉₇

6851

3.8

2.00 (1.64, 2.44)

<0 · 0001

9 · 0

2 · 17 (1 · 92, 2 · 44)

<0 · 0001

1 · 7

1 · 86 (1 · 46, 2 · 37)

<0 · 0001

Asia

91595

 P₅₀–P₇₄

18066

12.3

1 · 00

–

12 · 5

1 · 00

–

2 · 6

1 · 00

–

 P₇₅–P₈₉

14694

12.1

1.08 (1.00, 1.18)

0.0611

12 · 8

1 · 11 (1 · 03, 1 · 19)

0 · 0056

2 · 5

1 · 08 (0 · 93, 1 · 25)

0 · 3198

 P₉₀–P₉₄

5955

16.1

1.22 (1.10, 1.36)

0.0002

14 · 9

1 · 37 (1 · 25, 1 · 51)

<0 · 0001

2 · 2

1 · 05 (0 · 86, 1 · 29)

0 · 6286

 P₉₅–P₉₆

3030

14.5

1.31 (1.14, 1.51)

0.0002

13 · 4

1 · 60 (1 · 41, 1 · 82)

<0 · 0001

3 · 2

1 · 67 (1 · 32, 2 · 11)

<0 · 0001

  ≥ P₉₇

9574

18.1

1.65 (1.50, 1.81)

<0 · 0001

17 · 2

1 · 90 (1 · 75, 2 · 06)

<0 · 0001

3 · 0

1 · 55 (1 · 31, 1 · 83)

<0 · 0001

Latin America

87518

 P₅₀–P₇₄

20003

15.8

1 · 00

–

12 · 3

1 · 00

–

1 · 3

1 · 00

–

 P₇₅–P₈₉

12912

17.7

1.11 (1.03, 1.19)

0.0062

12 · 7

1 · 08 (1 · 01, 1 · 17)

0 · 0291

1 · 3

1 · 13 (0 · 91, 1 · 39)

0 · 2628

 P₉₀–P₉₄

5227

19.9

1.27 (1.16, 1.40)

<0 · 0001

13 · 8

1 · 33 (1 · 21, 1 · 47)

<0 · 0001

1 · 7

1 · 55 (1 · 20, 2 · 02)

0 · 0010

 P₉₅–P₉₆

2242

21.7

1.42 (1.24, 1.63)

<0 · 0001

15 · 0

1 · 45 (1 · 26, 1 · 66)

<0 · 0001

1 · 2

1 · 34 (0 · 88, 2 · 06)

0 · 1770

  ≥ P₉₇

6284

25.2

1.65 (1.51, 1.80)

<0 · 0001

15 · 5

1 · 84 (1 · 68, 2 · 02)

<0 · 0001

1 · 2

1 · 34 (1 · 01, 1 · 78)

0 · 0402