Table 2 Comparison of ordinal factors between non-medically indicated caesarean section and spontaneous vaginal birth

Total population

11,112

100

176,908

100

Age category

 15–19

89

0.8

1,355

0.8

 20–24

654

5.9

14,849

8.4

 25–29

2,236

20.1

47,374

26.8

 30–34

3,754

33.8

69,238

39.1

 35–39

3,176

28.6

37,453

21.2

 40–44

1,060

9.6

6,422

3.6

 45–49

128

1.2

199

0.1

Living region

 Eastern Switzerland

1,115

10.0

22,296

12.6

 Central Switzerland

1,009

9.1

16,519

9.3

 North-Western Switzerland

1,805

16.2

21,544

12.2

 Ticino

324

2.9

6,626

3.7

 Zurich

2,871

25.8

29,409

16.6

 Western Switzerland

1,616

14.5

38,837

22.0

 Espace Mittelland

2,058

18.5

38,014

21.5

 Other Countries

314

2.8

3,663

2.1

Insurance class

 Mandatory

8,431

75.9

151,295

85.5

 Semi-private

1,702

15.3

18,429

10.4

 Private

979

8.8

7,184

4.1

Urbanity score

 Urban

6,896

67.9

102,431

63.6

 Suburban

1,733

17.1

27,706

17.2

 Rural

1,529

15.1

30,963

19.2