n

%

Mothers age (years)

15 - 20

21 - 30

≥31

457

981

394

24.9

53.5

21.5

Formal school education of mothers

Yes

No

164

1668

9.0

91.0

Living children number by mother

1

2 - 3

4 - 5

≥6

448

752

530

102

24.5

41.0

28.9

5.6

Number of pregnancies by mother

1

2 - 5

≥6

346

1235

251

18.9

67.4

13.7