Table 2 Background characteristics of the women (%)

< 20

0.6

4.2

20-24

12.8

41.6

25-29

46.9

34.5

30-34

30.0

12.9

35+

9.7

6.8

Mean age of nullipara (95% CI)

26.7(26.4-27.0)

23.5(23.2-23.8)

Education

Secondary or less

5.9

56.7

High school

31.8

26.6

Higher than high school

62.3

16.7

Occupation

Farmers

2.5

64.4

Office staff

57.4

10.2

Workers

6.5

10.1

Business/services

20.3

10.5

Others

13.4

4.8

Head of household

Yes

10.4

4.6

No

89.6

95.4

Marital status

Married

99.1

98.1

Unmarried

0.9

1.9

Parity

1

56.5

46.6

2

39.1

35.4

3+

4.4

18.1

High risk of pregnancy

Yes

11.3

13.4

No

88.7

86.7