Table 1 Characteristics of the study population (n = 8466)

Age

 15 to 25 years old

2980

33.0

31.5–34.7

 26 to 35 years old

3047

36.7

35.1–38.5

 36 to 49 years old

2439

30.3

28.4–31.8

Current marital status

 With partner

7582

89.6

88.5–90.5

 Without partner

884

10.4

9.5–11.5

Women’s education level

 Primary or preschool

1648

16.3

15.1–17.6

 Secondary

4023

46.4

44.6–48.2

 Higher

2795

37.3

35.5–39.1

Education level of the child’s father

 Primary or preschool

1253

12.9

11.8–14.0

 Secondary

4360

49.6

47.8–51.4

 Higher

2853

37.6

35.7–39.4

Employment condition

 Yes

5313

63.4

61.7–65.0

 No

3153

36.6

35.0–38.3

Geographical region

 Lima Metropolitan Area

1145

33.2

31.5–35.0

 Rest of coastline

2539

26.0

24.5–27.7

 Highlands

2602

24.1

22.4–25.9

 Jungle

2180

16.6

15.2–18.0

Residence area

 Urban

5954

77.0

75.7–78.3

 Rural

2512

23.0

21.7–24.3

Wealth index

 First quintile

2285

20.2

18.8–21.7

 Second quintile

2247

23.6

22.0–25.2

 Third quintile

1740

20.6

19.3–21.9

 Fourth quintile

1243

17.4

16.0–18.8

 Fifth quintile

951

18.2

16.6–19.9

Ethnicity

 Mestizo

3713

48.9

47.2–50.6

 Quechua

2279

22.7

21.2–24.2

 Negro

893

11.1

10.1–12.2

 Others

1581

17.3

16.0–18.8

Parity

 First children

2508

31.4

30.2–32.6

 Second children

2771

33.7

32.5–35.0

 Third children or more

3187

34.9

33.5–36.3

Contraceptive use

 No

1721

19.4

18.1–20.7

 Yes

6745

80.6

79.3–81.9

Number or Prenatal checkups

  > =6

7731

91.1

90.2–92.0

  < 6

735

8.9

8.0–9.8

Physical violence

 No

6468

77.8

76.5–79.1

 Yes

1998

22.2

20.9–23.5

Psychological violence

 No

4543

54.2

52.4–55.9

 Yes

3923

45.8

44.1–47.6

Sexual violence

 No

8090

95.7

95.0–96.2

 Yes

376

4.3

3.8–5.0

Intimate partner violence

 No

4180

50.4

48.6–52.2

 Yes

4286

49.6

47.8–51.4

Pregnancy intention

 With intention

3933

47.6

45.8–49.3

 Without intention

4533

52.4

50.7–54.2