Table 3 Prevalence of non-intended pregnancy according to the characteristics of the study population (n = 8466)

Age

 15 to 25 years old

1141

37.6

35.0–40.2

1839

62.4

59.8–65.0

< 0.001

 26 to 35 years old

1529

51.0

48.2–53.7

1518

49.0

46.3–51.8

 36 to 49 years old

1263

54.5

51.0–57.8

1176

45.5

42.2–49.0

Current marital status

 With partner

3601

48.7

46.8–50.6

3981

51.3

49.4–53.2

< 0.001

 Without partner

332

38.4

33.9–43.1

552

61.6

56.9–66.1

Women’s education level

 Primary or preschool

715

44.0

40.5–47.5

933

56.0

52.5–59.5

< 0.001

 Secondary

1769

43.7

41.4–46.0

2254

56.3

54.0–58.6

 Higher

1449

54.1

50.9–57.2

1346

45.9

42.8–49.1

Education level of the child’s father

 Primary or preschool

537

43.1

38.9–47.4

716

56.9

52.6–61.1

< 0.001

 Secondary

1930

45.0

42.8–47.2

2430

55.0

52.8–57.2

 Higher

1466

52.6

49.4–55.7

1387

47.4

44.3–50.6

Employment condition

 Yes

2468

47.4

45.1–49.6

2845

52.6

50.4–54.9

0.711

 No

1465

48.0

45.4–50.7

1688

52.0

49.3–54.6

Geographical region

 Lima Metropolitan Area

545

50.3

46.4–54.3

600

49.7

45.7–53.6

0.073

 Rest of coastline

1213

47.4

44.4–50.3

1326

52.6

49.7–55.6

 Highlands

1202

46.6

44.0–49.3

1400

53.4

50.7–56.0

 Jungle

973

43.9

40.6–47.2

1207

56.1

52.8–59.4

Residence area

 Urban

2876

49.1

47.0–51.2

3078

50.9

48.8–53.0

< 0.001

 Rural

1057

42.7

39.7–45.6

1455

57.3

54.4–60.3

Wealth index

 First quintile

940

40.6

37.4–44.0

1345

59.4

56.0–62.6

< 0.001

 Second quintile

961

42.0

39.0–45.1

1286

58.0

54.9–61.0

 Third quintile

858

49.8

46.5–53.2

882

50.2

46.8–53.5

 Fourth quintile

639

48.9

44.8–53.0

604

51.1

47.0–55.2

 Fifth quintile

535

58.9

53.4–64.1

416

41.1

35.9–46.6

Ethnicity

 Mestizo

1807

49.9

47.3–52.5

1906

50.1

47.5–52.7

0.026

 Quechua

996

44.2

41.0–47.3

1283

55.8

52.7–59.0

 Negro

422

47.6

43.2–52.0

471

52.4

48.0–56.8

 Others

708

45.6

41.8–49.5

873

54.4

50.5–58.2

Parity

 First children

1228

50.8

48.0–53.6

1280

49.2

46.4–52.0

< 0.001

 Second children

1515

55.3

52.8–57.8

1256

44.7

42.2–47.2

 Third children or more

1190

37.2

34.6–39.8

1997

62.8

60.2–65.4

Contraceptive use

 No

804

47.4

44.2–51.0

917

52.6

49.0–55.8

0.896

 Yes

3129

47.6

45.6–49.6

3616

52.4

50.4–54.4

Number or ANC visits

  > =6 ANC

3657

48.6

46.8–50.3

4074

51.5

49.7–53.2

< 0.001

  < 6 ANC

276

37.8

33.0–42.8

459

62.2

57.2–67.0

Physical violence

 No

3182

50.2

48.2–52.2

3286

49.8

47.8–51.8

< 0.001

 Yes

751

38.5

35.4–41.6

1247

61.5

58.4–64.6

Psychological violence

 No

2325

52.0

49.4–54.6

2218

48.0

45.4–50.6

< 0.001

 Yes

1608

42.4

40.1–44.8

2315

57.6

55.2–59.9

Sexual violence

 No

3825

48.5

46.7–50.3

4265

51.5

49.7–53.3

< 0.001

 Yes

108

27.8

21.9–34.5

268

72.2

65.5–78.1

Intimate partner violence

 No

2171

52.8

50.1–55.4

2009

47.2

44.6–49.9

< 0.001

 Yes

1762

42.4

40.1–44.6

2524

57.7

55.4–59.9