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Table 1 Variables associated with recurrent unintended pregnancy among women serving in the IDF, 2013–2015

From: Recurrent unintended pregnancies among young unmarried women serving in the Israeli military

 

No pregnancy

Recurrent unintended pregnancy

Unadjusted Relative risk

Adjusteda Relative Risk

n = 127, 262

n = 389

(95% CI)

(95% CI)

Body Mass Index

  < 18.5

13.0%

17.1%

1.43 (1.08–1.90)

1.27 (0.90–1.790)

 18.5–24.9

64.8%

59.6%

Reference

Reference

 25–29.9

16.4%

18.4%

1.22 (0.93–1.60)

0.97 (0.69–1.37)

  > 30

5.9%

4.9%

0.90 (0.56–1.45)

0.66 (0.37–1.16)

Education

 Less than high school

2.5%

21.9%

10.96 (8.59–13.98)

6.90 (4.99–9.55)

 High school graduate

96.6%

77.1%

Reference

Reference

 Higher education

0.9%

1.0%

1.36 (0.51–3.66)

N/A

IQ score

 Low (90–99)

33.8%

78.4%

6.30 (4.93–8.07)

3.94 (2.88–5.39)

 Median (100–117.9)

56.4%

20.8%

Reference

Reference

 High (118+)

9.8%

0.8%

0.22 (0.07–0.69)

0.12 (0.02–0.86)

Immigration status

 1st generation

9.0%

17.2%

2.11 (1.62–2.75)

1.50 (0.84–2.67)

 2nd generation

34.5%

44.8%

1.54 (1.23–1.94)

1.18 (0.86–1.62)

 Longer term resident

  

Reference

Reference

Country of origin

 Israel

16.8%

9.7%

Reference

Reference

 Western

20.8%

9.4%

0.79 (0.49–1.25)

0.81 (0.47–1.37)

 Sub-Saharan Africa

3.2%

17.5%

9.36 (6.29–14.08)

2.51 (1.37–4.59)

 Asia

19.4%

13.7%

1.23 (0.80–1.88)

0.84 (0.53–1.35)

 Former Soviet Union

18.3%

21.6%

2.03 (1.37–3.02)

0.91 (0.52–1.59)

 North-Africa

21.2%

28.0%

1.57 (0.76–3.35)

1.28 (0.84–1.94)

 Other

0.3%

0.0%

N/A

N/A

Neighborhood Socioeconomic Status

 Low (1–4)

20.1%

36.3%

1.85 (1.48–2.33)

1.56 (1.18–2.05)

 Median (5–7)

55.4%

54.1%

Reference

Reference

 High (8–10)

24.4%

9.6%

0.40 (0.28–0.58)

0.60 (0.38–0.93)

History of psychiatric illness

1.3%

1.3%

0.97 (0.40–2.35)

1.11 (0.41–3.02)

  1. N/A not available - numbers are too small for calculation
  2. raAdjusted for all variables shown in table