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Table 1 Crude and adjusted model of determinants of short birth interval defined as birth-to-birth interval <33 months

From: Determinants and consequences of short birth interval in rural Bangladesh: a cross-sectional study

 

Recommended birth interval (at least 33 months)

Short birth interval < 33 months

Crude OR

95% CI

OR

95% CI

Age at onset of birth interval

22.0 year$

22.8 year$

1.04

1.03

1.06

1.11

1.08

1.15

Parity at onset of birth interval

          

1

2,811

50.5%

708

51.8%

reference

  

reference

  

2

1,470

26.4%

329

24.0%

0.86

0.74

0.99

0.53

0.44

0.63

3

708

12.7%

168

12.3%

0.92

0.76

1.12

0.38

0.29

0.51

4+

582

10.4%

163

11.9%

1.16

0.95

1.41

0.28

0.19

0.41

Age at first pregnancy

18.3 year$

18.6 year$

1.04

1.02

1.07

0.95

0.92

0.98

Adverse outcome of any previous pregnancy

          

Yes

2,021

36.3%

651

47.6%

2.28

1.95

2.67

2.10

1.83

2.40

No

3,550

63.7%

717

52.4%

reference

  

reference

  

Religion

          

Muslim (%)

4,605

82.6%

1,152

84.2%

reference

  

reference

  

Other (%)

966

17.3%

216

15.8%

0.86

0.73

1.02

0.68

0.53

0.87

Education

          

None or primary education only

3,408

61.2%

810

59.2%

reference

  

reference

  

Secondary or above

2,163

38.8%

558

40.8%

1.11

0.98

1.26

1.26

1.09

1.45

Household assets

          

0-3

4,043

72.7%

1040

76.0%

1.22

1.06

1.41

1.42

1.22

1.65

4+

1,520

27.3%

328

24.0%

reference

  

reference

  

Tea garden resident

          

Yes

663

11.9%

169

12.4%

1.06

0.88

1.28

1.41

1.07

1.87

No

4809

88.1%

1.199

87.6%

reference

  

reference

  
  1. Adjustment for all other variables. $Average.