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Table 1 Unadjusted and fully adjusted Odd ratios (OR) and 95% Confidence Interval (CI) of short birth interval (<=24 months) for all women of reproductive age (15–49 years) based on logistic regression and Bayesian geo-additive model

From: An exploratory spatial analysis of geographical inequalities of birth intervals among young women in the Democratic Republic of Congo (DRC): a cross-sectional study

Variables

n = 7172%

Un-Adjusted

Adjusted

Bayesian

 
  

Odds ratio

95% C.I.

Odds ratio

95% C.I.

Odds ratio

95% C.I.

Province

       

Kinshasa

23.5

RC

 

RC

 

0.85

0.74, 0.95

Bas-Congo

24.2

1.036

0.79, 1.36

0.99

0.75, 1.32

0.85

0.77, 0.94

Bandundu

23.4

0.994

0.77, 1.28

0.97

0.74, 1.27

0.88

0.77, 0.96

Equateur

31.4

1.485

1.17, 1.88

1.39

1.09,1.80

1.06

0.97, 1.17

Orientale

26.7

1.181

0.91, 1.54

1.09

0.82, 1.45

0.94

0.84, 1.06

Nord-Kivu

35.3

1.770

1.39, 2.26

1.62

1.25,2.11

1.12

1.02, 1.24

Maniema

27.6

1.241

0.97, 1.59

1.13

0.87, 1.46

0.94

0.83, 1.05

Sud-Kivu

38.0

1.993

1.57, 2.53

1.83

1.42, 2.37

1.17

1.05, 1.29

Katanga

30.8

1.446

1.14, 1.84

1.37

1.07,1.76

1.02

0.93, 1.11

Kasaï Occident

31.1

1.470

1.16 1.87

1.37

1.06,1.77

1.18

1.06, 1.32

Kasaï Oriental

37.0

1.909

1.52, 2.40

1.78

1.39, 2.27

1.04

0.93, 1.15

Location of residence

       

Urban

28.9

RC

 

RC

   

Rural

31.1

1.109

1.00, 1.23

1.00

0.89, 1.14

1.07

0.97, 1.17

Household economic status

       

low income household

30.5

0.992

0.88, 1.11

  

0.98

0.80, 1.01

middle income household

28.6

0.902

0.78, 1.04

  

0.86

0.77, 0.94

Higher income Household

30.7

RC

     

Education

       

No education

32.1

1.227

1.07, 1.41

1.07

0.91, 1.25

1.08

0.97, 1.19

Primary

30.8

1.157

1.03, 1.30

1.06

093, 1.22

1.06

1.00, 1.16

Secondary and higher

27.8

RC

 

RC

   

Age

       

15-19

47.3

2.584

1.61,4.14

2.513

1.56, 4.04

  

20-24

37.9

1.754

1.25, 2.47

1.790

1.27, 2.52

  

25-29

30.1

1.238

0.88, 1.73

1.309

0.93, 1.84

  

30-34

29.2

1.187

0.85 1.66

1.253

0.89, 1.76

  

35-39

25.9

1.005

0.71, 1.42

1.054

0.74, 1.50

  

40-44

24.7

0.945

0.66, 1.36

.994

0.69, 1.44

  

45-49

25.8

RC

 

RC

   

Use of contraception

       

Not using

31.0

1.125

0.90, 1.41

  

0.97

0.85, 1.08

Traditional & folkloric

27.4

0.945

0.74, 1.21

    

Modern method

28.5

RC

     

Breastfeeding practice

       

Never

30.0

1.021

0.91, 1.14

  

1.07

0.99, 1.15

Exclusive

32.4

1.144

0.99, 1.31

  

1.08

1.00, 1.17

Mixed

29.6

RC

     
  1. RC: Reference Category.
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