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Table 2 Adjusted Odds Ratio (with 95% Confidence Interval) of Unwanted Pregnancy Using Multiple Unconditional Logistic Regression and Conditional Logistic Regression Analysis under Case Control Approach

From: Determinants of unwanted pregnancies in India using matched case-control designs

Explanatory Variables

Case Control Approach in the Ratio of 1:3

Pair Wise Matching Case Control Approach

EXP (B)

95% C.I. EXP (B)

EXP (B)

95% C.I. EXP (B)

Lower

Upper

Lower

Upper

Region

      

Central®

      

North

0.50

0.44

0.56

   

East

0.78

0.70

0.88

   

Northeast

0.62

0.55

0.71

   

West

0.35

0.30

0.41

   

South

0.62

0.54

0.71

   

Place of residence

      

Rural®

      

Urban

1.12

1.02

1.24

   

Religion

      

Hindu®

      

Muslim

1.37

1.24

1.52

1.27

1.02

1.60

Others

1.27

1.10

1.46

1.11

0.83

1.50

Caste

      

Others®

      

Scheduled Caste

1.06

0.95

1.17

0.96

0.82

1.13

Scheduled Tribe

0.87

0.76

0.98

1.02

0.78

1.34

Women's Education

      

Illiterate®

      

Literate but below Primary

1.16

1.00

1.33

1.10

0.90

1.36

Primary but below Middle

1.05

0.93

1.19

1.01

0.85

1.20

Middle but below High School

0.92

0.80

1.06

0.91

0.74

1.12

High School and above

0.62

0.53

0.72

0.80

0.64

1.00

Partner’s education

      

Illiterate®

      

Literate but below Primary

0.98

0.85

1.13

1.14

0.93

1.41

Primary but below Middle

0.95

0.85

1.07

0.98

0.82

1.16

Middle but below High School

0.86

0.76

0.97

0.76

0.64

0.91

High School and above

0.85

0.75

0.97

0.81

0.68

0.97

Wealth index

      

Poorest®

      

Poorer

1.01

0.89

1.13

0.85

0.72

1.01

Middle

1.07

0.95

1.22

0.83

0.68

1.01

Richer

0.91

0.79

1.05

0.69

0.55

0.87

Richest

0.71

0.59

0.85

0.56

0.42

0.74

Sex of last children

      

Male®

      

Female

1.33

1.22

1.45

1.46

1.29

1.64

Ever Used Contraceptive

      

Never Used®

      

Used

1.55

1.43

1.69

1.85

1.64

2.09

Sex Composition of Living Children

      

No. of Sons Equal to Daughters®

      

No. of Sons Greater than Daughters

0.77

0.70

0.85

1.70

1.47

1.96

No. of Sons Less than Daughters

0.61

0.55

0.68

1.21

1.05

1.40

Experience of Child Loss

      

None®

      

At least One

1.10

1.01

1.20

1.06

0.94

1.20

Previous Birth Interval

      

First Birth®

      

Less than 24 months

5.92

4.96

7.07

0.14

0.11

0.17

24 to 36 months

5.05

4.26

6.00

0.96

0.83

1.11

More than 36 months

3.91

3.31

4.62

0.82

0.71

0.94

  1. Note: ® shows reference category.
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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