Table 5 Multivariable Cox proportional hazard model

Age in 5-year groups

-0.18498

0.83

0.8

0.87

-8.63

0.00000

Number of antenatal visits during pregnancy

0.04681

1.05

0.99

1.11

1.699

0.08919

Timing of 1st antenatal check months

-0.00896

0.99

0.96

1.02

-0.543

0.58702

Number of household members

-0.03794

0.96

0.94

0.99

-2.717

0.00657

Current Marital Status (Married as reference)

 Never in Union

-0.9688

0.38

0.33

0.44

-13.25

0.00000

 Divorced, Separated, Widowed

-0.7788

0.46

0.4

0.53

-10.66

0.00000

Had terminated pregnancy

-0.12186

0.89

0.8

0.98

-2.45

0.01415

Delivered by Cesarean delivery

0.16492

1.18

1.07

1.3

3.449

0.00056

Have insurance

0.1382

1.15

1.05

1.26

2.963

0.00304

Region (reference as Kigali)

 South

0.16233

1.18

1.02

1.36

2.217

0.02657

 West

-0.12637

0.88

0.76

1.02

-1.698

0.08941

 North

0.25628

1.29

1.1

1.51

3.191

0.00141

 East

0.27882

1.32

1.14

1.53

3.743

0.00018

Religion (reference as Adventists)

 Catholic

0.12607

1.13

1.01

1.27

2.194

0.02823

 Muslim

0.2052

1.23

0.97

1.56

1.673

0.09416

 Others

-0.03406

0.97

0.77

1.22

-0.291

0.77068

 Protestant

-0.02338

0.98

0.88

1.09

-0.426

0.66952

Highest Education Level (reference: No education)

 Primary

0.14646

1.16

1.02

1.31

2.287

0.02215

 Secondary

0.06157

1.06

0.92

1.23

0.810

0.41766

 Higher

-0.09602

0.91

0.73

1.13

-0.864

0.38729

Total children ever born

0.04291

1.04

1.01

1.08

2.463

0.01375

Ideal number of children

-0.09978

0.91

0.88

0.93

-7.026

0.00000

Problem getting money for medical

0.02814

1.03

0.95

1.11

0.733

0.46331

Number of children under 5-years

0.16

1.17

1.11

1.25

5.254

0.00000

Problem distance to health facility

-0.11647

0.89

0.82

0.97

-2.703

0.00685