Death

p

Total (N)

n

%

RR

IC_95%

Mothers’ age

0.0001

<20

723

182

25.2

1.6

[1.4 - 1.8]

≥20*

5481

863

15.7

1

Mother’s occupation

0.0001

Housewife/Craftswoman

4874

887

18.2

1.53

[1.4 - 1.9]

Civil servant/High school/ University student*

1330

158

11.9

1

Sex

0.0264

Male

3530

627

17.8

1.16

[1.1 - 1.3]

Female*

2674

418

15.6

1

Newborns’ age

0.0001

≤1 day*

4529

649

14.3

1

>1 day

1675

396

23.6

1.6

[1.5 - 1.8]

Place of birth

0.0001

In born*

4304

617

14.34

1

Out born

1900

428

22.53

1.7

[1.5 - 1.9]

Presumed date of childbirth (Weeks of amenorrhea)

0.0001

<37

1855

518

27.92

2.81

[2.45 - 3.22]

≥37*

4349

527

12.11

1

Birth weight

0.0001

Weight (<2500 g)

2216

581

26.22

2.69

[2.35 - 3.09]

Weight (≥2500 g)*

3988

464

11.63

1