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Table 4 Crude and adjusted odds ratios for factors associated with neonatal mortality

From: Neonatal mortality in Sudan: analysis of the Sudan household survey, 2010

Factor

Crude OR (95%CI)

P value

Adjusted OR (95% CI)

P value

Maternal age in years (n= 6301) (R2=0.023)**

<20

1

 

1

 

20 – 29

1.1 (0.61, 2.00)

0.752

1.1 (0.60, 2.00)

0.758

30 – 39

0.9 (0.50, 1.75)

0.841

0.9 (0.49, 1.72)

0.777

≥40

2.3 (1.16, 4.55)

0.017

2.4 (1.21, 4.78)

0.012

Maternal education (n= 6301) (R2= − 0.017)**

Secondary or above (>8 years)

1

   

Intermediate or less (≤8 years)

1.0 (0.65, 1.60)

0.919

  

Illiterate

1.2 (0.82, 1.92)

0.302

  

Parity* (n= 6301) (R2= 0.013)**

2-4 children

1

   

primiparae

2.3 (1.61,3.23)

<0.00

  

Multiparae ≥5

1.1 (0.10 , 1.61)

0.493

  

Household wealth index (n= 6301) (R2= − 0.034)**

Highest

1

 

1

 

Middle

1.1 (1.11 , 2.21)

0.834

1.1 (0.69 , 1.72)

0.710

Lowest

1.6 (1.11 , 2.21)

0.012

1.6 (1.18 , 2.47)

0.005

Place of Residence (n= 6301) (R2= − 0.001)**

Rural

1

   

Urban

1.0 (0.74 , 1.41)

0.918

  

Child sex (n= 6301) (R2= − 0.047)**

Female

1

 

1

< 0.001

Male

1.6 ( 1.30 , 2.38)

0.017

1.8 (1.31 , 2.42)

 

Household head education (n= 6263) (R2= − 0.007)**

Have some education

1

0.344

  

Illiterate

1.2 (0.86 , 1.55)

   

Antenatal care utilization (n= 6301) (R2= − 0.016)**

Professional health care

1

   

Non/ traditional care

1.2 (0.89 , 1.68)

0.211

  

Ever has tetanus toxoid vaccination (n= 6301) (R2= 0.001)**

Yes

1

   

No

1.0 ( 0.72 , 1.36)

0.948

  

Delivery assistance (n= 6217) (R2= − 0.016)**

Yes

1

   

No

1.0 ( 0.72 , 1.36)

0.948

  

Mode of delivery (n= 6301) (R2= 0.024)**

Vaginal

1

 

1

 

Caesarean section

1.6 (0.98 , 2.60)

0.060

1.6 (1.78 , 2.42)

0.013

Place of delivery (n= 6206) (R2=0.002)**

Home

1

   

Health facility

1.0 (0.72 , 1.46)

0.897

  

Pregnancy complications* (n= 6301) (R2=0.044)**

No

1

   

Yes

1.7 (1.24 , 2.23)

0.001

  

Delivery complications (n= 6301) (R2=0.030)**

No

1

 

1

 

Yes

1.4 (1.06 , 1.90)

0.018

1.4 (1.18, 2.15)

0.002

  1. *Excluded from the model because of co linearity. ** for the crude analysis.
  2. Nagelkerke R2 for the final model = 0.060.