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Table 2 Unadjusted and adjusted lognormal models estimating the effects of child birth weight on timing of the BCG vaccination

From: Effects of low birth weight on time to BCG vaccination in an urban poor settlement in Nairobi, Kenya: an observational cohort study

 

Model 1

Model 2

Unadjusted

Adjusted

Time ratio

95% CI

Overall P-value

Time ratio

95% CI

Overall P-value

Child’s birth weight (ref: NBW (weight > =2500 grams))

      

 2000-2499 grams

1.22

[0.98,1.51]

<0.0001

1.44

[1.15,1.82]

<0.0001

 <2000 grams

7.73

[5.52,10.82]

 

8.97

[6.01,13.39]

 

Settlement area (ref: Korogocho)

      

 Viwandani

   

0.91

[0.82,1.01]

0.079

Ethnic group (ref: Kikuyu)

      

 Luhya

   

1.16

[1.02,1.32]

<0.0001

 Luo

   

1.22

[1.07,1.40]

 

 Kamba

   

1.27

[1.11,1.44]

 

 Others

   

1.31

[1.14,1.51]

 

Mother’s level of education (incomplete primary)

      

 Completed primary

   

0.91

[0.81,1.02]

0.1773

 Secondary+

   

0.90

[0.80,1.02]

 

Pregnancy wanted ness (ref: wanted now)

      

 Wanted later

   

1.05

[0.95,1.16]

0.1492

 Not at all

   

1.16

[0.99,1.35]

 

Child’s gender (ref: male)

      

 Female

   

0.95

[0.87,1.03]

0.221

Type of facility (ref: private HF)

      

 Public HF

   

0.48

[0.44,0.53]

<0.0001

N

3602

3185

  1. Estimates of a significance p < 0.05 are in bold writing.