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Table 3 Interactions 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 3 Model 4
HF interaction Sex interaction
Time ratio 95% CI Overall P-value Time ratio 95% CI Overall P-value
Male effect on LBW(2000–2499)     1.95 [1.31,2.90] 0.1144
Female effect on LBW(2000–2499)     1.17 [0.89,1.54]  
Male effect on LBW(<2000)     9.10 [5.28,15.68]  
Female effect on LBW(<2000)     8.82 [4.95,15.71]  
Effect of private health facility on LBW (2000–2499) 1.18 [0.88,1.59] 0.0009    
Effect of public health facility on LBW (2000–2499) 1.79 [1.27,2.54]     
Effect of private health facility on LBW (<2000) 3.66 [1.78,7.50]     
Effect of public health facility on LBW (<2000) 14.41 [10.06,20.64]     
N 3185 3185
  1. Estimates of a significance p < 0.05 are in bold writing.