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Table 5 Multivariable analyses of factors associated with infant death rate at different child age in a cohort of 866 live births in Banfora Health District (multivariable Cox regression models)

From: The high burden of infant deaths in rural Burkina Faso: a prospective community-based cohort study

Exposures 1st half infancy Postneonatal period Overall infancy
HR [95% CI] HR [95% CI] HR [95% CI]
  n = 727   n = 720   n = 727
N = 60 deaths N = 45 deaths N = 79 deaths
Distance to health facility    
 · ≤5 km 1.5 [0.8-3.1]a   1.6 [0.8-2.8]c
 · >5 km 1   1
History of child death    
 · Yes 1.5 [1.0-2.7]a 1.6 [1.0-2.6]c  
 · No 1 1  
Polygynous household    
 · Yes 2.4 [1.3-4.3]a 2.0 [1.1-3.6]b 2.4 [1.4-4.0]c
 · No 1 1 1
Mother sleeps under bednet    
 · Yes   1 1
 · No   1.8 [0.9-3.4]b 1.3 [0.8-2.1]c
Season of birth    
 · Dry season (Nov-Apr) 1.4 [0.8-2.4]a   1.4 [0.9-2.1]c
 · Rainy season (May-Oct) 1   1
Sex of newborn    
 · Girl 1   1
 · Boy 1.8 [1.0-3.1]a   1.2 [0.8-2.0]c
Low anthropometric z-scores at week-3 visit    
 · Yes   3.3 [1.8-6.0]b  
 · No   1  
Twin births    
 · Yes 10.6 [5.4-20.8]a   8.4 [4.6-15.3]c
 · No 1   1
  1. aAdjusted for distance to nearest health facility, history of child death, polygyny, season of birth, gender of the newborn, twinship and for clustering.
  2. bAdjusted for polygyny, maternal use of bednet, anthropometric z-scores at week-3 and for clustering.
  3. cAdjusted for distance to nearest health facility, history of child death, polygyny, maternal use of bednet, season of birth, gender of the baby, twinship and for clustering.
  4. Adjustment for clustering was done fitting a Cox Gamma shared frailty model in STATA/SE 11.0.