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Table 5 Breastfeeding at 3 months of age on Infection of Middle Ear between 3 and 6 months of age

From: The relationship between breastfeeding and reported respiratory and gastrointestinal infection rates in young children

Factor N % Reporting infection of middle ear by whether or not child still breastfeeding at 3 months of age Breastfeeding on odds of infection of middle between 3 and 6 months of age
No Yes a-OR 95%CI Interaction
p-value
Gender
 Female N = 3276 14.1% 9.0% 0.55 0.41–0.74  
 Male N = 3418 12.2% 11.4% 1.02 0.77–1.35 0.02
Continent
 US N = 2665 17.4% 13.6% 0.76 0.58–0.99  
 Europe N = 4029 9.1% 8.4% 0.77 0.57–1.05 0.68
Season age 3mo
 Dec – Feb N = 1595 14.2% 7.8% 0.45 0.29–0.70  
 Mar – May N = 1275 15.6% 12.1% 0.77 0.53–1.12  
 Jun – Aug N = 1672 12.8% 13.1% 1.00 0.67–1.48  
 Sept - Nov N = 1730 10.4% 8.1% 0.85 Few infections 0.02
  1. a-ORs = odds ratio are adjusted (a) for age of mother at birth, maternal education, single child, number of rooms in household, parental working and smoking status when child was 9 months of age, if the child was a first degree relative of a type 1 diabetic individual, whether daycare or social group had started at the last visit and other variable not being examined for interaction (gender, continent or season at 3 months of age). Bold face type indicates statistical significance with a p-value < 0.05