Distribution and odds ratios of colonisation with S. aureus adjusted for co-colonisation with S. pneumoniae and other risk factors.

aCalculated using a multivariate logistic regression model also including PCV7 vaccination schedule (none, 2-dose, 2+1-dose PCV7 schedule), presence of siblings in the household (no/yes), and sex (male/female).bCalculated using a multivariate logistic regression model also including PCV7 vaccination schedule (none, 2-dose, 2+1-dose PCV7 schedule), day care attendance (no/yes), presence of siblings in the household (no/yes), and sex (male/female).