Odds Ratio for Association between MDA and Disease with and without Adjustment for Clonal Complex Restricted by Age Group.

*Cases are divided into the age groups 0�C10 years and 11�C30 years. Carried strains are carriage isolates from adolescents and young adults. Sample sizes exclude isolates dropped from the models due to complete prediction as indicated in the methods.?Adjustment is for clonal complex modelled as a categorical variable. Clonal complexes with less than 15 isolates and unassigned STs are grouped together. Clonal complexes with 15 or more isolates are 8, 11, 22, 23, 32, 35, 41/44, 53, 60, 103, 167, 198, 213, 269, 1157.