Demographic table of acute cases and healthy controls.

Data indicates counts for cases (acute wheeze diagnosis) and healthy controls. N indicates the total number of subjects that information was obtained for each group. Count data is indicted as a count (% positive of N). Continuous data is recorded at median of N (mix–max). Differences in clinical variables were calculated using Wilcoxon sign rank test, differences in ethnic groups, sampling season an RV type were calculated using Chi-squared.