Characteristics of index tuberculosis cases, household contacts and study dwellings at baseline by Mycobacterium tuberculosis transmission category.

1n (%) or median [IQR], unless otherwise specified.2C = Chi-squared, E = Exact, K = Kruskal-Wallis, J = Jonckheere-Trepstra, T = Cochran-Armitage Trend, M = McNemar’s Test, S = Score test from generalized estimating equation (GEE) logistic model; W = Wilcoxon rank sum test.3The SNP cluster group for one index case could not be distinguished between 5 or 6a. This participant’s result is shown in the table but is excluded when performing statistical tests.Missing data: Leicester cough questionnaire (6), cough visual analog scale (6), chest radiograph (3), contact with other TB person than index case (1 missing, 1 don’t know), 1st TST (21), 1st or 2nd TST (40), IGRA (161 missing, 4 indeterminate), SNP (5).Infection status of contacts is shown at baseline and at study conclusion (8 weeks).