Rate ratios between rate in intervention arm over rate in control arm, among those with 1 BCG scar, whether controlled for study variables, separately for clinical forms.

aAll estimates excluding 870 school children (being 2 leprosy cases in control group, 1 in 1999 and other in 2005/6, both PB cases) who had no data for tuberculosis and/or leprosy in geographical area.
bPy: total person years.
cBased on Poisson regression with robust variance estimator specifying cluster (schools), without controlling for confounders.
d4Based on Poisson regression with robust variance estimator without specifying cluster (not adjusted for clustering effect), and controlled for sex, year of birth, incidence of tuberculosis (categorical as in Table 1) and NCDR of leprosy (categorical as in table 1 or continuous variable) in geographical areas before the trial.
eThe same to the regression above, but specifying schools as cluster (adjusted for clustering effect).