Figure 2

Distribution of children TST negative (a) and TST positive (b) and adolescent TST negative (c) and TST positive (d) results and of adult TB cases from 1997 to 2009 in the community. Overall, 52% of TST negative children were exposed to an adult TB case on their residential plot compared to 64% of TST positive children (p = 0.003), and 59% of TST negative adolescents were exposed to an adult TB case on their residential plot compared to 66% of TST positive adolescents (p = 0.13).