Table 1—

Baseline characteristics of subjects

VariablesActive TBLow risk for TB
Subjects n87131
Age yrs48.0±16.415.7±0.5#
M:F ratio58:29131:0#
BCG vaccination45 (51.7)131 (100.0)#
TST size mm12.5±10.04.0±5.4#
  • Data are presented as mean±sd or n (%), unless otherwise stated. TB: tuberculosis; M: male; F: female; BCG: bacille Calmette–Guérin; TST: tuberculin skin test. #: p<0.05 compared with active TB.