Tuberculosis following first exposure to anti-tumor necrosis factor-alpha therapy

Cumulative incidence of tuberculosis (TB) following first exposure to anti-tumor necrosis factor (anti-TNF) therapy (most recent drug model, with person-years censored at death, last returned follow-up form, or date of switching to second anti-TNF). Numbers in table represent the number of patients eligible for follow-up at the specified follow-up time points.