Figure 3.

Cumulative person-years (py) of observation (gray bars) and age-specific rate of tuberculosis (TB) diagnosis per 100,000 py (blue lines). (A) Among 105,987 Filipino immigrants with a normal preimmigration radiograph, young adults contributed most py of observation. The TB rate was high in late adolescence, dipped in the twenties, and rose to peak around age 50. (B) Among 17,127 Filipino immigrants with abnormal preimmigration radiograph, elderly persons contributed the most py of observation. The TB was highest in the youngest age and declined consistently over time. Age-specific rates are smoothed with a centered weighted 10-year moving average.