(A) Annual rates of likely latent tuberculosis (TB) infection
reactivation among Filipino immigrants by year after overseas preimmigration TB
examination. (B) Annual TB rates by year overseas
preimmigration examination among three strata of immigrants: abnormal
preimmigration radiograph evaluated according to 1991 guidelines with sputum
smears only (red), abnormal preimmigration radiograph
evaluated according to 2007 guidelines with both sputum smears and cultures
(blue), and immigrants with normal preimmigration
radiograph (likely latent TB infection reactivation, black).
Inset table summarizes estimated annual rates during Year
1, Years 2–4, and Years 5–9. Immigrants evaluated under 1991 and
2007 guidelines had up to 9 years or 3 years of follow-up time, respectively.
CI = confidence interval.