TABLE 2.
Summary of Postimmigration Examination of All Immigrants for Tuberculosis (TB), By Classification: BCHD, Baltimore, MD, 2010–2012
| Characteristic | Post-Immigration Screening Results
|
||||
|---|---|---|---|---|---|
| B1 (n = 108), No. (%) | B2 (n = 43), No. (%) | B3 (n = 2), No. (%) | All Classes (n = 153), No (%) | P | |
| History of prior TB noted in preimmigration paperwork | 29/108 (27%) | 3/43 (7%) | 0/2 (0%) | 32/153 (21%) | .005 |
| Any symptoms at time of evaluation | 19/108 (18%) | 1/43 (2%) | 0/2 (0%) | 20/153 (13%) | .034 |
| Postimmigration HIV test conducted | 70/108 (65%) | 14/43 (33%) | 0/2 (0%) | 84/153 (55%) | < .001 |
| Postimmigration HIV test positive | 0/70 (0%) | 2/14 (14%) | – | 2/84 (2%) | .001 |
| Postimmigration TST results available | 33/108 (31%) | 10/43 (23%) | 0/2 (0%) | 43/153 (29%) | – |
| Postimmigration TST positive (≥ 10mm) | 29/33 (88%) | 10/10 (100%) | – | 39/43 (91%) | – |
| Received QuantiFERON testing | 78/108 (72%) | 12/43 (28%) | 0/2 (0%) | 90/153 (59%) | < .001 |
| QuantiFERON test positive | 42/78 (54%) | 6/12 (50%) | – | 48/90 (53%) | – |
| Abnormal postimmigration chest X-ray | 62/108 (57%) | 3/43 (7%) | 0/2 (0%) | 65/153 (43%) | < .001 |
| Received sputa testinga | 60/108 (56%) | 3/43 (7%) | 0/2 (0%) | 63/153 (41%) | < .001 |
| Sputa smear positive | 0/60 (0%) | 0/3 (0%) | – | 0/63 (0%) | – |
| Sputa culture positive | 3/60 (5%) | 0/3 (0%) | – | 3/63 (5%) | – |
| Completed medical evaluation | 99/108 (92%) | 43/43 (100%) | 2/2 (100%) | 144/153 (94%) | – |
| Active TB | 5/99 (5%) | 1/43 (2%) | 0/2 (0%) | 6/144 (4%) | – |
| LTBI | 39/99 (39%) | 35/43 (81%) | 2/2 (100%) | 76/144 (53%) | – |
| No current LTBI/TB disease | 55/99 (56%) | 7/43 (16%) | 0/2 (0%) | 62/144 (43%) | < .001 |
Note. BCHD = Baltimore City Health Department; LTBI = latent tuberculosis infection; TST = tuberculin skin test. P values presented in this table represent comparison between B classification categories for each variable. Dashes indicate that data are not available.
a
Sputum testing includes acid-fast bacilli smear microscopy and mycobacterial liquid culture.