Volume 25, Number 3—March 2019
Research
Window Period Prophylaxis for Children Exposed to Tuberculosis, Houston, Texas, USA, 2007–2017
Andrea T. Cruz
and Jeffrey R. Starke
and Jeffrey R. Starke
Table 1
Characteristics of 752 children exposed to index tuberculosis patients, index patients, and index case Mycobacterium tuberculosis isolates, Houston, Texas, USA, 2007–2017
| Characteristic | Value* |
|---|---|
| Demographics | |
| Age, y, median (interquartile range) | 2.4 (1.2–3.6) |
| Sex | |
| F | 380 (50.5) |
| M | 372 (49.5) |
| Race/ethnicity | |
| Hispanic | 493 (65.6) |
| Black | 141 (18.8) |
| Asian | 78 (10.4) |
| White | 30 (4.0) |
| Biracial | 10 (1.3) |
| Residing in home of index patient | |
| Yes | 311 (41.4) |
| No |
441 (58.6) |
| Index patient microbiology | |
| Acid-fast bacilli smear positive | 513 (68.2) |
| Acid-fast bacilli culture positive |
680 (90.4) |
| Index isolate drug susceptibilities, n = 680 | |
| Isoniazid and rifampin susceptibility | 635 (93.4) |
| Isoniazid resistance† | 32 (4.7) |
| Isoniazid and rifampin resistance | 13 (1.9) |
| Rifampin monoresistance |
1 (0.1) |
| Index patient sample used for culture | |
| Sputum | 637 (84.7) |
| Bronchoalveolar lavage | 93 (12.4) |
| Lung biopsy | 11 (1.5) |
| Pleural fluid | 11 (1.5) |
*Values are no. (%), except where specified. Percentages might not sum up to 100% because of rounding.
†Seven isolates were resistant to isoniazid and streptomycin, and 5 were resistant to isoniazid and ethambutol; the remainder of isolates had isoniazid monoresistance.
Page created: February 19, 2019
Page updated: February 19, 2019
Page reviewed: February 19, 2019
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.