Table 2.
Demographic and clinical/laboratory characteristics of the study group used for the whole-blood stimulation assays
| Characteristic | Value for each study participant group |
|||
|---|---|---|---|---|
| HHCa |
TB indexb | HIV+c | ||
| TST− | TST+ | |||
| Sample size | 4 | 12 | 5 | 5 |
| Mean age (yr) (range) | 34 (10–61) | 32.1 (12–56) | 31.2 (22–38) | 32.8 (27–44) |
| No. (%) of males | 2 (50%) | 3 (25%) | 3 (60%) | 3 (60%) |
| BCG vaccinated | Yes | Yes | Yes | Yes |
| No. with each TST response | ||||
| 0–10 mm | 4 | 0 | NA | 2 |
| 11–15 mm | 0 | 4 | NA | 0 |
| >15 mm | 0 | 8 | NA | 2 |
a
HHC, household contact; TST, tuberculin skin test; TST−, negative TST; TST+, positive TST.
b
TB index cases do not undergo TST tests. NA, not applicable.
c
One HIV-positive (HIV+) patient was not tested with the TST.