Table 1.
Demographics
| Training Cohort |
Test Cohort |
TB Progressor Cohort |
|||||
|---|---|---|---|---|---|---|---|
| Persistent QFT+ | Recent QFT+ | Persistent QFT+ | Recent QFT+ | TB | Progressors | Nonprogressors | |
| n | 30 | 30 | 25 | 25 | 25 | 39 | 39 |
| Sex, F | 21 | 19 | 12 | 9 | 3 | 14 | 28 |
| Age, median (IQR), yr | 15 (14–16) | 15 (14–16) | 15 (14–16) | 15 (14–16) | 32 (21–42) | 16 (15–17) | 16 (14–17) |
| Ethnicity: colored, n | 26 | 29 | 23 | 23 | 14 | 36 | 37 |
| Ethnicity: Black, n | 4 | 1 | 2 | 1 | 11 | 3 | 2 |
| Ethnicity: Indian, n | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
Definition of abbreviations: IQR = interquartile range; QFT = QuantiFERON-TB Gold In-Tube; TB = tuberculosis.