Table 2.
Characteristics of participants who progressed to active tuberculosis
| All participants (n=97) | Per-protocol population (n=77) | ||
|---|---|---|---|
| Contact | 63 (65%) | 51 (66%) | |
| Immigrant | 34 (35%) | 26 (34%) | |
| Sex | |||
| Female | 47 (48%) | 37 (48%) | |
| Male | 50 (52%) | 40 (52%) | |
| Age (years) | |||
| Median (IQR) | 30 (26–38) | 30 (26–38) | |
| ≤35 years | 66 (68%) | 52 (68%) | |
| >35 years | 31 (32%) | 25 (32%) | |
| UK born | |||
| No | 81 (84%) | 64 (83%) | |
| Yes | 16 (16%) | 13 (17%) | |
| BCG vaccination* | |||
| Yes | 72 (74%) | 57 (74%) | |
| No | 11 (11%) | 10 (13%) | |
| Data missing | 14 (14%) | 10 (13%) | |
| Ever smoked | |||
| Yes | 18 (19%) | 15 (19%) | |
| No | 79 (81%) | 62 (81%) | |
| BMI (kg/m2) | |||
| Mean (SD) | 23·6 (4·5) | 23·4 (4·5) | |
| Data missing | 8 (8%) | 6 (8%) | |
Data are n (%), median (IQR), or mean (SD). BMI=body-mass index.
*
Ascertained by scar inspection, emdical record, or reliable recall.