Table 1.
Demographic details and lavage cell counts at recruitment. Demographic details and radiographic scores are of 15 patients with pulmonary tuberculosis with their matched controls; the lavage cell counts are those of 10 patients and 6 controls. All participants were recruited in London, United Kingdom.
| Numbers in parenthesis indicate % | TB | Control |
| Age (median; range in years) | 28; 18–52 | 28; 19–48 |
| Sex (male) | 9 (60) | 8 (53) |
| Ethnicity | ||
| Black African | 9 (60) | 8 (53) |
| Indian | 4 (26) | 4 (26) |
| Other | 2 (14) | 3 (21) |
| X-ray features | ||
| Cavitation | 8 (53) | 0 |
| >50% airspace shadowing of total lung field | 7 (47) | 0 |
| BAL (mean ± SE) | ||
| Total leucocytes (× 104/ml) | 31 ± 8 | 12.8 ± 4.2 |
| lymphocyte count (× 104/ml) | 15 ± 4 | 2.7 ± 1.4 |
| CD4: CD8 ratio | 3.8 ± 1 | 2.55 ± 0.9 |
| IFN-γ copy number | 3390 [1525–7498] | 13 [4–113]; p = 0.0005 |
| Th1/Th2 ratio | 3.5 [3.1–3.8] | 1.1 [.4–1.8]; p = 0.0007 |