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Odds ratio of smoking status and urea reduction ratio of < 73% with latent tuberculosis.
| Variables | IGRA (+) n = 47 |
IGRA (–) n = 68 |
P value | OR (95% CI) |
|---|---|---|---|---|
| Smoking status | ||||
| Smokers | 30 (63.8) | 28 (41.2) | 0.017* | 2.52 (1.17–5.42) |
| Non-smokers | 17 (36.2) | 40 (58.8) | ||
| Urea reduction ratio | ||||
| <73% | 29 (61.7) | 26 (38.2) | 0.013* | 1.58 (0.62–4.03) |
| ≥73% | 18 (38.3) | 42 (61.8) | ||
