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Geometric mean of baseline IFN-γ levels by TST conversion and BCG vaccination among 222 household contacts of infectious tuberculosis cases*
| BCG vaccinated | BCG unvaccinated | |
|---|---|---|
| Geometric mean (95% confidence interval) | ||
| Converter | ||
| Yes | 617 (23, 16,395) | 144 (2, 9,524) |
| No | 95 (2, 6,142) | 145 (6, 3,810) |
IFN-γ = interferon-γ; TST = tuberculin skin test; BCG = bacille Calmette-Guérin
