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Agreement of individual and pooled Ultra tests.
| Pooled N = 99 | ||
|---|---|---|
| Individual | Negative | Positive |
| All four negativea | 34 (34.3) | 1 (1.0) |
| At least one positive | 3 (3.0) | 61 (61.6) |
| Agreement | 95/99 (96.0%) | |
| Kappa | 0.913 | |
| Sensitivity (95% CI) | 0.953 (0.869, 0.990) | |
| Specificity (95% CI) | 0.971 (0.851, 0.999) | |
CI, confidence interval.
Mycobacterium tuberculosis trace classed as negative
