Table 3. Inter-rater reliability and diagnostic agreement between an in-house LAMP test and AFB stain-fluorescence stain.
| LAMP Test | AFB Stain & Fluorescence stain | ||
|---|---|---|---|
| Positive | Negative | Total | |
| Positive | 40 | 4 | 44 |
| Negative | 4 | 59 | 63 |
| Total | 44 | 63 | 107 |
| Agreement (%) | 92.5% | ||
| Kappa (95%CI, p-value) | 0.85 (0.74–0.95, p<0.001) | ||
| Spearman’s rho (p-value) | 0.85 (p<0.001) * | ||
Abbreviations: LAMP, loop-mediated isothermal amplification; CI, confidence interval.
*95% confidence interval of Spearman’s rank correlation is not estimable.