Table 4. Comparison of the TB-LAMP and real-time PCR by correlation.

Advansure			Total	% Agreement (95% CI)	κ (95% CI)
	Positive (%)	Negative (%)
MTB*	85 (84.2)	18 (15.8)	103	93.8 (90.4–96.0)	0.86 (0.80–0.92)
NTM	-	33 (100)	33
Negative	-	154 (100)	154
Total	85 (29.3)	205 (70.7)	290

NTM was regarded as negative for agreement analysis.

^*Two isolates positive for both MTB and NTM were included.

Abbreviations: TB-LAMP, loop-mediated isothermal amplification assay; MTB, M. tuberculosis; NTM, nontuberculous mycobacteria; κ, kappa coefficient.