TABLE 3.

True positive and true negative samples detected by each method and sensitivity, specificity and 95% confidence intervals in relation to the histopathology results.

Methods	True positive No. (%)	Sensitivity	95% confidence interval	True negative No. (%)	Specificity	95% confidence interval
rpoB- PCR	14/70 (20)	20%	(11.39–31.27%)	10/10 (100)	100%	(69.15–100%)
IS6110- PCR	34/70 (48.6)	48.6%	(36.44–60.83%)	10/10(100)	100%	(69.15–100%)
rpoB-nested PCR	60/70 (85.7)	85.7%	(75.29–92.93%)	10/10(100)	100%	(69.15–100%)
Nested PCR–cloning	67/70 (95.7)	95.7%	(87.98–99.11%)	10/10(100)	100%	(69.15–100%)