Table 2: Comparative performance analysis of the diagnostic techniques.

Diagnostic Technique

Positivity Rate

n (%)

Negativity Rate

n (%)

Chi square goodness of fit

x2 (p-value)

Nested IS2404 PCR

122 (86.5%)

19 (13.5%)

-

Conventional IS2404 PCR

104 (73.8%)

37 (26.25)

19.7 (p < 0.001)

BU-LAMP assay

119 (84.4%)

22 (15.6)

0.547 (p = 0.459)

Chi square goodness of fit was determined at 95% confidence interval.