Comparison of NAAT test with rapid diagnostic test.

Cohen’s Kappa, which tests the agreement between two tests is negative, showing no agreement. Kendall’s Tau B is also negative, showing very slight negative association (inversion) between the two tests. The association here is very limited.The prevalence detected using the NAAT (considered the gold standard for this study) was 0.1% (95% CI: 0–0.38%).