Table 3.

Diagnostic agreement of diagnostic tests by Cohen’s kappa (κ) coefficient

Diagnostic methods	κ coefficient	SE	95% CI	P-value
Baermann and KAPC	0.642	0.0981	0.456–0.828	0.0001
Baermann and RTD-PCR	0.589	0.0971	0.404–0.774	0.0001
KAPC and RTD-PCR	0.534	0.0971	0.341–0.727	0.0001

SE Standard error, CI Confidence interval, Baermann Baermann concentration technique, KAPC Koga agar plate culture, RTD-PCR Real-time detection polymerase chain reaction

Interpretation of Cohen’s kappa coefficient: 0.01–0.20 poor agreement, 0.21–0.40 fair agreement, 0.41–0.60 moderate agreement, 0.61–0.80 substantial agreement, 0.81–0.99 strong agreement