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Table 3 Diagnostic agreement of diagnostic tests by Cohen’s kappa (κ) coefficient

From: Strongyloides stercoralis prevalence and diagnostics in Vientiane, Lao People’s Democratic Republic

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
  1. SE Standard error, CI Confidence interval, Baermann Baermann concentration technique, KAPC Koga agar plate culture, RTD-PCR Real-time detection polymerase chain reaction
  2. 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