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Table 3 Cohen’s kappa coefficients between the diagnostic tests

From: Diagnosis of placental malaria in poorly fixed and processed placental tissue

Tests chosen to compute the κ coefficient κ value p value for H 0 : κ = 0
Test 1 Test 2
Histopathology by P1 Histopathology by P2 −0.0462 0.5448
Histopathology by P1 IHC 0.0594 0.4002
Histopathology by P1 PCR −0.0425 0.5907
Histopathology by P2 IHC 0.2775 0.0005*
Histopathology by P2 PCR 0.2916 0.0003*
IHC PCR 0.3176 <0.0001*
  1. P1 and P2 denote two blinded microscopists
  2. p value < 0.01