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Table 3 Agreement between ITS2-PCR in relation to direct and serological methods

From: Molecular characterization of Dirofilaria spp. circulating in Portugal

Test Total no. of samples Positive (%) Negative (%) K P
Witness 878 65 (84.4) 739 (92.3) 0.593 0.042
Knott 878 107 (93.0) 750 (98.3) 0.930 0.018*
Acid phosphatase 134 97 (97.0) 14 (43.8) 0.513 0.088
  1. K: level of agreement between each pair of tests (positive or negative results in both tests)
  2. *P < 0.05