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Table 2 Cohen’s κ coefficients for sedimentation/flotation, Mini-FLOTAC and FECPAKG2 compared to the gold standard in 1067 equine faecal samples

From: Comparison of FECPAKG2, a modified Mini-FLOTAC technique and combined sedimentation and flotation for the coproscopic examination of helminth eggs in horses

Method No. positive gold standarda (frequency) No. positive No. false negative Percentage of positive samples detected false negative Cohen’s κ
Strongyle eggs 524 (49.1%)     
Mini-FLOTAC   436 88 16.8 0.83
Sed/flo   496 28 5.3 0.95
FECPAKG2   317 207 39.5 0.61
Parascaris spp. eggs  55 (5.2%)     
Mini-FLOTAC   43 12 21.8 0.87
Sed/flo   49 6 10.9 0.94
FECPAKG2   20 35 63.6 0.52
Anoplocephalidae eggs 31 (2.9%)     
Mini-FLOTAC 31 28 3 9.7 0.97
Sed/flo   29 2 6.5 0.95
  1. aThe gold standard was defined by counting every sample as positive that was diagnosed positive in at least one sample
  2. Sed/flo, Sedimentation/flotation method