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Table 4 Differences between CNF and SAF for individual parasitic stages

From: Diagnosis of gastrointestinal parasites in reptiles: comparison of two coprological methods

Parasite stages Number of samples Statistical results
  Negative in both tests Only positive in CNF Only positive in SAF Pos in CNF and SAF Fisher's exact test McNemar test for marginal homogeneity Differences of the probabilities of detection between CNF and SAF (%)
Oocysts 42 10 2 5 0.009 0.04 13,6
Flagellates 44 15 0 0 Ø3 < 0.0001 25,4
Oxyurids 35 12 0 12 < 0.0001 0.0005 20,3
Ascarids 46 5 1 7 < 0.0001 0.22 6,8
Strongylids (eggs + larvae) 41 1 5 12 < 0.0001 0.22 6,8
Nematodes1 32 9 1 17 < 0.0001 0.02 13,6
Trematodes 50 0 4 5 < 0.0001 0.13 6,8
‘Heavy’ parasitic stages2 24 6 17 12 0.09 0.03 18,6
  1. The association between the number of parasites found in each method was tested using Fisher's exact test and the marginal homogeneity was checked with the McNemar test.
  2. 1Strongylid-, ascarid-, spirurid-, strongyloid- and Capillaria -type eggs.
  3. 2Larvae, trematode eggs, amoebae, ciliates.
  4. 3Fischer exact test no applicable.