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Table 3 Comparison of use of diagnostic tests in 194 critical cases of colic and 624 non-critical cases

From: Prospective study of the primary evaluation of 1016 horses with clinical signs of abdominal pain by veterinary practitioners, and the differentiation of critical and non-critical cases

  Non-critical Critical Significance
Rectal examination 72.7 % (454/624) 83.9 % (162/193) P ≤ 0.002
Nasogastric intubation 34.0 % (207/608) 47.9 % (91/190) P ≤ 0.001
Blood sample 16.3 % (99/606) 22.8 % (43/189) P < 0.05
Abdominal paracentesis 5.7 % (34/597) 15.2 % (29/191) P < 0.0001