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Table 4 Experimentally determined technical and safety parameters for comparing different equipment set-ups during thoracoscopy of calves chronically affected with BRD

From: Thoracoscopy as a safe and effective technique for exploring calves affected with bovine respiratory disease

Equipment set-up VSa IQD a vs. c P = 0.001; b vs c P = 0.005 PS a vs. b P < 0,0001 RT P = 0.043 RL a vs. b P = 0.006
1 (n = 8) 3 (2–4) 1 (1–1)a 3 (3–4)a 3 (1–3) 2 (1–3)a
2 (n = 5) 1 (1–1) 1 (1–1)b 2 (2–4) 3 (2–4) 1 (1–3)
3a (n = 9) 1 (1–1) 3 (3–3) 2 (2–2)b 2 (1–4) 1 (1–1)b
3b (n = 4) 1 (1–1) 2 (2–3)c 2 (2–2) 2.5 (1–4) 1 (1–1)
  1. Parameter abbreviations and scoring are described in Table 1. Values are shown as median (min-max). Numbers in the same column with different superscripts differ significantly, with the corresponding exact P-values indicated at the top of each column
  2. aInter-group differences were not assessed for statistical significance, since VS depends exclusively on approach and is independent of equipment type