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Table 2 Intra-observer variability: for each expert/non-expert, two readings were taken into consideration (one and two) and SD and ICC were calculated

From: Intra-observer and inter-observer errors in CT measurement of torsional profiles of lower limbs: a retrospective comparative study

  Expert 1 Expert 2 Non-expert 1 Non-expert 2
  Δ m SD >10 Δ m SD >10 Δ m SD >10 Δ m SD >10
R-TFA(2–1) 0 2.31 0 0.69 1.55 0 1.15 3.34 0 2.25 3.49 0
R-TFA (3–1) −0.31 2.43 0 0.92 1.50 0 1.92 3.55 0 3.08 5.30 1
R-TFA (3–2) −0.31 1.97 0 0.23 2.09 0 0.77 2.42 0 0.83 2.33 0
R-TTA (2–1) 0.15 2.23 0 1.08 1.71 0 5.69 16.04 6 5 5.97 1
R-TTA (3–1) −0.92 3.33 1 1.08 1.12 0 5.38 15.85 7 6.08 6.50 2
R-TTA (3–2) −1.08 2.25 0 0.46 1.90 0 −0.31 2.10 0 1.08 3.89 0
L-TFA (2–1) 1.23 5.39 1 0.54 1.20 0 −0.77 3.14 0 1.33 4.19 0
L-TFA (3–1) 2.15 5.63 1 0.92 2.18 0 −1 3.29 0 5.33 5.00 3
L-TFA (3–2) 0.92 1.55 0 0.38 1.89 0 −0.23 1.48 0 4 3.74 1
L-TTA (2–1) 0.69 2.36 0 1.69 2.25 0 −0.92 8.76 2 3.33 4.64 1
L-TTA (3–1) 0.54 3.80 0 1.08 1.04 0 −1.15 9.01 3 4.33 5.77 2
L-TTA (3–2) −0.15 3.21 0 −0.62 1.76 0 −0.23 3.22 0 1 4.20 0
R-FAA (2–1) 1.38 5.12 2 0.69 1.89 0 −1.69 4.80 0 1.17 4.63 0
R-FAA (3–1) 1.69 4.61 2 0.38 2.14 0 −1.54 4.88 1 1.17 4.45 0
R-FAA (3–2) 0.31 1.97 0 −0.31 1.55 0 0.15 2.82 0 0 4.92 1
L-FAA (2–1) 1.69 3.15 0 0.69 1.65 0 −2.54 7.32 1 2.42 3.82 0
L-FAA (3–1) 1.69 3.63 1 1.77 2.71 0 −3.69 7.18 3 4.25 6.22 2
L-FAA (3–2) 0 1.63 0 1.08 1.71 0 −1.15 4.49 1 1.83 3.59 0
Average 0.54 3.14   0.71 1.77   −0.01 5.76   2.69 4.59  
Total    8    0    25    14