Table 2: Individual Measured Values of the Residents Deviation percentage of the goal length were compared between the surgeons and residents for each task separately (Table 3). The metabolic bariatric surgeons overestimated the 150 cm and 210 cm tasks with 4% (CI 0.4, 9) and 1% (CI -4, 6), respectively. The 180 cm goal length was underestimated by the surgeons with 6% (CI -11, -0.8). The surgical residents underestimated the lengths of the 150, 180, and 210 cm tasks with 12 (CI -18, -6), 16 (CI -19, -13), and 18% (CI -22, -13), respectively. There was a significant difference between the surgeons and residents on all three measured tasks. Resident 1 Resident 2 Resident 3 Resident 4 Total 150 cm, n 10 10 10 10 40 Measured, cm 108 ± 12 172 ± 28 132 ± 24 138 ± 18 137 ± 31 Deviaqon, cm -42 ± 12 22 ± 28 -18 ± 24 -12 ± 18 -13 ± 31 Deviaqon, % -28 ± 8 14 ± 19 -12 ± 16 -8 ± 12 -8 ± 21 Absolute deviaqon, % 28 ± 8 18 ± 14 17 ± 10 12 ± 8 19 ± 12 Between 10% margins 0 of 10 3 of 10 3 of 10 5 of 10 11 of 40 Outside 15% margins 9 of 10 6 of 10 5 of 10 3 of 10 23 of 40 180 cm, n 10 10 10 10 40 Measured, cm 130 ± 15 202 ± 28 149 ± 9 154 ± 9 159 ± 32 Deviaqon, cm -50 ± 15 22 ± 28 -31 ± 16 -26 ± 9 -21 ± 32 Deviaqon, % -28 ± 8 12 ± 16 -17 ± 9 -14 ± 5 -12 ± 18 Absolute deviaqon, % 28 ± 8 15 ± 12 18 ± 9 14 ± 5 19 ± 10 Between 10% margins 0 of 10 3 of 10 1 of 10 2 of 10 6 of 40 Outside 15% margins 10 of 10 4 of 10 6 of 10 4 of 10 24 of 40 210 cm, n 10 10 10 10 40 Measured, cm 148 ± 20 229 ± 28 180 ± 39 175 ± 18 183 ± 40 Deviaqon, cm -62 ± 20 19 ± 28 -30 ± 39 -35 ± 18 -27 ± 40 Deviaqon, % -29 ± 9 9 ± 13 -14 ± 19 -17 ± 8 -13 ± 19 Absolute deviaqon, % 29 ± 9 12 ± 10 20 ± 12 17 ± 8 20 ± 11 Between 10% margins 0 of 10 4 of 10 2 of 10 2 of 10 8 of 40 Outside 15% margins 10 of 10 4 of 10 6 of 10 7 of 10 27 of 40 Values are mean ± standard deviajon. 120 6
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