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Table 1 Comparison of data between instructors and trainees (mean ± S.D.)

From: Differences of tensile strength in knot tying technique between orthopaedic surgical instructors and trainees

  Instructors Trainees P valuea
Career (years) 10.6 ± 3.7 3.0 ± 0.6 < 0.001
Female/male 2/22 7/17 0.136
Tensile strength (N) 54.0 ± 40.1 77.3 ± 25.6 0.0246
Rupture/slippage 7/17 21/3 < 0.001
  1. aValues obtained using two-tailed Mann–Whitney U test or Fisher exact probability test