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Table 3 Results of self-evaluation in study and control group before and after the training

From: Mixed reality for teaching catheter placement to medical students: a randomized single-blinded, prospective trial

  Control group Study group P value*
Before After Before After Before After
Preference for training on dummy 2.90 ± 1.3 2.74 ± 1.2 2.95 ± 1.3 2.93 ± 1.4 0.75 0.38
Preference for training on patient 2.72 ± 1.3 2.74 ± 1.2 2.31 ± 1.2 2.68 ± 1.3 0.04 0.87
Preference for instructor based training 2.24 ± 1.3 2.41 ± 1.4 2.24 ± 1.3 2.24 ± 1.2 0.76 0.53
Residency goal: urology (%) 2.9 2.4 1.7 1.7 0.50 0.67
Residency goal: Surgery residency (%) 11.0 10.5 11.9 11.9 0.78 0.68
Able to perform on a dummy 2.52 ± 1.2 3.85 ± 1.4 2.63 ± 1.0 3.95 ± 1.3 0.69 0.35
Able to perform on a patient 3.5 ± 1.3 4.56 ± 1.5 3.83 ± 1.2 4.68 ± 1.3 0.80 0.10
Theoretical skill-level 2.12 ± 1.1 3.4 ± 1.4 2.44 ± 1.0 3.51 ± 1.2 0.58 0.01
Able to perform while maintaining sterility 2.52 ± 1.2 3.45 ± 1.4 2.59 ± 0.9 3.36 ± 1.1 0.62 0.41
Able to perform independently 3.51 ± 1.5 5.93 ± 0.4 3.69 ± 1.2 4.53 ± 1.3 0.00 0.45
future specialty already decided 3.43 ± 1.8 3.5 ± 1.7 3.49 ± 1.9 3.56 ± 1.8 0.86 0.84
  1. All values are given as mean ± standard deviation unless marked otherwise. Preferences in teaching were ranked on a Likert scale from 1 to 6 (1 = “fully agree” to 6 = “fully disagree” with the given statement, in this case the preference for a specific training method); ability and skill perception was ranked on a Likert scale from 1 to 6 (1 = “not good at all” to 6 = “very good”)
  2. * Significant differences are marked in bold font