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Table 2 Comparison of mean performances (%) in each test between Group V and Group S

From: Simulation-based training following a theoretical lecture enhances the performance of medical students in the interpretation and short-term retention of 20 cross-sectional transesophageal echocardiographic views: a prospective, randomized, controlled trial

Views contained in each test Group V(n = 60) Group S(n = 60) P value
Pre-test (total) 8.3 (4.2, 12.5) 8.3 (4.2, 12.5) 0.825
UE Aortic Arch LAX 0 (0, 0) 0 (0, 0) 1.000
ME MC 0 (0,75.0) 0 (0, 25.0) 0.389
ME RVOT 0 (0, 12.5) 0 (0, 12.5) 0.544
TG RV inflow 0 (0, 0) 0 (0, 0) 0.874
Deep TG LAX 0 (0, 16.7) 0 (0, 16.7) 0.082
Post-test (total) 46.2 (38.5, 57.7)a 44.2 (38.5, 56.7)a 0.694
ME Desc Aortic LAX 50.0 (0, 87.5) 50.0 (0, 50.0) 0.671
ME 4C 100.0 (100.0, 100.0) 100.0 (100.0, 100.0) 0.308
ME LAX 54.5 (25.0, 99.1) 43.8 (25.0, 100.0) 0.798
TG LAX 16.7 (0, 16.7) 0 (0, 16.7) 0.568
TG RV inflow 0 (0, 0) 0 (0, 0) 0.747
Retention test 1(total) 63.2 (52.6, 77.6) 89.5 (68.4, 100.0) < 0.001
ME Asc Aortic SAX 16.7 (0, 100.0) 100.0 (100.0, 100.0) < 0.001
ME Desc Aortic SAX 100.0 (100.0, 100.0) 100.0 (100.0, 100.0) 0.023
ME 2C 100.0 (100.0, 100.0) 100.0 (100.0, 100.0) < 0.001
ME RVOT 50.0 (25.0, 100.0) 100.0 (25.0, 100.0) 0.030
TG Basal SAX 100.0 (100.0, 100.0) 100.0 (100.0, 100.0) 0.069
Retention test 2(total) 58.0 (48.0, 72.0)b 74.0 (64.0, 80.0)b < 0.001
ME Desc Aortic SAX 100.0 (100.0, 100.0) 100.0 (100.0, 100.0) 1.000
ME Desc Aortic LAX 100.0 (100.0, 100.0) 100.0 (100.0, 100.0) 1.000
ME RVOT 56.3 (25.0, 100.0) 81.3 (25.0, 100.0) 0.298
ME AV LAX 71.4 (57.1, 85.7) 85.7 (71.4, 100.0) < 0.001
TG LAX 0 (0, 33.3) 33.3 (33.3, 50.0) < 0.001
  1. Note: Data are presented as median and quartiles, analyzed by a 2-sample or paired-sample Mann-Whitney U test. aIndicates the mean total performance was significantly different (P < 0.001, paired-sample Mann-Whitney U test) when compared with Pre-test in the same group. bIndicates the mean total performance was significantly different (P < 0.01, paired-sample Mann-Whitney U test.) when compared with Retention test 1 in the same group. Group V = video-based training group, Group S = simulation-based training