Table 1 Trainee characteristics: Descriptive analysis of trainee demographics, experience and prior knowledge of ultrasound-guided CVC placement

Male / Female, N (%)

32 / 15 (68.1%, 31.9%)

Age, mean+SD

28.15+3.39

 Female

27.13+3.66

 Male

28.63+3.18

UGY, N (%)

22 (46.8%)

PGY1-2, in general medicine, N (%)

15 (31.9%)

PGY3-4, in specialty, N (%)

10 (21.3%)

 Emergency medicine

3 (6.4%)

 Anesthesiology

1 (2.1%)

 Surgical specialties

4 (8.5%)

 Neurology

2 (4.3%)

CVC placement experience, N (%)

 Practice on simulator, US-guided

41 (87.2%)

 Practice on real patient, landmark guided

20 (42.6%)

 Practice on real patient, US-guided

14 (29.8%)