Table 3.
Characteristics and previous knowledge of the participants
| Variable | PDF-group N = 108 |
Simulator-group N = 118 |
p value |
|---|---|---|---|
| Age (years) | 0.872a | ||
| Median | 24.0 | 24.0 | |
| Range | 19–33 | 21–40 | |
| Sex | 0.278b | ||
| Male | 47 (43.5%) | 43 (36.4%) | |
| Female | 61 (56.5%) | 75 (63.6%) | |
| Semester of the medical student | 0.091a | ||
| Median | 9 | 9 | |
| Range | 7–13 | 7–12 | |
| Affinity to technology (scale 0–100) | 0.002a | ||
| Median | 50.0 | 60.5 | |
| Range | 0.0–100.0 | 0.0–100.0 | |
| General experience with technology (scale 0–100) | 0.008a | ||
| Median | 26.6 | 39.5 | |
| Range | 0.0–83.7 | 0.0–100.0 | |
| General experience in ultrasound (scale 0–100) | 0.079a | ||
| Median | 11.6 | 14.6 | |
| Range | 0.7–60.6 | 0.0–77.2 | |
| Number of previously performed sonographic examinations | 0.445b | ||
| None | 0 (0.0%) | 0 (0.0%) | |
| 1–5 | 26 (24.1%) | 27 (22.9%) | |
| 6–10 | 37 (34.3%) | 47 (39.8%) | |
| 11–20 | 28 (25.9%) | 21 (17.8%) | |
| > 20 | 17 (15.7%) | 23 (19.5%) | |
aMann–Whitney U test
bChi-squared test