| Cohort 1 (n = 89) | Cohort 2 (n = 97) | Cohort 3 (n = 60) |  |
---|---|---|---|---|
Variables | n (%) | n (%) | n (%) | P-valuea |
Age in years | Â | Â | Â | 0.780 |
 20–25 | 44 (51) | 44 (46) | 27 (45) |  |
 26–30 | 23 (27) | 27 (28) | 22 (37) |  |
 31–35 | 10 (12) | 11 (12) | 5 (8) |  |
 Over 35 | 8 (9) | 12 (13) | 4 (7) |  |
 Do not wish to disclose | 1 (1) | 1 (1) | 2 (3) |  |
Gender | Â | Â | Â | 0.029* |
 Woman | 70 (82) | 88 (94) | 56 (93) |  |
 Man | 14 (16) | 6 (6) | 3 (7) |  |
 Do not wish to disclose | 2 (2) |  |  |  |
Attended/watched quality improvement lecture (Yes) | 70 (81) | 86 (89) | 59 (98) | 0.007** |
Previous experience of quality improvement projects (Yes) | 34 (40) | 39 (41) | 33 (55) | 0.135 |