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Characteristics of the sample
| Year level | Overall | ||||
| 1 | 2 | 3 | 4 | ||
| Response rate (%) | 80 (N = 80) | 82 (N = 76) | 49 (N = 34) | 71 (N = 60) | 72 (N = 250) |
| Gender (%) | |||||
| • Male | 26 (N = 21) | 49 (N = 36) | 21 (N = 7) | 40 (N = 24) | 36 (N = 90) |
| • Female | 74 (N = 59) | 51 (N = 40) | 79 (N = 27) | 60 (N = 36) | 64 (N = 160) |
| Mean age in years (SD) | 19.1 (2.2) | 20.8 (3.1) | 19.9 (1.6) | 21.6 (1.9) | 20.3 (2.6) |
| Mean length of study in years (Range) | 0 (-) | 1.1 (1–3) | 2 (-) | 3.2 (3–5) | 1.4 (0–5) |
| N available subjects | 100 | 93 | 69 | 84 | 346 |
