Table 2 Characteristics of participants (n = 24,274) in the COMPASS study at baseline (2017/18 school year)
|  | Total (n = 24,274) | Females (n = 13,204) | Males (n = 11,070) |
|---|---|---|---|
Age, mean (SD) | 14.8 (1.2) | 14.8 (1.2) | 14.8 (1.2) |
Sex, % | Â | Â | Â |
 Females | 54.4 |  N/A | N/A |
 Males | 45.6 |  N/A | N/A |
Ethnicity, % | Â | Â | Â |
 White | 71.6 | 71.2 | 72.1 |
 Black | 2.6 | 2.4 | 2.8 |
 Asian | 10.6 | 10.7 | 10.5 |
 Latin American/Hispanic | 1.9 | 1.9 | 1.9 |
 Other/mixed | 13.3 | 13.8 | 12.7 |
Province, % | Â | Â | Â |
 Ontario | 47.1 | 46.3 | 48.1 |
 Alberta | 5.1 | 4.9 | 5.2 |
 British Columbia | 13.9 | 13.6 | 14.4 |
 Quebec | 33.9 | 35.2 | 32.3 |
School area urban class, % | Â | Â | Â |
 Rural area | 0.6 | 0.6 | 0.5 |
 Small urban population centres | 31.6 | 31.0 | 32.2 |
 Medium urban population centres | 11.9 | 11.9 | 12.1 |
 Large urban population centres | 55.9 | 56.5 | 55.2 |
School-area median income (CAD), % | Â | Â | Â |
 20,000 to 40,000 | 5.8 | 6.0 | 5.5 |
 40,001 to 60,000 | 31.4 | 32.2 | 30.4 |
 60,001 to 80,000 | 42.2 | 41.6 | 42.7 |
 80,000+ | 20.6 | 20.2 | 21.4 |
Weight status, % | Â | Â | Â |
 Underweight | 1.9 | 1.7 | 2.1 |
 Normal weight | 55.7 | 58.4 | 52.4 |
 Overweight | 12.1 | 10.5 | 14.0 |
 Obese | 5.4 | 3.8 | 7.2 |
 Missing | 24.9 | 25.6 | 24.3 |
Weight perception, % | Â | Â | Â |
 Underweight | 16.3 | 11.5 | 21.9 |
 About the right weight | 60.8 | 63.5 | 57.7 |
 Overweight | 22.9 | 25.0 | 20.4 |
Weight loss attempts, % | Â | Â | Â |
 Yes | 32.3 | 41.1 | 21.8 |
 No | 67.7 | 58.9 | 78.2 |
Adherence to individual recommendations for, % | |||
 Vegetables and fruit | 3.9 | 4.6 | 3.1 |
 Grain products | 4.5 | 3.8 | 5.3 |
 Milk and alternatives | 36.4 | 28.9 | 45.5 |
 Meat and alternatives | 55.4 | 65.0 | 43.9 |
 SSB | 28.9 | 30.8 | 26.7 |
 MVPA | 38.5 | 31.5 | 46.8 |
 Screen time | 4.9 | 5.8 | 3.8 |
 Sleep | 48.3 | 46.4 | 50.7 |
 No tobacco smoking | 93.2 | 94.3 | 91.9 |
 No vaping | 83.5 | 86.0 | 80.6 |
 No cannabis use | 86.4 | 87.1 | 85.6 |
 No binge drinking | 75.0 | 74.9 | 75.1 |
Number of recommendations met, % | Â | Â | Â |
 0 | 0.4 | 0.2 | 0.2 |
 1 | 1.4 | 0.8 | 0.7 |
 2 | 3.3 | 1.8 | 1.5 |
 3 | 6.1 | 3.3 | 2.7 |
 4 | 12.8 | 6.8 | 6.0 |
 5 | 22.0 | 11.9 | 10.1 |
 6 | 24.0 | 13.3 | 10.7 |
 7 | 17.7 | 9.8 | 7.9 |
 8 | 8.6 | 4.6 | 4.0 |
 9 | 3.0 | 1.6 | 1.4 |
 10 | 0.6 | 0.3 | 0.3 |
 11 | 0.1 | 0.0 | 0.1 |
 12 | 0.0 | 0.0 | 0.0 |
Number of recommendations met, mean (SD) | 5.6 (1.7) | 5.6 (1.7) | 5.6 (1.8) |
Lifestyle based on overall adherence, %** | |||
 Very unfavourable | 11.1 | 11.1 | 11.2 |
 Unfavourable | 58.9 | 59.0 | 58.7 |
 Intermediate | 29.3 | 29.3 | 29.2 |
 Favourable | 0.7 | 0.6 | 0.9 |
CESD-R-10 score, mean (SD) | 8.0 (5.7) | 9.1 (6.1) | 6.7 (4.8) |
GAD-7 score, mean (SD) | 5.9 (5.3) | 7.2 (5.6) | 4.3 (4.5) |