Table 1 Sample descriptives by sex at T1 (2015/16)
|  | Total sample (n = 1,917) n (%) | Females (n = 1,011) n (%) | Males (n = 906) n (%) | Chi-square /t | P value |
|---|---|---|---|---|---|
Age | |||||
 13 | 90 (5) | 45 (4) | 45 (5) | 0.317 | 0.957 |
 14 | 1473 (77) | 778 (77) | 695 (77) | ||
 15 | 348 (18) | 185 (18) | 163 (18) | ||
 16 | 6 (0) | 3 (0) | 3 (0) | ||
Ethno-racial identity | |||||
 Non-racialized | 1407 (73) | 742 (73) | 665 (73) | 0.0167 | 0.897 |
 Racialized | 500 (26) | 262 (26) | 238 (26) | ||
 Missing | 10 (0) | 7 (1) | 3 (0) | ||
Weekly spending money | |||||
 Zero | 476 (25) | 254 (25) | 222 (24) | 11.200 | 0.024 |
 $1-$20 | 786 (41) | 425 (42) | 361 (40) | ||
 $21-$100 | 319 (17) | 157 (15) | 162 (18) | ||
 $100+ | 63 (3) | 22 (2) | 41 (4) | ||
 Don’t know | 260 (13) | 145 (14) | 115 (13) | ||
 Missing | 13 (1) | 8 (1) | 5 (0) | ||
PE participation | |||||
 Yes | 952 (50) | 500 (49) | 452 (50) | 0.266 | 0.876 |
 Yes, but not this semester | 755 (39) | 396 (40) | 359 (40) | ||
 No | 191 (10) | 104 (10) | 87 (10) | ||
 Missing | 19 (1) | 11 (1) | 8 (1) | ||
MVPA (daily) | |||||
 Minutes (median, IQR) | 107.1 (64.3–154.3) | 96.4 (62.1–147.9) | 115.7 (72.9–160.7) | 4.106 | < 0.0001 |
 Missing | 90 (5) | 40 (4) | 50 (5) | ||
Guideline adherence (past week) | |||||
 Yes | 926 (48) | 428 (42) | 498 (55) | 30.634 | < 0.0001 |
 No | 953 (50) | 562 (55) | 391 (43) | ||
 Missing | 38 (2) | 21 (2) | 17 (2) | ||
Strength training | |||||
 0 days | 361 (19) | 189 (1) | 172 (9) | 2.680 | 0.444 |
 1–3 days | 826 (43) | 452 (45) | 374 (41) | ||
 4–7 days | 706 (37) | 357 (35) | 349 (38) | ||
 Missing | 24 (1) | 13 (1) | 11 (1) | ||
Sedentary behaviour (daily) | |||||
 Hours (median, IQR) | 6.0 (4.0–8.5) | 6.0 (3.75–8.5) | 6.0 (4.0–8.5) | 0.388 | 0.698 |
 Missing | 80 (4) | 46 (4) | 34 (4) | ||
Varsity sports | |||||
 Yes | 841 (44) | 416 (41) | 425 (47) | 6.807 | 0.009 |
 No | 1058 (55) | 587 (58) | 471 (52) | ||
 Missing | 18 (1) | 8 (1) | 10 (1) | ||
Community sports | |||||
 Yes | 1073 (56) | 506 (50) | 567 (62) | 30.969 | < 0.0001 |
 No | 830 (43) | 498 (49) | 332 (37) | ||
 Missing | 14 (1) | 7 (1) | 7 (1) | ||
Intramural sports | |||||
 Yes | 803 (42) | 417 (41) | 386 (43) | 0.338 | 0.561 |
 No | 1098 (57) | 585 (58) | 513 (57) | ||
 Missing | 16 (1) | 9 (1) | 7 (1) | ||
Sport participation | |||||
 Yes | 1370 (71) | 683 (67) | 687 (76) | 16.05 | 0.0003 |
 No | 539 (28) | 323 (32) | 216 (24) | ||
 Missing | 8 (0) | 5 (0) | 3 (0) | ||