Table 1 Characteristics of participants by sport participation trajectory group (N = 3147)
Characteristics | Total sample | Sport participation trajectory groups | p-value | ||
|---|---|---|---|---|---|
Low-stable | High-decreasing | High-stable | |||
Male participants | |||||
Mean age at wave 1 (SD) | 15.61 (1.79) | 15.92 (1.79) | 15.27 (1.71) | 15.12 (1.74) | <.0001 |
Mean depression (SD) | |||||
 Wave 1 | 4.33 (3.29) | 4.68 (3.41) | 4.00 (3.12) | 3.64 (3.03) | <.0001 |
 Wave 2 | 4.20 (3.26) | 4.48 (3.43) | 3.99 (3.12) | 3.72 (2.87) | 0.0001 |
 Wave 3 | 3.50 (3.13) | 3.52 (3.09) | 3.65 (3.30) | 2.99 (2.74) | 0.0097 |
 Wave 4 | 4.29 (3.25) | 4.40 (3.32) | 4.27 (3.17) | 3.82 (3.10) | 0.0289 |
Ever forced to have sex in a non-physical way (%) | |||||
 Wave 1 | 42 (1.79) | 21 (1.64) | 18 (2.26) | 3 (1.09) | 0.3828 |
 Wave 2 | 46 (1.96) | 22 (1.72) | 20 (2.51) | 4 (1.46) | 0.3667 |
 Wave 3 | 63 (2.68) | 28 (2.19) | 28 (3.52) | 7 (2.55) | 0.1886 |
 Wave 4 | 82 (3.49) | 40 (3.13) | 33 (4.15) | 9 (3.28) | 0.4609 |
Ever forced to have sex in a physical way (%) | |||||
 Wave 1 | 34 (1.45) | 16 (1.25) | 13 (1.64) | 5 (1.82) | 0.6597 |
 Wave 2 | 34 (1.45) | 16 (1.25) | 13 (1.64) | 5 (1.82) | 0.6597 |
 Wave 3 | 38 (1.62) | 19 (1.48) | 14 (1.76) | 5 (1.82) | 0.8488 |
 Wave 4 | 43 (1.83) | 22 (1.72) | 15 (1.89) | 6 (2.19) | 0.8583 |
Sport participation ≥5 times per week (%) | |||||
 Wave 1 | 1067 (33.94) | 0 (0.00) | 849 (75.60) | 218 (71.01) | <.0001 |
 Wave 2 | 781 (33.75) | 0 (0.00) | 607 (65.48) | 174 (67.18) | <.0001 |
 Wave 3 | 273 (12.17) | 59 (4.91) | 0 (0.00) | 214 (76.70) | <.0001 |
 Wave 4 | 218 (9.27) | 61 (4.76) | 0 (0.00) | 157 (57.30) | <.0001 |
Total (%) | 3147 | 1716 (46.39) | 1123 (37.46) | 308 (16.15) | Â |
Female participants | |||||
Mean age at wave 1 (SD) | 15.46 (1.78) | 15.72 (1.76) | 14.69 (1.62) | Â | <.0001 |
Mean depression (SD) | |||||
 Wave 1 | 5.43 (3.89) | 5.66 (3.96) | 4.74 (3.59) |  | <.0001 |
 Wave 2 | 5.57 (3.94) | 5.71 (3.94) | 5.22 (3.92) |  | 0.0051 |
 Wave 3 | 4.33 (3.80) | 4.40 (3.80) | 4.16 (3.78) |  | 0.1514 |
 Wave 4 | 5.09 (3.77) | 5.20 (3.80) | 4.78 (3.65) |  | 0.0113 |
Ever forced to have sex in a non-physical way (%) | |||||
 Wave 1 | 224 (8.15) | 181 (8.80) | 43 (6.20) |  | 0.0306 |
 Wave 2 | 260 (9.46) | 205 (9.97) | 55 (7.94) |  | 0.1135 |
 Wave 3 | 416 (15.13) | 318 (15.47) | 98 (14.14) |  | 0.3998 |
 Wave 4 | 547 (19.90) | 415 (20.18) | 132 (19.05) |  | 0.5167 |
Ever forced to have sex in a physical way (%) | |||||
 Wave 1 | 166 (6.02) | 131 (6.35) | 35 (5.05) |  | 0.2135 |
 Wave 2 | 183 (6.64) | 143 (6.93) | 40 (5.77) |  | 0.2888 |
 Wave 3 | 300 (10.89) | 224 (10.86) | 76 (10.97) |  | 0.9366 |
 Wave 4 | 386 (14.01) | 291 (14.11) | 95 (13.71) |  | 0.7944 |
Sport participation ≥5 per week (%) | |||||
 Wave 1 | 515 (15.35) | 0 (0.00) | 515 (62.12) |  | <.0001 |
 Wave 2 | 422 (16.75) | 0 (0.00) | 422 (58.29) |  | <.0001 |
 Wave 3 | 134 (5.12) | 0 (0.00) | 134 (19.45) |  | <.0001 |
 Wave 4 | 115 (4.17) | 62 (3.00) | 53 (7.65) |  | <.0001 |
Total (%) | 3356 | 2527 (68.30) | 829 (31.70) | Â | Â |