|  | Female | Male | ||||||
---|---|---|---|---|---|---|---|---|---|
 |  | n | Online | Paper | P | n | Online | Paper | P |
Age at | 16-24 years | 840 | 42.0 | 85.6 | *** | 506 | 48.6 | 91.9 | *** |
Survey | ≥ 25 years | 560 | 58.0 | 14.4 |  | 183 | 51.4 | 8.1 |  |
Ethnicity | white | 1339 | 96.6 | 94.8 | 0.100 | 650 | 93.5 | 95.4 | 0.271 |
 | other | 58 | 3.4 | 5.2 |  | 37 | 6.5 | 4.6 |  |
Sexuality | heterosexual | 1276 | 91.7 | 95.5 | ** | 570 | 70.6 | 92.1 | *** |
 | Lesbian/bisexual | 93 | 8.3 | 4.5 |  | 117 | 29.4 | 7.9 |  |
Number of childhood | ≤ 1 | 949 | 61.6 | 76.6 | *** | 505 | 64.6 | 79.7 | *** |
illnesses§ | ≥ 2 | 451 | 38.4 | 23.4 |  | 184 | 35.4 | 20.3 |  |
Overweight§ | no | 1197 | 85.7 | 85.4 | 0.872 | 617 | 91.8 | 88.3 | 0.129 |
 | yes | 201 | 14.3 | 14.6 |  | 70 | 8.2 | 11.7 |  |
Father at | no | 297 | 20.0 | 21.7 | 0.455 | 143 | 19.1 | 23.6 | 0.162 |
home§ | yes | 1070 | 80.0 | 78.3 |  | 517 | 80.9 | 76.4 |  |
Days off | ≤ 10 | 1122 | 82.4 | 80.1 | 0.284 | 546 | 81.4 | 80.3 | 0.699 |
school per year§ | ≥ 11 | 256 | 17.6 | 19.9 |  | 130 | 18.6 | 19.7 |  |
In poorest socio- | no | 916 | 64.0 | 78.0 | *** | 482 | 68.7 | 78.3 | ** |
economic grouping$§ | yes | 399 | 36.0 | 22.0 |  | 167 | 31.3 | 21.7 |  |