Variable | Total | Heterosexual | Sexual minorities* | Unsure | χ2/F | P values |
No (%) | No (%) | No (%) | No (%) | |||
Total | 150 822 (100.00) | 116 774 (78.6) | 6685 (4.1) | 27 363 (17.3) | ||
Sex | 182.9 | <0.001 | ||||
Male | 72 409 (51.8) | 57 343 (52.8) | 2483 (41.4) | 12 583 (49.7) | ||
Female | 78 413 (48.2) | 59 431 (47.2) | 4202 (58.6) | 14 780 (50.3) | ||
Age (year)† | 15.1 (0.4) | 15.3 (0.5) | 15.1 (0.4) | 14.1 (0.3) | 754.33 | <0.001 |
Academic pressure | 567.69 | <0.001 | ||||
None | 23 387 (15.8) | 17 051 (14.9) | 1060 (16.1) | 5276 (19.8) | ||
Less | 69 359 (46.5) | 53 061 (46.1) | 2648 (39.9) | 13 650 (49.8) | ||
Medium or great | 58 076 (37.7) | 46 662 (39.0) | 2977 (44.0) | 8437 (30.4) | ||
HSS | 204.56 | <0.001 | ||||
Very good | 30 766 (22.7) | 22 812 (21.8) | 1456 (24.2) | 6498 (26.6) | ||
Good | 90 894 (60.3) | 71 306 (61.1) | 3748 (55.4) | 15 840 (57.4) | ||
Fair or poor | 29 162 (17.0) | 22 656 (17.1) | 1481 (20.4) | 5025 (16.0) | ||
Current smoking | 288.12 | <0.001 | ||||
No | 143 032 (94.6) | 110 194 (94.1) | 6212 (93.0) | 26 626 (97.3) | ||
Yes | 7790 (5.4) | 6580 (5.9) | 473 (7.0) | 737 (2.7) | ||
Current drinking | 818.05 | <0.001 | ||||
No | 126 765 (84.0) | 96 909 (82.9) | 5072 (76.6) | 24784 (90.5) | ||
Yes | 24 057 (16.0) | 19 865 (17.1) | 1613 (23.4) | 2579 (9.5) | ||
Bullying experience | 57.58 | <0.001 | ||||
No | 138 523 (91.6) | 107 767 (92.0) | 5668 (83.9) | 25 088 (91.3) | ||
Yes | 12 299 (8.4) | 9007 (8.0) | 1017 (16.1) | 2275 (8.7) |
All numbers were unweighted, whereas all percentages were adjusted for sampling weights.
*Sexual minorities included adolescents who reported same-sex or both-sex romantic attraction.
†Age data are presented as the means (SE).
HSS, household socioeconomic status.