Distribution of independent variables and confounders across dependent variables
| ariables | Sexual experience (n (%)) | Being sexually harassed (n (%)) | Sexually harassing others (n (%)) | Sexting (n (%)) | Nude chats (n (%)) | |||||
| No | Yes | No | Yes | No | Yes | No | Yes | No | Yes | |
| Living with both biological parents | ||||||||||
| No | 961 (92.3) | 80 (7.7)* | 954 (91.5) | 89 (8.5) | 884 (84.7) | 160 (15.3)* | 742 (71.3) | 299 (28.7)† | 1017 (97.6%) | 25 (2.4)* |
| Yes | 2691 (95.8) | 118 (4.2) | 2602 (92.5) | 212 (7.5) | 2471 (87.9) | 341 (12.1) | 2123 (75.2) | 699 (24.8) | 2783 (98.9%) | 31 (1.1) |
| Satisfaction with family life | ||||||||||
| Very unhappy | 45 (81.8) | 10 (18.2)* | 45 (81.8) | 10 (18.2)* | 42 (76.4) | 13 (23.6)* | 33 (61.1) | 21 (38.9)* | 51 (94.4) | 3 (5.6)† |
| Unhappy | 195 (89.4) | 23 (10.6) | 196 (89.5) | 23 (10.5) | 161 (73.5) | 58 (26.5) | 140 (64.2) | 78 (35.8) | 213 (97.3) | 6 (2.7) |
| Fair | 1205 (94.9) | 65 (5.1) | 1163 (91.2) | 112 (8.8) | 1095 (85.9) | 179 (14.1) | 919 (72.0) | 357 (28.0) | 1252 (98.3) | 22 (1.7) |
| Happy | 1558 (95.5) | 73 (4.5) | 1512 (92.8) | 117 (7.2) | 1448 (88.9) | 180 (11.1) | 1238 (75.7) | 397 (24.3) | 1612 (99.0) | 17 (1.0) |
| Very happy | 613 (95.6) | 28 (4.4) | 603 (93.8) | 40 (6.2) | 575 (89.3) | 69 (10.7) | 504 (78.3) | 140 (21.7) | 635 (98.6) | 9 (1.4) |
| Gender | ||||||||||
| Male | 2096 (94.4) | 125 (5.6) | 1977 (88.9) | 246 (11.1)* | 2046 (92.1) | 176 (7.9)* | 1574 (70.6) | 655 (29.4)* | 2176 (97.9) | 47 (2.1)* |
| Female | 1578 (95.3) | 77 (4.7) | 1603 (96.6) | 57 (3.4) | 1331 (80.2) | 329 (19.8) | 1310 (78.9) | 350 (21.1) | 1648 (99.3) | 11 (0.7) |
| Sexual orientation | ||||||||||
| Bisexual/homosexual | 754 (95.9) | 32 (4.1) | 723 (91.9) | 64 (8.1) | 671 (85.4) | 115 (14.6) | 582 (73.7) | 208 (26.3) | 772 (98.1) | 15 (1.9) |
| Heterosexual | 2887 (94.5) | 168 (5.5) | 2828 (92.4) | 233 (7.6) | 2677 (87.4) | 385 (12.6) | 2277 (74.3) | 786 (25.7) | 3018 (98.6) | 42 (1.4) |
| Age (years) | ||||||||||
| Mean (SD) | 15.2 (1.9) | 17.1 (1.5)‡ | 15.2 (1.9) | 15.7 (1.8)‡ | 15.2 (1.9) | 15.8 (1.8)‡ | 15.2 (2.0) | 15.3 (1.8) | 15.3 (1.9) | 15.8 (1.9)§ |
*P value <0.01 by χ2 test.
†P value <0.05 by χ2 test.
‡P value <0.01 by independent t-test.
§P value <0.05 by independent t-test.
SD, Standard deviation.