| Variables | Sex of the person toward whom the adolescent has a preference | ORa [95% CI] | p adjusted | |
| Same and/or opposite N = 226; not (%) | Opposite N = 1048; not (%) | |||
| Age (years) | ||||
| ≤17 | 75 (33.2) | 261 (24.9) | 2.44 [1.36 - 4.40] | 0.003 |
| Self-gender identity in relation to primary sexual characteristics | ||||
| Opposite | 68 (30.1) | 29 (2.8) | 12.1 [5.13 - 28.29] | <0.001 |
| Two types of gender | 25 (11.0) | 10 (1.0) | 19.8 [5.61 - 69.93] | <0.001 |
| Consent at first sexual intercourse | ||||
| No | 78 (34.5) | 124 (11.8) | 7.09 [3.61 - 13.93] | <0.001 |
| Actions taken during sexual intercourse | ||||
| Kiss | 220 (97.3) | 987 (94.2) |
| 0.436 |
| Caress | 218 (96.5) | 972 (92.7) |
| 0.102 |
| Masturbation | 113 (50.0) | 177 (16.9) |
| 0.265 |
| anal sex | 104 (46.0) | 119 (11.4) |
| 0.881 |
| oral sex | 150 (66.4) | 365 (34.8) |
| 0.083 |
| Fisting | 59 (26.1) | 175 (16.7) |
| 0.081 |
| Types of relationships maintained | ||||
| Free relationships | 109 (48.2) | 327 (31.2) |
| 0.515 |
| Number of sexual partners | ||||
| Two | 41 (18.1) | 121 (11.5) |
| 0.089 |
| History of sexual intercourse with a person of the same sex | ||||
| Yes | 207 (91.6) | 107 (10.2) | 94.17 [43.36 - 183.39] | <0.001 |
| History of simultaneous sexual intercourse with several people | ||||
| Yes | 76 (33.6) | 158 (15.1) |
| 0.646 |