Background characteristics |
Age, mean, yearsb | 18.1 (17.9 to 18.3) | 17.8 (17.7 to 18.0) | 0.119 |
Sex, female, % | 71.5 (63.7 to 78.2) | 58.6 (53.6 to 63.5) | 0.004 |
Born in Switzerland, % | 83.0 (77.6 to 87.3) | 82.7 (79.7 to 85.3) | 0.912 |
Residence, rural area (versus urban), % | 54.7 (47.5 to 61.8) | 50.9 (47.4 to 54.5) | 0.328 |
Low socioeconomic status, % | 12.7 (8.9 to 17.9) | 13.1 (11.0 to 15.6) | 0.871 |
Academic track, student (versus apprentice)b, % | 32.8 (25.6 to 40.8) | 28.0 (23.4 to 33.1) | 0.176 |
|
Healthcare access, consulted their GP during the last year, % |
Neverb | 11.2 (7.7 to 16.1) | 22.0 (19.5 to 24.8) | |
1–2 timesb | 47.0 (40.4 to 53.7) | 55.7 (52.2 to 59.2) | <0.001 |
>2 timesb | 41.8 (35.1 to 48.8) | 22.3 (19.9 to 24.9) | |
|
Social support and resources |
Friendship quality scale, mean | 1.6 (1.5 to 1.7) | 1.6 (1.5 to 1.6) | 0.756 |
School context scale, mean | 2.2 (2.2 to 2.3) | 2.2 (2.1 to 2.2) | 0.361 |
Parents quality scale, mean | 1.9 (1.8 to 2.0) | 1.9 (1.9 to 2.0) | 0.901 |
Parents living together, % | 65.4 (58.9 to 71.4) | 74.9 (71.8 to 77.7) | 0.004 |
|
Who they talk to when they have psychological problems, % |
Familyb | 38.4 (32.2 to 44.9) | 26.7 (23.6 to 30.1) | 0.001 |
Other adultsb | 13.8 (10.2 to 18.4) | 5.3 (4.2 to 6.7) | <0.001 |
Friends | 48.6 (42.0 to 55.3) | 51.6 (47.9 to 55.3) | 0.423 |
Boy/girlfriend | 33.8 (27.4 to 40.9) | 28.7 (25.6 to 32.1) | 0.167 |
Education professionalb | 9.2 (6.1 to 13.6) | 1.4 (1.0 to 2.1) | <0.001 |
Nobody | 25.1 (19.6 to 31.5) | 29.2 (26.6 to 31.9) | 0.229 |
|
Mental and physical health |
Depression scale, meanb | 2.7 (2.7 to 2.8) | 2.4 (2.3 to 2.4) | <0.001 |
Poor heath perception, % | 17.8 (13.6 to 23.0) | 10.1 (8.4 to 12.1) | <0.001 |
Chronic condition, % | 16.8 (12.8 to 21.8) | 13.5 (10.3 to 17.3) | 0.234 |
Suicide attempt, last 12 monthsb, % | 19.7 (14.7 to 25.9) | 5.3 (4.0 to 7.1) | <0.001 |
Sexual abuse, ever, % | 22.2 (17.4 to 27.9) | 11.7 (9.9 to 13.9) | <0.001 |
Physical abuse, last 12 months, % | 23.4 (17.3to 31.0) | 14.1 (11.9 to 16.6) | 0.004 |
Aggressive behaviour, last 12 months, % | 18.7 (14.2 to 24.4) | 20.3 (16.9 to 24.3) | 0.621 |
Antisocial behaviour, last 12 months, % | 33.7 (27.8 to 40.1) | 35.0 (30.8 to 39.5) | 0.716 |
|
Substance abuse, last month, % |
Alcohol, >2 drunkenness | 21.3 (16.7 to 26.9) | 21.8 (19.6 to 24.2) | 0.863 |
Cannabis, >2 times | 23.9 (18.7 to 30.0) | 24.8 (21.8 to 28.0) | 0.794 |
Other illegal drugs, at least once | 19.1 (13.4 to 26.3) | 11.0 (8.6 to 13.9) | 0.009 |