Table 1 Study characteristics by gender
Boys (N = 318) | Girls (N = 387) | Chi-square P | |
|---|---|---|---|
n (%) | n (%) | ||
Self-rated health | |||
Very bad | 2 (0.6) | 5 (1.3) | < 0.01 |
Rather bad | 6 (1.9) | 13 (3.4) | |
Neither good, nor bad | 21 (6.6) | 31 (8.1) | |
Rather good | 146 (45.9) | 215 (56.1) | |
Very good | 143 (45.0) | 119 (31.1) | |
Subjective social status in school | |||
1 (lowest) | 2 (0.7) | 2 (0.6) | 0.02 |
2 | – | 3 (0.8) | |
3 | 2 (0.7) | 9 (2.5) | |
4 | 11 (4.0) | 13 (3.7) | |
5 | 21 (7.6) | 22 (6.2) | |
6 | 52 (18.8) | 68 (19.2) | |
7 | 49 (17.7) | 96 (27.1) | |
8 | 75 (27.1) | 87 (24.6) | |
9 | 45 (16.2) | 43 (12.1) | |
10 (highest) | 20 (7.2) | 11 (3.1) | |
Country of birth | |||
Born in Sweden | 301 (94.7) | 363 (94.3) | 0.83 |
Born outside Sweden | 17 (5.3) | 22 (5.7) | |
Socioeconomic status (parental education) | |||
High | 177 (55.8) | 202 (52.9) | 0.44 |
Low | 140 (44.2) | 180 (47.1) | |
Mood in family | |||
Good | 262 (82.9) | 301 (79.2) | 0.22 |
Not good | 54 (17.1) | 79 (20.8) | |
Self-esteem | |||
High | 228 (72.2) | 190 (49.6) | < 0.01 |
Low | 88 (27.8) | 193 (50.4) | |
Body mass index | |||
Underweight | 26 (8.4) | 29 (8.3) | 0.36 |
Normal weight | 224 (72.7) | 270 (77.4) | |
Overweight | 50 (16.2) | 40 (11.5) | |
Obesity | 8 (2.6) | 10 (2.9) | |
Physical exercise | |||
High | 187 (59.9) | 239 (63.2) | 0.38 |
Low | 125 (40.1) | 139 (36.8) | |
Smoking | |||
Non-smokers | 250 (79.4) | 274 (71.5) | 0.02 |
Smokers | 65 (20.6) | 109 (28.5) | |