Table 3 Associations between health behaviours and incidence of allergy in adolescents (n = 1794 to 2016)
Odds ratio (95% confidence interval) | ||||
|---|---|---|---|---|
n | Unadjusted | Sex and age adjusted | Sex, age and BMI Z-score adjusted | |
Physically active | ||||
< 5 days/week | 1645 | 1 (Reference) | 1 (Reference) | 1 (Reference) |
≥ 5 days/week | 325 | 1.001 (0.781-1.282) | 1.142 (0.886-1.472) | 1.124 (0.868-1.455) |
P | 0.996 | 0.304 | 0.375 | |
Television viewing | ||||
≥ 2 hours/day | 552 | 1 (Reference) | 1 (Reference) | 1 (Reference) |
< 2 hours/day | 1266 | 0.885 (0.721-1.788) | 0.906 (0.735-1.116) | 0.914 (0.739-1.130) |
P | 0.247 | 0.353 | 0.407 | |
School homework | ||||
< 1 hour/day | 658 | 1 (Reference) | 1 (Reference) | 1 (Reference) |
≥ 1 hour/day | 1176 | 0.942 (0.773-1.147) | 0.840 (0.686-1.029) | 0.849 (0.690-1.043) |
P | 0.549 | 0.091 | 0.119 | |
Computer use and video games | ||||
> 1 hour/day | 374 | 1 (Reference) | 1 (Reference) | 1 (Reference) |
≤ 1 hour/day | 1420 | 1.268 (0.995-1.616) | 1.035 (0.803-1.334) | 1.025 (0.793-1.326) |
P | 0.055 | 0.790 | 0.849 | |
Sleep duration | ||||
< 8 hours/day | 622 | 1 (Reference) | 1 (Reference) | 1 (Reference) |
≥ 8 hours/day | 1254 | 0.743 (0.610-0.906) | 0.771 (0.628-0.947) | 0.786 (0.638-0.968) |
P | 0.003 | 0.013 | 0.024 | |
Breakfast | ||||
No | 251 | 1 (Reference) | 1 (Reference) | 1 (Reference) |
Yes | 1722 | 1.184 (0.903-1.554) | 1.025 (0.777-1.354) | 0.997 (0.752-1.321) |
P | 0.222 | 0.860 | 0.981 | |
Fruit consumption | ||||
<2 servings/day | 1567 | 1 (Reference) | 1 (Reference) | 1 (Reference) |
≥2 servings/day | 449 | 1.019 (0.820-1.267) | 0.984 (0.789-1.228) | 0.976 (0.780-1.223) |
P | 0.865 | 0.889 | 0.839 | |