Table 2.
Prevalence and odds ratios (95 % CI) for excessive screen-based behaviour among adolescents with and without long-term illness, asthma and learning disabilities
| Watching TV (≥2 h) | Playing PC games (≥2 h) | Computer work (≥2 h) | Excessive use of internet (≥1 symptom) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| N (%) | OR (95 % CI) | N (%) | OR (95 % CI) | N (%) | OR (95 % CI) | N (%) | OR (95 % CI) | ||
| Long-term illness | Yes | 369 (72.4) | 1.08 (0.87–1.35) | 256 (50.5) | 1.12 (0.91–1.38) | 306 (60.4) | 0.96 (0.78–1.17) | 190 (38.9) | 1.23 (0.99–1.51) |
| No | 1,346 (70.8) | 1 (ref) | 936 (49.0) | 1 (ref) | 1,168 (61.3) | 1 (ref) | 615 (34.1) | 1 (ref) | |
| Asthma | Yes | 104 (74.8) | 1.23 (0.83–1.82) | 81 (57.4) | *1.59 (1.11–2.30) | 92 (65.7) | 1.23 (0.86–1.77) | 48 (35.8) | 1.02 (0.71–1.47) |
| No | 1,600 (70.9) | 1 (ref) | 1,101 (48.7) | 1 (ref) | 1,370 (60.7) | 1 (ref) | 86 (64.2) | 1 (ref) | |
| Learning disability | Yes | 90 (67.2) | 0.82 (0.56–1.19) | 71 (52.6) | 0.95 (0.66–1.37) | 85 (63.4) | 1.13 (0.79–1.63) | 60 (46.9) | **1.71 (1.19–2.45) |
| No | 1,607 (71.2) | 1 (ref) | 1,110 (49.1) | 1 (ref) | 1,373 (60.9) | 1 (ref) | 740 (34.6) | 1 (ref) | |
*p < 0.05 **p < 0.01
N = number of children with and without long-term illness, asthma and learning disabilities in each screen-based behaviour and excessive use of internet