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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

From: Screen-based behaviour in school-aged children with long-term illness

   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)
  1. *p < 0.05 **p < 0.01
  2. N = number of children with and without long-term illness, asthma and learning disabilities in each screen-based behaviour and excessive use of internet