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Table 1 Sedentary behaviors, mean values and proportions at baseline, 1 and 2 year follow-up among Norwegian children

From: Stability and change in screen-based sedentary behaviours and associated factors among Norwegian children in the transition between childhood and adolescence

   BL T1 T2
   Mean SD Mean SD Mean SD
TV/DVD use Female 11.04 6.52 12.36 6.62 13.45 6.86
  Male 11.90 6.77 12.94 7.25 13.28 7.37
  Total 11.50 6.66 12.66 6.96 13.36 7.13
Computer/electronic game use Female 7.31* 5.81 8.00* 5.55 9.88# 6.82
  Male 9.80* 6.63 10.19* 6.84 11.01# 7.37
  Total 8.61 6.37 9.15 6.36 10.47 7.14
Total screen time Female 18.44* 10.91 20.34* 9.88 23.31 11.34
  Male 21.68* 11.83 23.14* 12.05 24.30 12.73
  Total 20.15 11.51 21.81 11.15 23.83 12.10
   % % %
Total screen time > 2 hrs/day Female 50.7 67.1 72.7
  Male 65.9 73.9 73.4
  Total 58.7 70.6 73.1
  1. *, #statistically significant difference between boys and girls, *: p < 0.001, #: p < 0.05
  2. N = 419 for girls and 466 for boys and varies slightly between variables
  3. Statistically significant changes between BL and T2 for all variables