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Table 4 Time and interaction effects for sedentary behaviour outcomes in Belgian boys and girls (adjusted for age)

From: The effect of a cluster randomised control trial on objectively measured sedentary time and parental reports of time spent in sedentary activities in Belgian preschoolers: the ToyBox-study

  Outcomes   Mean difference (follow-up - baseline) Time Time * Condition
β (SE) 95 % CI β (SE) 95 % CI p-value
BOYSa
Accelerometer SB weekday I +0.29 % −0.29 (0.46) −1.19 to 0.60 0.32 (0.78) −1.21 to 1.85 0.68
   C +0.03 %
  SB weekend day I −0.50 % −0.50 (0.71) −1.88 to 0.89 -0.64 (1.21) −3.00 to 1.73 0.60
   C −1.13 %
  Total SB I −0.23 % −0.06 (0.60) −1.22 to 1.11 -0.17 (0.74) −1.61 to 1.27 0.82
   C −0.06 %
  SB school hours I −1.26 % −0.85 (0.74) −2.31 to 0.61 -0.41 (0.92) −2.20 to 1.39 0.66
   C −0.85 %
  SB after school hours I −0.34 % −2.90 (1.10)** −5.05 to -0.75 2.56 (1.53) −0.09 to 5.21 0.06
   C −2.90 %
Questionnaire TV week I −0.22 min/day 1.31 (2.16) −2.92 to 5.55 −1.53 (2.83) −7.92 to 4.86 0.59
   C +1.31 min/day
  TV weekend I +0.29 min/day −0.10 (3.44) −6.85 to 6.64 0.39 (4.50) −8.43 to 9.22 0.93
   C −0.10 min/day
  PC week I +4.24 min/day 6.96 (1.30)*** 4.42 to 9.51 −2.72 (1.70) −7.76 to 2.32 0.11
   C +6.96 min/day
  PC weekend I +8.26 min/day 13.69 (2.15)*** 9.48 to 17.90 −5.42 (2.82) −10.94 to 0.10 0.05
   C +13.69 min/day
  Quiet play week I −1.92 min/day −4.87 (2.81) −10.37 to 0.64 2.95 (3.68) −4.26 to 10.15 0.42
   C −4.87 min/day
  Quiet play weekend I −5.24 min/day −10.31 (6.85) −23.72 to 3.11 5.07 (8.95) −12.48 to 22.61 0.57
   C −10.31 min/day
GIRLSb
Accelerometer SB weekday I −0.42 % 1.98 (1.12) −0.22 to 4.19 −2.41 (1.42) −5.20 to 0.38 0.09
   C +1.98 %
  SB weekend day I −1.32 % −1.10 (1.16) −3.37 to 1.17 -0.21 (1.47) −3.08 to 2.66 0.89
   C −1.10 %
  Total SB I −0.66 % 1.15 (0.98) −0.77 to 3.08 -1.81 (1.25) −4.25 to 0.63 0.15
   C +1.15 %
  SB school hours I −1.10 % 0.56 (0.81) −1.03 to 2.15 -1.66 (1.03) −3.68 to 0.36 0.11
   C +0.56 %
  SB after school hours I −1.74 % 0.30 (1.09) −1.84 to 2.43 -2.03 (1.38) −4.74 to 0.67 0.14
   C +0.30 %      
Questionnaire TV week I +0.52 min/day 0.06 (2.30) −4.45 to 4.56 0.47 (3.00) −5.41 to 6.34 0.88
   C +0.06 min/day
  TV weekend I −5.83 min/day 4.15 (3.81) −3.32 to 11.62 −9.98 (4.98)* −19.74 to -0.23 0.04
   C +4.15 min/day
  PC week I +5.40 min/day 4.56 (1.64)** 1.34 to 7.79 0.84 (2.15) −3.37 to 5.05 0.70
   C +4.56 min/day
  PC weekend I +7.97 min/day 8.33 (2.08)*** 4.26 to 12.39 −0.36 (2.71) −5.68 to 4.95 0.89
   C +8.33 min/day
  Quiet play week I +0.28 min/day −3.96 (3.80) −11.41 to 3.49 4.24 (4.97) −5.49 to 13.97 0.39
   C −3.96 min/day
  Quiet play weekend I −13.59 min/day −3.34 (5.97) −15.04 to 8.37 −10.25 (7.78) −25.51 to 5.00 0.19
   C −3.34 min/day
  1. SB Sedentary Behaviour, TV Television, PC Personal Computer, SE Standard Error, 95 % CI 95 % Confidence Interval, I Intervention group, C Control group
  2. *p < 0.05, **p < 0.01, ***p < 0.001
  3. aaccelerometer: n = 467 (I = 289; C = 178); questionnaire: n = 901 (I = 506; C = 395)
  4. baccelerometer: n = 392 (I = 240; C = 152); questionnaire: n = 814 (I = 455; C = 359)