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Table 5 Effects on determinants for PA and SB, by weight status and parental education level

From: Mid-way and post-intervention effects on potential determinants of physical activity and sedentary behavior, results of the HEIA study - a multi-component school-based randomized trial

   Control Intervention   Control Intervention  
   Baseline Crude Mean SD Baseline Crude Mean SD p1 Adjusted
Mean
95% CI Adjusted
Mean
95% CI p2
Mid-way      
Self-efficacy Normal weight 3.89 (0.74) 3.87(0.78) .63 3.96 (3.92, 4.01) 4.06 (4.00, 4.12) .01
  Overweight 3.74 (0.85) 3.69 (0.82) .70 3.80 (3.70, 3.91) 3.63 (3.46, 3.80) .09
Post-intervention      
Enjoyment Normal weight 4.14 (0.75) 4.10 (0.77) .45 3.96 (3.90, 4.02) 3.94 (3.86, 4.02) .67
  Overweight 4.08 (0.84) 3.99 (0.71) .49 3.92 (3.78, 4.06) 3.58 (3.37, 3.79) .009
Social support from parents Low PE (≤12 years) 2.32 (0.80) 2.50 (0.93) .08 2.30 (2.21, 2.40) 2.28 (2.15, 2.42) .81
  Medium PE (13 to 16 years) 2.44 (0.80) 2.35 (0.67) .20 2.38 (2.30, 2.46) 2.21 (2.11, 2.32) .01
  High PE (>16 years) 2.35 (0.69) 2.31 (0.68) .52 2.20 (2.13, 2.28) 2.24 (2.15, 2.34) .53
Social support from teachers Low PE (≤ 12 years) 1.76 (0.76) 1.72 (0.91) .70 1.49 (1.41, 1.57) 1.72 (1.60, 1.83) .001
  Medium PE (13 to 16 years) 1.73 (0.73) 1.66 (0.70) .28 1.51 (1.44, 1.58) 1.49 (1.40, 1.58) .66
  High PE (>16 years) 1.57 (0.61) 1.87 (0.86) <.001 1.40 (1.33, 1.47) 1.60 (1.51, 1.69) .001
  1. PA = Physical activity, SB = Sedentary behavior, SD = Standard deviation, CI = Confidence interval, PE = parental education level.
  2. One-way Ancova analyses,
  3. n for Control vs. Intervention in analyses for subgroups: normal weight (737–752 vs. 404–417), overweight (121–125 vs. 51–53), low PE (261–266 vs 120), medium PE (302–311 vs 178), high PE (285–287 vs.171).
  4. Adjusted for baseline values.
  5. p1 = Independent t-test, p2 = One way Ancova.
  6. Sample: Norwegian adolescents 11-13 year-olds from the HEIA study.