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Table 3 Baseline, mid-way and post-intervention characteristics for PA and SB determinants in the control and intervention group

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

  Baseline   Mid-way Post-intervention
  Control (n = 908) Intervention (n = 510)   Control (n = 885) Intervention (n = 499) Control (n = 908) Intervention (n = 510)
  Mean SD Mean SD p Mean SD Mean SD Mean SD Mean SD
Enjoyment 4.13 (0.76) 4.09 (0.77) 0.35 4.08 (0.75) 4.13 (0.78) 3.96 (0.83) 3.88 (0.90)
Self-efficacy 3.86 (0.76) 3.86 (0.79) 0.80 3.93 (0.75) 3.99 (0.78) 3.86 (0.82) 3.77 (0.89)
Social support from parents 2.37 (0.76) 2.38 (0.76) 0.83 2.45 (0.81) 2.42 (0.77) 2.31 (0.81) 2.24 (0.78)
Social support from teachers 1.68 (0.70) 1.76 (0.83) 0.07 1.61 (0.65) 1.75 (0.77) 1.47 (0.62) 1.61 (0.73)
Social support from friends 2.96 (1.00) 2.96 (1.04) 0.95      2.80 (0.99) 2.82 (0.97)
Environmental opportunities for PA 4.26 (0.77) 4.27 (0.76) 0.79      4.11 (0.89) 4.20 (0.90)
Parental regulation TV-viewing 3.64 (0.96) 3.68 (0.93) 0.43      3.41 (1.07) 3.38 (1.05)
Parental regulation computer/game-use 3.55 (0.99) 3.53 (1.01) 0.78      3.28 (1.11) 3.28 (1.10)
Social inclusion at school 4.43 (0.61) 4.39 (0.62) 0.15      4.36 (0.69) 4.32 0.77
  1. PA = Physical activity, SB = Sedentary behavior, SD = Standard deviation.
  2. n varies slightly for the different variables.
  3. p-values for independent t-test between control and intervention group at baseline.
  4. Range 1–5 (lowest to highest with a neutral midpoint) for all variables.
  5. Sample: Norwegian adolescents 11-13 year-olds from the HEIA study.