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Table 6 Influence of intervention dose received on the determinant for PA and SB

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

 

Intervention dose received

Crude Mean (SD) Baseline

p1

Adjusted Mean

95% CI

p2

Mid-way (low n = 219, high n = 273)*

      

Enjoyment

Low

4.03 (0.82)

.12

4.03

(3.94, 4.12)

.001

 

High

4.13 (0.72)

 

4.22

(4.15, 4.30)

 

Self-efficacy

Low

3.72 (0.85)

.001

3.91

(3.83, 4.00)

.005

 

High

3.97 (0.72)

 

4.07

(4.00, 4.15)

 

Perceived social support from parents

Low

2.30 (0.75)

.65

2.39

(2.30, 2.48)

.27

 

High

2.43 (0.77)

 

2.46

(2.38, 2.54)

 

Perceived social support from teachers

Low

1.66 (0.71)

.02

1.62

(1.53, 1.71)

<.001

 

High

1.82 (0.89)

 

1.86

(1.78, 1.94)

 

Post-intervention (low n = 347, high n = 156)*

      

Enjoyment

Low

4.03 (0.79)

.01

3.82

(3.74, 3.91)

.01

 

High

4.22 (0.67)

 

4.02

(3.89, 4.15)

 

Self-efficacy

Low

3.79 (0.82)

.001

3.72

(3.63, 3.80)

.07

 

High

4.01 (0.66)

 

3.86

(3.73, 3.99)

 

Social support from parents

Low

2.33 (0.77)

.05

2.21

(2.13, 2.29)

.06

 

High

2.48 (0.74)

 

2.34

(2.23, 2.46)

.

Social support from teachers

Low

1.72 (0.80)

.09

1.57

(1.49, 1.64)

.07

 

High

1.86 (0.89)

 

1.69

(1.58, 1.80)

 

Social support from friends

Low

2.92 (1.05)

.18

2.75

(2.66, 2.85)

.02

 

High

3.05 (0.98)

 

2.96

(2.82, 3.11)

 

Perceived environmental opportunities

Low

4.20 (0.76)

.002

4.15

(4.06, 4.24)

.02

 

High

4.43 (0.71)

 

4.35

(4.22, 4.48)

 

Parental regulation TV-viewing

Low

3.68 (0.92)

.88

3.33

(3.23, 3.43)

.07

 

High

3.69 (0.92)

 

3.50

(3.35, 3.66)

 

Parental regulation computer/game-use

Low

3.51 (0.99)

.5

3.27

(3.15, 3.38)

.41

 

High

3.58 (1.04)

 

3.35

(3.19, 3.52)

 

Social inclusion at school

Low

4.35 (0.63)

.08

4.26

(4.18, 4.34)

.009

 

High

4.46 (0.56)

 

4.45

(4.33, 4.57)

 
  1. PA = Physical activity, SB = Sedentary behavior, SD = Standard deviation, CI = Confidence interval.
  2. Only participants within the intervention schools included in the analyses.
  3. *n varies slightly for the different outcomes due to the incomplete data.
  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.