Table 2

Results of linear regression analyses regarding psychosocial determinants of behavior

Outcome measure

3 months Difference in change (95% CI)

p

12 months Difference in change (95% CI)

p


Attitude (-3, +3)

Fat

0.21 (-0.05; 0.47)

0.12

-0.31 (-0.05; -0.58)

0.02*

Fruit

0.09 (-0.21; 0.39)

0.55

0.02 (-0.27; 0.30)

0.92

Vegetables

0.23 (-0.04; 0.50)

0.10

0.24 (-0.04; 0.51)

0.09

Social support (-3, +3)

Fat

0.34 (-1.04; -0.60)

0.01*

0.26 (-0.92; -0.46)

0.07

Fruit

-0.11 (-0.28; 0.05)

0.18

-0.12 (-0.28; 0.04)

0.13

Vegetables

0.12 (-0.13; 0.38)

0.32

0.07 (-0.20; 0.34)

0.62

Self-efficacy (-3, +3)

Fat

-0.35 (-0.60; -0.09)

0.01*

-0.44 (-0.70; -0.18)

0.01*

Fruit

-0.12 (-0.37; 0.13)

0.35

-0.16 (-0.42; 0.10)

0.23

Vegetables

-0.10 (-0.38; 0.18)

0.46

0.02 (-0.30; 0.33)

0.89

Intention (-3, +3)

Fat

-0.07 (-0.34; 0.20)

0.61

-0.07 (-0.36; 0.21)

0.60

Fruit

-0.09 (-0.34; 0.17)

0.48

0.05 (-0.22; 0.31)

0.73

Vegetables

0.18 (0.06; 0.43)

0.14

0.01 (-0.25; 0.27)

0.93


a Only crude linear regression model presented: adjusted for baseline value of the outcome measure and group allocation (0 = control, 1 = intervention group). Adjusting for predetermined confounders did not change the results. A positive difference (diff.) indicates a change in favor of the intervention group. * p < 0.05 level

Engbers et al. BMC Public Health 2006 6:253   doi:10.1186/1471-2458-6-253

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