Table 5 |
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|
Results from the mediation analyses exploring whether presumed determinants could explain differences in fruit and vegetable intake between the two samples (0 = Pro Children; 1 = Pro Greens) |
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|
fruit intake (n = 1369) |
total effect = 25.16 (7.36; 43.0) |
direct effect model 1 = 13.0 (-4.44; 30.5) |
Direct effect in model 2 = 10.0 (-5.63; 25,7) |
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|
|
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|
path a |
path b (model 1) |
path b (model 2) |
mediated effect (a*b) in model 1 |
mediated effect (a*b) in model 2 |
||||||||||
|
coeff |
SE |
coeff |
SE |
coeff |
SE |
coeff |
95%CI1 |
proportion |
coeff |
95%CI1 |
proportion |
|||
|
knowledge |
0.13 |
0.05 |
25.30 |
7.82 |
26.47 |
7.86 |
3.28 |
1.28 |
6.44 |
13.0% |
3.27 |
1.24 |
5.99 |
14.2% |
|
liking |
0.04 |
0.08 |
35.24 |
4.92 |
-- |
-- |
1.27 |
-2.37 |
5.02 |
5.0% |
-- |
-- |
-- |
-- |
|
active encouragement |
0.07 |
0.07 |
-1.82 |
3.36 |
-- |
-- |
-0.12 |
-1.58 |
0.27 |
-0.5% |
-- |
-- |
-- |
-- |
|
parental demand |
0.17 |
0.06 |
16.98 |
3.98 |
23.47 |
3.52 |
2.89 |
0.71 |
6.48 |
11.5% |
5.42 |
2.64 |
10.86 |
23.6% |
|
parental allowing |
-0.17 |
0.07 |
4.16 |
3.81 |
-- |
-- |
-0.69 |
-2.45 |
0.29 |
-2.8% |
-- |
-- |
-- |
-- |
|
parental facilitation |
0.33 |
0.08 |
7.08 |
3.53 |
12.16 |
3.44 |
2.33 |
0.09 |
5.56 |
9.3% |
4.24 |
1.78 |
8.28 |
18.5% |
|
bringing to school |
0.39 |
0.04 |
5.93 |
3.26 |
-- |
-- |
2.30 |
-0.08 |
5.52 |
9.2% |
-- |
-- |
-- |
-- |
|
school availability |
0.20 |
0.03 |
4.41 |
5.50 |
-- |
-- |
0.89 |
-0.97 |
3.99 |
3.5% |
-- |
-- |
-- |
-- |
|
Total |
12.15 |
5.12 |
20.36 |
48.3% |
12.9 |
8.40 |
20.1 |
56.3% |
||||||
|
|
||||||||||||||
|
Vegetable intake (n = 1356) |
total effect = -12.5 (-21.4; -3.63) |
direct effect model 1 = -12.7 (-21.5; -3.86) |
Direct effect model 2 = -14.0 (-22.7; -5.26) |
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|
|
||||||||||||||
|
path a |
path b (model 1) |
path b (model 2) |
mediated effect (a*b) in model 1 |
mediated effect (a*b) in model 2 |
||||||||||
|
coeff |
SE |
coeff |
SE |
coeff |
SE |
coeff |
95%CI1 |
proportion |
coeff |
95%CI1 |
proportion |
|||
|
knowledge |
-0.03 |
0.02 |
9.65 |
5.39 |
-- |
-- |
-0.31 |
-1.47 |
0.11 |
2.4% |
-- |
-- |
-- |
-- |
|
liking |
-0.06 |
0.06 |
5.19 |
2.23 |
-- |
-- |
-0.31 |
-1.39 |
0.19 |
2.5% |
-- |
-- |
-- |
-- |
|
active encouragement |
-0.02 |
0.07 |
1.25 |
1.85 |
-- |
-- |
-0.03 |
-0.68 |
0.17 |
0.2% |
-- |
-- |
-- |
-- |
|
parental demand |
0.11 |
0.06 |
7.29 |
2.49 |
10.2 |
2.18 |
0.82 |
0.04 |
2.22 |
-6.6% |
1.23 |
0.15 |
2.81 |
-9.7% |
|
parental allowing |
-0.14 |
0.06 |
1.49 |
2.22 |
-- |
-- |
-0.21 |
-1.09 |
0.35 |
1.7% |
-- |
-- |
-- |
-- |
|
parental facilitation |
0.00 |
0.06 |
3.32 |
2.19 |
-- |
-- |
0.00 |
-0.65 |
0.53 |
0.0% |
-- |
-- |
-- |
-- |
|
bringing to school |
0.02 |
0.02 |
17.75 |
6.64 |
-- |
-- |
0.30 |
-0.29 |
1.41 |
-2.4% |
||||
|
school availability |
0.01 |
0.01 |
-19.61 |
21.62 |
-- |
-- |
-0.11 |
-0.60 |
0.09 |
0.9% |
-- |
-- |
-- |
-- |
|
total |
0.16 |
-1.85 |
2.39 |
-1.3% |
1.23 |
0.15 |
2.81 |
-9.7% |
||||||
|
|
||||||||||||||
|
1 bias-corrected 95% confidence intervals retrieved from resampling (n = 5000) Model 1 - model including all potential mediators Model 2 - model including only the significant mediators from model 1 All models are adjusted for sex, age, ethnic background and maternal educational level Bold - significant estimates at the p = 0.05 level |
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|
Fischer et al. International Journal of Behavioral Nutrition and Physical Activity 2011 8:141 doi:10.1186/1479-5868-8-141 |
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