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. 2018 Jan 26;21(7):1375–1387. doi: 10.1017/S1368980017003949

Table 4.

Intervention effect on days without fruit and vegetable (F&V) deliveries of the European School Fruit Scheme in North Rhine-Westphalia, Germany, on the F&V intake of third and fourth grade children (n 664) from twelve primary schools, beginning to the end of the 2012/13 school year

Fixed part Random part
Coef. Est. se t P value df Coef. Var. P value
Model I
Intercept γ 000 1·00 0·06 16·82 <0·001 47 u 00j 0·13 <0·001
For period slope
Intercept γ 100 0·41 0·08 5·22 <0·001 47 u 10j 0·21 <0·001
Model II
Intercept γ 000 1·25 0·09 13·61 <0·001 45 u 00j 0·09 <0·001
Thrice weekly intervention γ 001 −0·40 0·13 −3·03 0·004 45
Twice weekly intervention γ 002 −0·34 0·13 −2·68 0·01 45
For period slope
Intercept γ 100 0·03 0·11 0·29 0·777 45 u 10j 0·11 <0·001
Thrice weekly intervention γ 101 0·75 0·17 4·53 <0·001 45
Twice weekly intervention γ 102 0·48 0·15 3·16 0·003 45
Model III
Intercept γ 000 1·20 0·08 14·78 <0·001 44 u 00j 0·08 <0·001
Thrice weekly intervention γ 001 −0·29 0·12 −2·42 0·02 44
Twice weekly intervention γ 002 −0·31 0·11 −2·79 0·008 44
Grade γ 003 −0·36 0·09 −3·84 <0·001 44
Lunch at home γ 010 −0·31 0·06 −5·25 <0·001 513
Gender γ 020 0·32 0·06 5·59 <0·001 513
Low SES γ 030 −0·18 0·08 −2·25 0·025 513
Middle SES γ 040 −0·19 0·07 −2·81 0·005 513
For period slope
Intercept γ 100 0·03 0·10 0·32 0·754 44 u 10j 0·10 <0·001
Thrice weekly intervention γ 101 0·76 0·16 4·70 <0·001 44
Twice weekly intervention γ 102 0·50 0·14 3·60 <0·001 44
Grade γ 103 0·23 0·12 1·90 0·064 44
Lunch at home γ 110 0·14 0·09 1·57 0·117 513
Gender γ 120 0·18 0·09 1·90 0·063 47 u 12j 0·10 0·046
Low SES γ 130 −0·09 0·12 −0·71 0·478 513
Middle SES γ 140 0·07 0·10 0·70 0·482 513

Coef., coefficient; Est., estimate; Var., variance components; SES, socio-economic status.

The variance of the level-1 residual (e tij ) was estimated to be 0·89 in Model I and Model II and 0·90 in Model III. The variance of the level-2 residual of intercepts (r 0ij ) was 0·26 in Models I and II and 0·20 in Model III. The variance of the level-2 residual of slopes for period (r 1ij ) was 0·34 in Models I and II and 0·30 in Model III.