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

Table 3.

Intervention effect on days with 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 16·84 <0·001 47 u 00j 0·13 <0·001
For period slope
Intercept γ 100 0·79 0·11 7·21 <0·001 47 u 10j 0·47 <0·001
Model II
Intercept γ 000 1·25 0·09 13·63 <0·001 45 u 00j 0·09 <0·001
Thrice weekly intervention γ 001 −0·41 0·13 −3·06 0·004 45
Twice weekly intervention γ 002 −0·35 0·13 −2·70 0·01 45
For period slope
Intercept γ 100 0·03 0·11 0·26 0·799 45 u 10j 0·14 <0·001
Thrice weekly intervention γ 101 1·07 0·17 6·27 <0·001 45
Twice weekly intervention γ 102 1·30 0·17 7·68 <0·001 45
Model III
Intercept γ 000 1·21 0·08 14·65 <0·001 44 u 00j 0·08 <0·001
Thrice weekly intervention γ 001 −0·30 0·12 −2·43 0·019 44
Twice weekly intervention γ 002 −0·32 0·11 −2·82 0·007 44
Grade γ 003 −0·37 0·10 −3·92 <0·001 44
Lunch at home γ 010 −0·31 0·06 −5·26 <0·001 513
Gender γ 020 0·31 0·06 5·57 <0·001 513
Low SES γ 030 −0·18 0·08 −2·18 0·03 513
Middle SES γ 040 −0·19 0·07 −2·75 0·006 513
For period slope
Intercept γ 100 0·03 0·11 0·25 0·805 44 u 10j 0·13 <0·001
Thrice weekly intervention γ 101 1·09 0·17 6·32 <0·001 44
Twice weekly intervention γ 102 1·31 0·17 7·95 <0·001 44
Grade γ 103 0·19 0·14 1·36 0·181 44
Lunch at home γ 110 0·11 0·09 1·16 0·248 513
Gender γ 120 0·15 0·11 1·37 0·177 47 u 12j 0·21 <0·001
Low SES γ 130 −0·14 0·12 −1·11 0·268 513
Middle SES γ 140 −0·05 0·10 −0·45 0·652 513

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

The variance of the level-1 residual (e tij ) was estimated to be 0·94 in all models. The variance of the level-2 residual of intercepts (r 0ij ) was 0·24 in Models I and II and 0·19 in Model III. The variance of the level-2 residual of slopes for period (r 1ij ) was 0·36 in Models I and II and 0·30 in Model III.