Table 3.
Median consumption of food groups per day and within and outside school hours, SPEEDY study, Norfolk, UK, 2007 to 2011.
| n = 351 Food Group |
Consumption per day | age 10 years |
age 14 years |
Adjusted mean change in consumption |
|---|---|---|---|---|
| Median (IQR)# | Median (IQR)# | b (SE) a | ||
| Confectionery (g/MJ) | Total daily intake | 2.15 (0.57,4.57) | 1.18 (0,3.56) | −0.63 (0.25)* |
| Daily intake within school hours | 0.00 (0.00,0.00) | 0.00 (0.00,1.09) | 0.49 (0.56) | |
| Daily intake outside school hoursb | 2.15 (0.00,4.89)** | 0.86 (0.00,3.70) | −0.85 (0.32)** | |
| Savoury snacks (g/MJ) | Total daily intake | 1.56 (0.00,2.91) | 1.72 (0.00,3.09) | 0.26 (0.14) |
| Daily intake within school hours | 0.00 (0.00,6.57) | 0.00 (0.00,7.00) | 0.44 (0.35) | |
| Daily intake outside school hoursb | 0.75 (0.00,2.06)*** | 0.81 (0.00,1.97)*** | 0.19 (0.14) | |
| SSBs (g/MJ) | Total daily intake | 9.02 (0.00,22.58) | 11.17 (0.00,32.42) | 4.66 (1.87)* |
| Daily intake within school hours | 0.00 (0.00,0.00) | 0.00 (0.00,0.00) | 4.19 (2.29) | |
| Daily intake outside school hoursb | 8.76 (0.00,22.93)*** | 12.4 (0.00,34.73)*** | 4.42 (2.13)* | |
| Fruits (g/MJ) | Total daily intake | 11.76 (5.52,22.46) | 8.35 (0.79,18.03) | −3.13 (1.14)** |
| Daily intake within school hours | 15.11 (0.00,35.81) | 0.00 (0.00,29.81) | −1.83 (2.64) | |
| Daily intake outside school hoursb | 8.85 (2.18,19.3)*** | 4.63 (0.00,13.95)*** | −2.8 (1.22)* | |
| Vegetables (g/MJ) | Total daily intake | 7.21 (3.10,13.32) | 6.39 (2.25,11.45) | −1.55 (0.48)** |
| Daily intake within school hours | 0.00 (0.00,13.04) | 0.00 (0.00,2.11) | −5.42 (1.5)*** | |
| Daily intake outside school hoursb | 7.16 (3.33,13.45) | 7.08 (2.56,13.14)*** | −0.59 (0.57) | |
| Fries (g/MJ) | Total daily intake | 3.41 (0.00,6.60) | 3.98 (0.00,9.21) | 1.31 (0.39)** |
| Daily intake within school hours | 0.00 (0.00,0.00) | 0.00 (0.00,0.00) | −1.73 (1.09) | |
| Daily intake outside school hoursb | 2.93 (0.00,7.38) | 4.76 (0.00,11.32)*** | 2.19 (0.47)*** |
Abbreviations: IQR = inter-quartile range, b = beta coefficient, SE = standard error, MJ = megajoule total energy intake.
#Paired t-test compares mean consumption (per MJ energy intake) at school with non-school, *p < 0.05, **p < 0.01, ***p < 0.001.
a
Adjusted for gender, age, parental education, mis-reporting and with school attended included as a level 2 variable.
b
Non school-time consumption includes weekdays while not at school and weekend days.