Table 4.
Percentage of total beverage consumption frequency attributable to water | Percentage of total beverage consumption frequency attributable to SSB† | |||||
---|---|---|---|---|---|---|
β | 95 % CI | P | β | 95 % CI | P | |
Total knowledge score | ||||||
Unadjusted | 0·56 | 0·39, 0·74 | <0·0001*** | −0·56 | −0·72, −0·40 | <0·0001*** |
Model 1‡ | 0·51 | 0·32, 0·70 | <0·0001*** | −0·50 | −0·67, −0·34 | <0·0001*** |
Model 2§ | 0·37 | 0·19, 0·56 | <0·0001*** | −0·37 | −0·52, −0·21 | <0·0001*** |
Model 3‖ | 0·34 | 0·16, 0·52 | 0·0002*** | −0·33 | −0·49, −0·18 | <0·0001*** |
Water knowledge score | ||||||
Unadjusted | 1·90 | 1·17, 2·62 | <0·0001*** | −2·12 | −2·75, −1·49 | <0·0001*** |
Model 1‡ | 1·64 | 0·87, 2·41 | <0·0001*** | −1·88 | −2·55, −1·22 | <0·0001*** |
Model 2§ | 1·11 | 0·37, 1·85 | 0·0031** | −1·36 | −1·99, −0·74 | <0·0001*** |
Model 3‖ | 1·12 | 0·39, 1·85 | 0·0026** | −1·41 | −2·03, −0·79 | <0·0001*** |
Nutrition knowledge score | ||||||
Unadjusted | 0·56 | 0·35, 0·76 | <0·0001*** | −0·53 | −0·71, −0·36 | <0·0001*** |
Model 1‡ | 0·49 | 0·28, 0·70 | <0·0001*** | −0·46 | −0·64, −0·28 | <0·0001*** |
Model 2§ | 0·36 | 0·16, 0·56 | 0·0004*** | −0·33 | −0·51, −0·16 | 0·0001*** |
Model 3‖ | 0·32 | 0·12, 0·52 | 0·0015** | −0·29 | −0·46, −0·12 | 0·0008*** |
**P < 0·01, ***P < 0·001.
SSB include fruit-flavoured drinks, regular pop, energy drinks and chocolate milk.
Model 1 adjusted for the sociodemographic characteristics sex, age, ethnicity, household income level, maximum household education, child living arrangement and parental work status.
Model 2 added daily servings of fruits and vegetables and weekly junk food consumption frequency.
Model 3 added participation in school milk programme, permission to leave school grounds at lunchtime and frequency of refillable water bottle use.