Parent–child concordance, as correlations and regression adjusted for covariates
| Consumption | Pearson’s correlation (n=1227) | Linear regression* (n=1218) | ||
| CC | 95% CI | RC | P value | |
| Grams (g) | 0.14 | 0.07 to 0.20 | 0.14 | <0.001 |
| Energy (kJ) | 0.19 | 0.12 to 0.26 | 0.13 | <0.001 |
| Protein (g) | 0.17 | 0.09 to 0.23 | 0.12 | <0.001 |
| Saturated fat (g) | 0.10 | 0.02 to 0.17 | 0.08 | 0.01 |
| Sodium (mg) | 0.08 | 0.01 to 0.15 | 0.07 | 0.03 |
| Sugar (g) | 0.14 | 0.07 to 0.20 | 0.11 | <0.001 |
| Carbohydrates (g) | 0.22 | 0.15 to 0.28 | 0.17 | <0.001 |
| Total fat (g) | 0.13 | 0.06 to 0.20 | 0.08 | 0.003 |
Note: values were virtually identical in sensitivity analyses including only the children who participated in Food Stop alone (data available on request).
*Adjusted for child and parent age, sex and BMI, Disadvantage Index and box combination.
BMI, body mass index; CC, Pearson’s correlation coefficient; RC, estimated regression coefficient; n, number of biological child-parent pairs with this measure.