Table 2.
Standard multiple regression of portion size variables on child BMI percentile
| Variables | Mean (SD) | B | β | 95% CI | sr 2 (unique) | Model fit |
|---|---|---|---|---|---|---|
| Model 1 | ||||||
| Child IP (kcal) | 470 (167) | 0.005 | 0.03 | (−.016, .027) | 0.001 | R 2 = .24 |
| Parent IP (kcal) | 495 (137) | −0.023 | −0.12 | (−.049, .002) | 0.013 | Adjusted R 2 = .22 |
| Parent IP est. (kcal) | 395 (124) | 0.074 *** | 0.33 | (.046, .103) | 0.1 | R = .49 *** |
| Parent BMI | 27.9 (6.2) | 1.170 *** | 0.26 | (.594, 1.745) | 0.064 | Intercept =14.962 |
| Liking | 55.0 (17.9) | 0.076 | 0.05 | (−.118, .271) | 0.002 | |
| Model 2 | ||||||
| Child MP (kcal) | 615 (196) | −0.009 | −0.07 | (−.028, .009) | 0.003 | R 2 = .19 |
| Parent MP est. (kcal) | 508 (140) | 0.054 *** | 0.27 | (.028, .080) | 0.07 | Adjusted R 2 = .17 |
| Parent BMI | 27.9 (6.2) | 1.304 *** | 0.29 | (.725, 1.884) | 0.08 | R = .43 *** |
| Liking | 55.0 (17.9) | 0.096 | 0.06 | (−.103, .295) | 0.004 | Intercept = 8.56 |
Notes. IP, ideal portion size; MP, maximum portion size; parent IP est., parent estimates of their child's ideal portion size; parent MP est., parent estimates of their child's maximum portion size.
***
p < .001.