Variable | Model | Estimate | a2 | c2 | e2 |
---|
Does not eat enough | AE (drop e21) |
Var
2.5y
| 0.91 (0.79, 0.97) | - | 0.09 (0.03, 0.21) |
| |
Var
9y
| 0.62 (0.35, 0.82) | - | 0.38 (0.18, 0.65) |
| |
Cov
2.5-9y
| 1.00 (1.00, 1.00) | - | - |
Eats too much | AE (drop e21) |
Var
2.5y
| 0.87 (0.71, 0.95) | - | 0.13 (0.05, 0.29) |
| |
Var
9y
| 0.52 (0.25, 0.74) | - | 0.48 (0.26, 0.75) |
| |
Cov
2.5-9y
| 1.00 (1.00, 1.00) | - | - |
Eats too fast | AE (drop e21, sex2.5) |
Var
2.5y
| 0.71 (0.48, 0.87) | - | 0.29 (0.13, 0.52) |
| |
Var
9y
| 0.38 (0.14, 0.60) | - | 0.62 (0.40, 0.86) |
| |
Cov
2.5-9y
| 1.00 (1.00, 1.00) | - | - |
Eats between meals | ACE (drop c21, e21) |
Var
2.5y
| 0.26 (0.06, 0.52) | 0.69 (0.44, 0.86) | 0.04 (0.01, 0.12) |
| |
Var
9y
| 0.72 (0.22, 0.91) | 0.09 (0.00, 0.49) | 0.20 (0.09, 0.37) |
| |
Cov
2.5-9y
| 1.00 (1.00, 1.00) | - | - |
Eats a different meal | CE (drop e21) |
Var
2.5y
| - | 1.00 (0.99, 1.00) | 0.00 (0.00, 0.01) |
| |
Var
9y
| - | 0.68 (0.56, 0.80) | 0.32 (0.20, 0.46) |
| |
Cov
2.5-9y
| - | 1.00 (1.00, 1.00) | - |
- 1Based on lowest AIC and nonsignificant likelihood ratio chi-square test of model against comparison model (P > 0.05) — See Additional files 5 and 6. 95% CIs in parentheses.
- 2All models refer to basic models (without adjustment for age or sex) except for Eats too fast trait for which a bivariate ACE model adjusted for children’s sex provided a better fit (lowest BIC).
- c21, path coefficient of shared environmental influences present at age 2.5 on behavior trait at age 9; e21, path coefficient of unique environmental influences present at age 2.5 on behavior trait at age 9; sex2.5y, effect of sex at age 2.5; Var2.5y, proportion of variance explained by additive genetic influences (a2), shared environmental influences (c2) and unique environmental influences (e2) at age 2.5; Var9y, proportion of variance explained by a2, c2 and e2 at age 9; Cov2.5-9y, proportion of covariance explained by a2, c2 and e2 between 2.5 and 9 years.