Table 5

Univariate analysis: standardized variance estimates of best-fitting models1 for selected eating behaviors
Variable Age Sex Model a2 d2 c2 e2
Does not eat enough 2.5 Both AE 0.89 (0.75, 0.96) - - 0.11 (0.04, 0.25)
9 Both AE 0.56 (0.28, 0.78) - - 0.44 (0.22, 0.72)
Eats too much 2.5 Both AE 0.87 (0.70, 0.95) - - 0.13 (0.05, 0.30)
9 Both DE - 0.55 (0.25, 0.77) - 0.45 (0.23, 0.75)
Eats too fast 2.5 Both AE 0.71 (0.49, 0.87) - 0.29 (0.13, 0.51)
9 Both DE2 - 0.44 (0.18, 0.66) - 0.56 (0.34, 0.82)
Refuses to eat 2.5 Girls CE3 - - 0.82 (0.65, 0.92) 0.18 (0.08, 0.35)
Boys ACE3 0.58 (0.16, 0.85) - 0.22 (0.02, 0.53) 0.21 (0.07, 0.47)
9 Both AE 0.84 (0.63, 0.94) - - 0.16 (0.06, 0.37)
Fussy about food 2.5 Both CE - - 0.70 (0.51, 0.84) 0.30 (0.16, 0.49)
9 Both DE - 0.85 (0.59, 0.96) - 0.15 (0.04, 0.41)
Eats at irregular hours 9 Both CE - - 0.76 (0.58, 0.88) 0.24 (0.12, 0.42)
Eats between meals 2.5 Both ACE 0.24 (0.02, 0.51) - 0.71 (0.46, 0.89) 0.05 (0.01, 0.12)
9 Both AE 0.81 (0.66, 0.91) - - 0.19 (0.09, 0.34)
Eats a different meal 2.5 Both CE - - 1.00 (0.99, 1.00) 0.00 (0.00, 0.01)
9 Both CE - - 0.70 (0.54, 0.81) 0.30 (0.19, 0.46)
Skips breakfast 9 Both CE - - 0.82 (0.65, 0.92) 0.18 (0.08, 0.35)
Fussy about vegetables 9 Both AE 0.73 (0.52, 0.87) - - 0.27 (0.13, 0.48)
Fussy about fruit 9 Both CE - - 0.58 (0.38, 0.73) 0.42 (0.27, 0.62)
Fussy about whole-grain bread 9 Both CE - - 0.84 (0.74, 0.91) 0.16 (0.09, 0.26)

1Based on lowest AIC and nonsignificant likelihood ratio chi-square test of model against saturated model (P > 0.05). 95% CIs in parentheses. Models adjusted for the effects of several ordinal variables (including age, sex, ethnicity, parental education and annual family income) did not provide a better fit than basic models (based on lowest BIC), except for Eats too fast at age 9 (see note 2).

2Model adjusted for children’s sex.

3Sex-limited model.

a2, proportion of variance explained by additive genetic influences; d2, proportion of variance explained by non-additive genetic influences; c2, proportion of variance explained by shared environmental influences; e2, proportion of variance explained by unique environmental influences, including measurement error.

Dubois et al.

Dubois et al. International Journal of Behavioral Nutrition and Physical Activity 2013 10:134   doi:10.1186/1479-5868-10-134

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