. Author manuscript; available in PMC: 2013 Apr 5.

Published in final edited form as: Ann Behav Med. 2011 Jun;41(3):353–362. doi: 10.1007/s12160-010-9243-z

Table 3.

Parameter estimates for the effect of the positive family meal practice index as a mediator of family stressors on child BMI z scores, stratified by parental weight status

	C	SE C	C′	SE C′	A	SE A	B	SE B	AB	SE AB	z	% Med
Total sample (n=368)
Depression^a	0.046^*	0.011	0.034^*	0.011	−0.063^*	0.027	−0.063^*	0.025	0.004	0.002	1.66	7.5
Stress^a	0.039^*	0.017	0.023	0.016	−0.08	0.042	−0.065^*	0.025	0.005	0.003	1.55	11.9
Time demands^a	0.033^*	0.014	0.018	0.014	−0.125^*	0.029	−0.061^*	0.025	0.008	0.004	2.13^*	18.6
Lack of family rules^a	0.029	0.027	0	0.026	−0.253^*	0.054	−0.069^*	0.024	0.017	0.007	2.4^*	37.8
Difficulty enforcing rules^a	0.039^*	0.018	0.019	0.018	−0.199^*	0.043	−0.061^*	0.026	0.012	0.006	2.13^*	23.9
Healthy weight parents (n=151)
Depression	0.044^*	0.017	0.037^*	0.017	−0.076	0.052	−0.048	0.036	0.004	0.004	0.99	7.6
Stress	0.027	0.027	0.023	0.025	−0.110	0.073	−0.055	0.040	0.006	0.006	1.02	18.3
Time demands	0.026	0.020	0.022	0.019	−0.077	0.053	−0.054	0.036	0.004	0.004	1.04	13.8
Lack of family rules	0.007	0.034	−0.001	0.034	−0.138^*	0.069	−0.059	0.037	0.008	0.007	1.25	53.8
Difficulty enforcing rules	0.048^*	0.024	0.039	0.025	−0.212^*	0.056	−0.044	0.037	0.009	0.008	1.13	16.3
Overweight parents (n=217)
Depression	0.048^*	0.014	0.043^*	0.013	−0.066^*	0.030	−0.087^*	0.030	0.006	0.003	1.75	10.7
Stress	0.045^*	0.022	0.024	0.021	−0.076	0.049	−0.080^*	0.028	0.005	0.004	1.11	9.5
Time demands	0.037^*	0.017	0.024	0.018	−0.151^*	0.033	−0.086^*	0.028	0.013	0.005	2.55^*	26.0
Lack of family rules	0.043	0.033	0.012	0.034	−0.326^*	0.069	−0.096^*	0.029	0.313	0.067	4.68^*	42.1
Difficulty enforcing rules	0.037	0.023	0.019	0.024	−0.197^*	0.056	−0.093^*	0.030	0.018	0.008	2.33^*	33.1

Adjusted for student age, student sex, parental race, free and reduced cost lunch and parental college education (Y/N). Positive family meal practices is an index comprised of 11 behaviors such as serving milk at dinner, not watching TV during dinner and serving fruits and vegetables. C main effect of family stress variable on child BMI z score, C′ effect of family stress variable on child BMI z score adjusting for mediator, A effect of family stress variable on positive family meal practices, B effect of positive family meal practices on child BMI z score adjusting for main effect; % mediation=[AB/((AB)+C)] *100

SE standard error

Statistically significant interaction with parent weight status in crude models, p<0.05

p<0.05