# Table 4 Structural Equation Model with Follow-up data with Calorie Intake and Leisure Time Physical Activity as mediators between Depression and Body Fat

Explanatory variable Coefficient ± Standar Error P
Body Fat at follow-up equation, kg
Leisure time physical activity at follow-up, METs/wk −0.215 ± 0.091 0.019
Calorie Intake at follow-up, 100 kcal 0.328 ± 0.142 0.021
Age at follow-up 0.115 ± 0.036 0.001
Height at follow-up 0.520 ± 0.092 < 0.001
Constant 28.399 ± 0.425 < 0.001
Leisure time physical activity at follow-up equation, METs/wk
Body fat at follow-up, kg 1.059 ± 0.456 0.020
Depression score at follow-up, CES-D* −0.191 ± 0.095 0.045
Age at follow-up −0.025 ± 0.071 0.722
Constant −30.038 ± 12.750 0.018
Calorie Intake at follow-up equation, 100 kcal
Body fat at follow-up, kg −0.341 ± 0.183 0.063
Depression score at follow-up, CES-D* 0.188 ± 0.048 < 0.001
Age at follow-up −0.067 ± 0.035 0.057
Constant 9.630 ± 5.285 0.068
Error Covariances
Calorie intake with physical activity −26.882 ± 20.302 0.185
1. n = 456
2. Fit statistics: χ 1=0.05, p = 0.830; RMSEA < 0.001, P(RMSEA < 0.05) =0.903; CFI = 1.0; TLI = 1.0
3. The model satisfied stability with all eigenvalues inside the unit circle
4. Model estimated with the asymptotic distribution free method. All covariance parameters between exogenous variables were also included (available as Additional file 1: Table S2). All variables were centered at the mean except body fat at follow-up
5. *Excludes an item that asked about whether the subject experienced lack of hunger