Physical activity and calorie intake mediate the relationship from depression to body fat mass among female Mexican health workers

Table 5 Structural Equation Model with Calorie Intake and Physical Activity as mediators between Depression and Body Fat and with baseline covariates

Explanatory variable	Coefficient ± Standard Error	P
Body Fat at follow-up Equation, kg
Leisure time physical activity at follow-up, METs/wk	−0.004 ± 0.011	0.700
Calorie Intake at follow-up 100 kcal	0.039 ± 0.023	0.099
Body fat at baseline, kg	0.931 ± 0.030	< 0.001
Age at follow-up	−0.102 ± 0.017	< 0.001
Constant	28.459 ± 0.196	< 0.001
Leisure time physical activity at follow-up equation, METs/wk
Depression score at follow-up, CESD	−0.152 ± 0.074	0.041
Leisure time physical activity at baseline, METs/wk	0.262 ± 0.058	0.000
Body fat at baseline, kg	0.020 ± 0.098	0.839
Age at follow-up	0.030 ± 0.058	0.608
Constant	−0.261 ± 0.824	0.752
Calorie Intake at follow-up, 100 kcal
Depression score at follow-up, CESD	0.151 ± 0.044	0.001
Calorie Intake at baseline, 100 kcal	0.316 ± 0.065	0.000
Body fat at baseline, kg	−0.027 ± 0.056	0.636
Age at follow-up	−0.042 ± 0.030	0.162
Constant	0.130 ± 0.374	0.729
Depression score at follow-up, CES-D*
Leisure time physical activity at baseline, METs/wk	−0.020 ± 0.020	0.324
Calorie Intake at baseline, 100 kcal	0.078 ± 0.042	0.062
Depression score at baseline, CESD	0.455 ± 0.046	0.000
Body fat at baseline, kg	0.076 ± 0.050	0.126
Age at follow-up	−0.059 ± 0.033	0.072
Constant	0.030 ± 0.398	0.940
Error Covariances
Calorie intake with physical activity	−2.371 ± 5.362	0.658

n = 456
Fit statistics: χ ₈=7.97, p = 0.437; RMSE < 0.001, P(RMSEA < 0.05) =0.921; CFI = 1.0; TLI = 1.0
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
*Excludes an item that asked about whether the subject experienced lack of hunger

ISSN: 1479-5868