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Table 2 Cross-lagged Structural Equations Model with Depression Score, Body Fat, Calorie Intake and Leisure Time Physical activity at follow-up explained by their baseline levels and age at follow-up

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

Explanatory variable Coefficient ± Standard Error P
Body fat at follow-up Equation, kg
 Depression score at baseline, CES-D 0.007 ± 0.021 0.725
 Leisure time physical activity at baseline, METs/wk −0.017 ± 0.013 0.177
 Calorie Intake at baseline, 100 kcal 0.020 ± 0.025 0.435
 Body fat at baseline, kg 0.924 ± 0.032 < 0.001
 Age at follow-up −0.111 ± 0.017 < 0.001
 Constant 28.455 ± 0.197 < 0.001
Leisure time physical activity at follow-up equation, METs/wk
 Depression score at baseline, CES-D −0.140 ± 0.063 0.026
 Leisure time physical activity at baseline, METs/wk 0.260 ± 0.062 < 0.001
 Calorie Intake at baseline, 100 kcal 0.109 ± 0.091 0.230
 Body fat at baseline, kg 0.027 ± 0.098 0.781
 Age at follow-up 0.036 ± 0.059 0.543
 Constant 12.211 ± 0.858 < 0.001
Calorie Intake at follow-up, 100 kcal
 Depression score at baseline, CES-D 0.108 ± 0.038 0.005
 Leisure time physical activity at baseline, METs/wk −0.018 ± 0.021 0.388
 Calorie Intake at baseline, 100 kcal 0.343 ± 0.063 < 0.001
 Body fat at baseline, kg −0.029 ± 0.056 0.611
 Age at follow-up −0.057 ± 0.031 0.066
 Constant 18.822 ± 0.386 < 0.001
Depression score at follow-up, CES-D*
 Depression score at baseline, CESD 0.439 ± 0.046 < 0.001
 Leisure time physical activity at baseline, METs/wk −0.018 ± 0.022 0.412
 Calorie Intake at baseline, 100 kcal 0.084 ± 0.042 0.046
 Body fat at baseline, kg 0.073 ± 0.051 0.151
 Age at follow-up −0.052 ± 0.033 0.116
 Constant 11.650 ± 0.402 < 0.001
Error Covariances
 Body fat with physical activity −1.532 ± 3.628 0.673
 Body fat with calorie intake 2.492 ± 1.471 0.090
 Body fat with depression score 1.268 ± 1.839 0.491
 Physical activity with calorie intake −2.716 ± 5.687 0.633
 Physical activity with depression score −2.953 ± 7.124 0.678
 Calorie intake with depression 7.824 ± 4.194 0.062
  1. n = 456
  2. Model estimated with the asymptotic distribution free method. All covariance parameters between exogenous variables were also included (available as Additional file 1: Table S1). All variables were centered at the mean except body fat at follow-up
  3. *Scaled 0–57, excludes an item that asked about whether the subject experienced lack of hunger