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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