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Table 3 Logistic regression model for mediation analysis in the pathway of the relation of dietary patterns with depression

From: Vitamin D deficiency mediates the relationship between dietary patterns and depression: a case–control study

Model

1

p value

2

p value

3

p value

OR (95% CI)

Healthy dietary pattern

 Vitamin D (nm/l)

0.028

0.16

0.07

0.9 (0.86–1.006)

 TAC (mmol/l)

0.028

0.5

0.2

Invalid model*

Unhealthy dietary pattern

 Vitamin D (nm/l)

0.02

0.3

0.025

0.89 (0.82–0.98)

 TAC (mmol/l)

0.2

0.3

0.1

Invalid model*

  1. p ≤ 0.05 values are in italic
  2. Model 1: Logistic regression model for studying of relationship between depression and dietary patterns
  3. Model 2: Logistic regression for studying of relationship between healthy dietary pattern and depression with mediation variables
  4. Model 3: Logistic regression for studying of relationship between mediation variables and depression
  5. All of three models adjusted for job, education, marital status, children number, unemployment history in past 5 year, tragic events in past 6 months r, smoking and hookah, depression history, energy expenditure, and physical activity
  6. * Confidence intervals and p values for Hosmer and Lemeshow test that is the criterion of the goodness-of-fit for Logistic regression were nonacceptable