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Table 1 Model of the log transformated scores of the Kessler-10 questionnaire

From: Seasonality in depressive and anxiety symptoms among primary care patients and in patients with depressive and anxiety disorders; results from the Netherlands Study of Depression and Anxiety

 

Empty model1

Seasons2

Full model3

Fixed Effect

β (SE)

β (SE)

β (SE)

Intercept

2.887 (0.013)

2.863 (0.024)

2.984 (0.025)

Spring (reference)

   

Summer

 

-0.014 (0.019)

-0.015 (0.018)

Autumn

 

-0.002 (0.021)

0.022 (0.019)

Winter

 

-0.013 (0.021)

-0.002 (0.019)

Men (reference)

   

Women

  

0.065 (0.011)*

Age

  

-0.002 (0.000)*

Amsterdam (reference)

   

Groningen

  

-0.127 (0.019)*

Random Effect

   

Level two: General practitioner Intercept variance

0.007 (0.002)

0.007 (0.002)

0.002 (0.001)*

Level one: Individual variance

0.144 (0.003)

0.144 (0.003)

0.142 (0.003)

Deviance

5086.6

5085.6

4928.3

  1. β = Beta
  2. SE = standard error
  3. * p < 0.05
  4. 1) Empty model
  5. 2) Model with seasons
  6. 3) Full model with seasons and covariates