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Table 9 Atypical symptoms of the IDS: regression model with groups, seasons, covariates and full model with interactions

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

  B SE LB UB β p B SE LB UB β p
Intercept 4.27 0.24 3.79 4.74   < 0.01* 3.64 0.34 2.97 4.31   < 0.01*
HC (reference)             
MDD 2.26 0.19 1.88 2.63 .48 < 0.01* 2.25 0.19 1.88 2.62 .48 < 0.01*
AAD 1.19 0.19 0.82 1.56 .26 < 0.01* 1.20 0.19 0.83 1.56 .26 < 0.01*
MDD + AAD -0.58 0.27 -1.10 -0.05 -.12 0.03* -0.57 0.27 -1.10 -0.04 -.12 0.04*
Summer (reference)             
Autumn 0.003 0.16 -0.31 0.32 .001 0.98 0.44 0.23 -0.01 0.89 .09 0.54
Winter 0.33 0.17 0.002 0.67 .06 < 0.05* 0.34 0.17 0.01 0.67 .06 < 0.05*
Spring 0.07 0.17 -0.26 0.40 .01 0.67 0.06 0.17 -0.27 0.39 .01 0.73
Men (reference)             
Women 0.65 0.12 0.42 0.89 .14 < 0.01* 1.71 0.40 0.92 2.50 .36 < 0.01*
Age -0.01 0.004 -0.02 0.03 -.07 < 0.01* 0.00 0.01 -0.01 0.01 .002 0.95
Two way interactions             
Autumn & Women        -0.73 0.26 -1.25 -0.22 -.13 < 0.01*
Age & Women        -0.02 0.009 -0.037 -0.002 -.19 0.03*
  1. IDS = Inventory of Depressive Symptoms
  2. B = Unstandardized Coefficient
  3. SE = standard error of B
  4. LB = Lower Bound of 95% Confidence Interval for B
  5. UB = Upper Bound of 95% Confidence Interval for B
  6. β = Standardized Coefficient
  7. * p < 0.05
  8. HC = Healthy Control
  9. MDD = Major Depressive Disorder
  10. AAD = Any Anxiety Disorder
  11. MDD + AAD = Major Depressive Disorder + Any Anxiety Disorder
  12. Note: adjusted R2 Model with seasons and covariates = 0,337
  13. Note: adjusted R2 Full model with seasons, covariates and interactions = 0,344