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Table 5 Becks Anxiety Inventory: 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

Main Effects B SE LB UB β p B SE LB UB β p
Intercept 3.09 0.70 1.71 4.46   < 0.01* 2.62 0.72 1.21 4.03   < 0.01*
HC (reference)             
MDD 11.07 0.86 9.39 12.75 .46 < 0.01* 11.81 0.91 10.03 13.60 .49 < 0.01*
AAD 12.02 0.85 10.35 13.70 .50 < 0.01* 11.83 0.85 10.15 13.51 .49 < 0.01*
MDD + AAD -4.16 1.23 -6.57 -1.76 -.16 < 0.01* -3.43 1.27 -5.91 -0.95 -.14 < 0.01*
Summer (reference)             
Autumn 0.34 0.72 -1.07 1.75 .01 0.64 0.35 0.72 -1.06 1.76 .01 0.63
Winter -0.55 0.77 -2.05 0.96 .02 0.48 0.92 1.01 -1.05 2.89 .03 0.36
Spring 0.20 0.77 -1.30 1.71 .007 0.27 1.13 0.88 -0.60 2.86 .04 0.20
Men (reference)             
Women 1.24 0.54 0.17 2.31 .05 0.02* 1.23 0.54 0.16 2.29 .05 0.02*
Two way interactions             
Winter & MDD        -2.93 1.28 -5.44 -0.42 -.08 0.02*
Spring & MDD + AAD        -2.86 1.37 -5.53 -0.18 -.06 0.04*
  1. B = Unstandardized Coefficient
  2. SE = standard error of B
  3. LB = Lower Bound of 95% Confidence Interval for B
  4. UB = Upper Bound of 95% Confidence Interval for B
  5. β = Standardized Coefficient
  6. * p < 0.05
  7. HC = Healthy Control
  8. MDD = Major Depressive Disorder
  9. AAD = Any Anxiety Disorder
  10. MDD + AAD = Major Depressive Disorder + Any Anxiety Disorder
  11. Note: adjusted R2 Model with seasons and covariates = 0,480
  12. Note: adjusted R2 Full model with seasons, covariates and interactions = 0,482