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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