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Table 4 Effect of hypnotic discontinuation and reduced anxiety as possible factors reducing wake after sleep onset. Dependent variable: WASO (wake after sleep onset).

From: Discontinuation of hypnotics during cognitive behavioural therapy for insomnia

Source

Sum of Squares

df

Mean Square

F-value

Significance

Corrected Model

25643.428

6

4273.905

2.425

p = 0.04

Intercept

6782.891

1

6782.891

3.848

p = 0.06

Hypnotic withdrawn * BAI

9464.062

1

9464.062

5.369

p = 0.03

Hypnotics withdrawn

19912.822

1

19912.822

11.297

p = 0.003

BAI

8910.463

1

8910.463

5.055

p = 0.04

Error

37015.599

21

1762.648

  

Total

91619.750

28

   

Corrected Total

62659.027

27

   
  1. df – degree of freedom; BAI – Beck Anxiety Inventory;
  2. Characters in bold indicate significance (p < 0.05).