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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Hypnotic withdrawn * BAI 9464.062 1 9464.062 5.369 p = 0.03
Hypnotics withdrawn 19912.822 1 19912.822 11.297 p = 0.003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).