Table 4: Predicting sleep quality: study-wise linear regression.


Sleep quality (1 = very low, 10 = very high)
OSA ()
Predictors
 Constant5.120.000.47
 Sleep maintenance−.310.000
 Non-refreshed in the morning−.590.000
CBT-I (
Predictors
 Constant4.530.000.23
 Non-refreshed in the morning−.560.003
 Sleep maintenance−.230.009
Controls ()
Predictors
 nsns

Severity of poor sleep quality (0 = not at all severe, 3 = very severe)
OSA ()
Predictors
 Constant1.870.000.36
 Sleep maintenance.160.001
 Non-refreshed in morning.200.031
CBT-I ()
Predictors
 Constant1.940.000.41
 Non-refreshed in morning.480.000
Controls ()
Predictors
 Constant2.230.000.52
 Sleep maintenance.320.003
 Non-refreshed in morning.280.026

Sleep Questionnaire.
Sleep Symptoms Checklist.