Cognitive behavioural therapy (CBT) v waiting list/self monitoring (control) for insomnia secondary to chronic pain

Outcomes at 3 monthsCBTControl Mean difference (95% CI)
‡PSQI=Pittsburgh Sleep Quality Index. Mean difference and CI calculated from data in article.
Sleep onset latency (min)27.846.819.0 (4.1 to 33.9)
Sleep efficiency84%71%13% (6 to 20)
Wake after sleep onset (min)51.697.545.9 (17.4 to 74.4)
PSQI score 7.913.5 5.6 (3.7 to 7.5)