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OBJECTIVE: The primary objective was to compare the effects of cognitive-behavioral therapy for insomnia (CBT-I) with usual care on sleep efficiency, as measured by polysomnography (PSG) immediately after the intervention at week 7. Secondary objectives were to compare the long-term effects of week 26 on sleep and rheumatoid arthritis (RA)-related outcome.
Methods: In a randomized controlled trial with a parallel-group design, the experimental intervention was a 6-week nurse-guided group-based CBT-.
RESULTS: The ITT population included 62 patients (89% female) with a mean age of 58 years and a mean sleep efficiency of 81.
For the primary endpoint, sleep efficiency was 87% in the CBT-I group compared with 87% in the control group at PSG measurement at week 7 [difference: 03 (95% CI -37 to -143); p = 068.
There was no improvement in key secondary outcomes measured using PSG at week 26.
There were statistically highly significant differences between CBT-I and usual care for all patient-reported key secondary sleep and RA-related outcomes (p
CONCLUSIONS: Nurse-guided group CBT-I did not affect sleep efficiency as objectively measured by PS.
Source:
Latocha KM, Løppenthin KB, Østergaard M, et a.