Brief ReportUsefulness of Mindfulness-Based Cognitive Therapy for Treating Insomnia in Patients With Anxiety Disorders: A Pilot StudyYook, Keunyoung MA; Lee, Sang-Hyuk MD, PhD; Ryu, Mi MA; Kim, Keun-Hyang MA; Choi, Tae Kyou MD, PhD; Suh, Shin Young MD, PhD; Kim, Yong-Woo MD; Kim, Borah MD; Kim, Mi Young MSW; Kim, Myo-Jung MSWAuthor Information Department of Psychiatry-Bundang CHA Hospital, Pochon CHA University College of Medicine, Seongnam, Republic of Korea. Send reprint requests to Sang-Hyuk Lee, MD, PhD, Department of Psychiatry, Pochon CHA University College of Medicine, Bundang CHA Hospital, 351 Yatap, Bundang, Seongnam Kyounggi 463-712, Republic of Korea. E-mail: email@example.com. The Journal of Nervous and Mental Disease: June 2008 - Volume 196 - Issue 6 - p 501-503 doi: 10.1097/NMD.0b013e31817762ac Buy Metrics Abstract The objective of this study was to examine the usefulness of a mindfulness-based cognitive therapy (MBCT) for treating insomnia symptoms in patients with anxiety disorder. Nineteen patients with anxiety disorder were assigned to an 8-week MBCT clinical trial. Participants showed significant improvement in Pittsburgh Sleep Quality Index (Z = −3.46, p = 0.00), Penn State Worry Questionnaire (Z = −3.83, p = 0.00), Ruminative Response Scale (Z = −3.83, p = 0.00), Hamilton Anxiety Rating Scale (Z = −3.73, p = 0.00), and Hamilton Depression Rating Scale scores (Z = −3.06, p = 0.00) at the end of the 8-week program as compared with baseline. Multiple regression analysis showed that baseline Penn State Worry Questionnaire scores were associated with baseline Pittsburgh Sleep Quality Index scores. These findings suggest that MBCT can be effective at relieving insomnia symptoms by reducing worry associated sleep disturbances in patients with anxiety disorder. However, well-designed, randomized, controlled trials are needed to confirm our findings. © 2008 Lippincott Williams & Wilkins, Inc.