This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/pcn.12960 The effectiveness of mindfulness-based cognitive therapy in patients with anxiety disorders in secondary care settings: a randomized controlled trial Running Title: MBCT for anxiety disorders Akira Ninomiya,1,2 MD akira-ninomiya@keio.jp Mitsuhiro Sado,1,2 MD, MSc, PhD mitsusado@keio.jp Sunre Park, 3 MA, RN spak@sfc.keio.ac.jp Daisuke Fujisawa, 1,4 MD, PhD dfujisawa@keio.jp Teppei Kosugi, 1 MD teppeitk@keio.jp Atsuo Nakagawa, 1,5 MD, PhD anakagawa@keio.jp Joichiro Shirahase,1,2 MD, PhD shirahase@keio.jp Masaru Mimura, 1,2 MD, PhD mimura@keio.jp 1 Department of Neuropsychiatry, Keio University School of Medicine 2 Center for Stress Research, Keio University 3 Faculty of Nursing and Medicine Care, Keio University 4 Division of Patient Safety, Keio University Hospital 5 Clinical and Translational Research Center, Keio University Hospital Corresponding author: Mitsuhiro Sado Department of Neuropsychiatry, Keio University School of Medicine, Shinanomachi 35, Shinjuku-ku, Tokyo, 160-8582, Japan Tel: +81-3-3353-1211 (Ext. 62454) Fax: +81-3-5379-0187 e-mail: mitsusado@keio.jp This article is protected by copyright. All rights reserved. The most appropriate field : psychopathology and psychotherapy The second most appropriate field : social psychiatry and epidemiology