Sleep Problems in Patients with Rheumatoid Arthritis

From the Skeletal Biology and Engineering Research Center, KU Leuven Department of Development and Regeneration, and the Center for Health Services and Nursing Research, KU Leuven Department of Public Health and Primary Care, and Rheumatology, University Hospitals of Leuven, Leuven; Medical Department, Bristol-Myers Squibb, Brussels, Belgium; EJB Systems Inc., Oakville, Ontario, Canada; Global Health Economics and Outcomes Research, Bristol-Myers Squibb, Princeton, New Jersey, USA. Supported by Bristol-Myers Squibb. R. Westhovens has received grant/research support and/or fees (for consultancy or for participation in a speakers bureau) from Bristol-Myers Squibb, Centocor Inc., Roche, Schering-Plough, and UCB Inc. A. Matthys and I. Gilloteau are employees of Bristol-Myers Squibb. R. Westhovens, MD, PhD, Skeletal Biology and Engineering Research Center, KU Leuven Department of Development and Regeneration, and Rheumatology, University Hospitals of Leuven; K. Van der Elst, MSc, Center for Health Services and Nursing Research, KU Leuven Department of Public Health and Primary Care, and Rheumatology, University Hospitals of Leuven; A. Matthys, MD, Medical Department, Bristol-Myers Squibb; M. Tran, MSc, Consultant, EJB Systems Inc.; I. Gilloteau, MSc, MPH, Global Health Economics and Outcomes Research, Bristol-Myers Squibb. Address correspondence to Prof. R. Westhovens, Rheumatology, University Hospital Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium. E-mail: rene.westhovens@uzleuven.be. Accepted for publication September 6, 2013.

From the Skeletal Biology and Engineering Research Center, KU Leuven Department of Development and Regeneration, and the Center for Health Services and Nursing Research, KU Leuven Department of Public Health and Primary Care, and Rheumatology, University Hospitals of Leuven, Leuven; Medical Department, Bristol-Myers Squibb, Brussels, Belgium; EJB Systems Inc., Oakville, Ontario, Canada; Global Health Economics and Outcomes Research, Bristol-Myers Squibb, Princeton, New Jersey, USA. Supported by Bristol-Myers Squibb. R. Westhovens has received grant/research support and/or fees (for consultancy or for participation in a speakers bureau) from Bristol-Myers Squibb, Centocor Inc., Roche, Schering-Plough, and UCB Inc. A. Matthys and I. Gilloteau are employees of Bristol-Myers Squibb. R. Westhovens, MD, PhD, Skeletal Biology and Engineering Research Center, KU Leuven Department of Development and Regeneration, and Rheumatology, University Hospitals of Leuven; K. Van der Elst, MSc, Center for Health Services and Nursing Research, KU Leuven Department of Public Health and Primary Care, and Rheumatology, University Hospitals of Leuven; A. Matthys, MD, Medical Department, Bristol-Myers Squibb; M. Tran, MSc, Consultant, EJB Systems Inc.; I. Gilloteau, MSc, MPH, Global Health Economics and Outcomes Research, Bristol-Myers Squibb. Address correspondence to Prof. R. Westhovens, Rheumatology, University Hospital Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium. E-mail: rene.westhovens@uzleuven.be. Accepted for publication September 6, 2013.

From the Skeletal Biology and Engineering Research Center, KU Leuven Department of Development and Regeneration, and the Center for Health Services and Nursing Research, KU Leuven Department of Public Health and Primary Care, and Rheumatology, University Hospitals of Leuven, Leuven; Medical Department, Bristol-Myers Squibb, Brussels, Belgium; EJB Systems Inc., Oakville, Ontario, Canada; Global Health Economics and Outcomes Research, Bristol-Myers Squibb, Princeton, New Jersey, USA. Supported by Bristol-Myers Squibb. R. Westhovens has received grant/research support and/or fees (for consultancy or for participation in a speakers bureau) from Bristol-Myers Squibb, Centocor Inc., Roche, Schering-Plough, and UCB Inc. A. Matthys and I. Gilloteau are employees of Bristol-Myers Squibb. R. Westhovens, MD, PhD, Skeletal Biology and Engineering Research Center, KU Leuven Department of Development and Regeneration, and Rheumatology, University Hospitals of Leuven; K. Van der Elst, MSc, Center for Health Services and Nursing Research, KU Leuven Department of Public Health and Primary Care, and Rheumatology, University Hospitals of Leuven; A. Matthys, MD, Medical Department, Bristol-Myers Squibb; M. Tran, MSc, Consultant, EJB Systems Inc.; I. Gilloteau, MSc, MPH, Global Health Economics and Outcomes Research, Bristol-Myers Squibb. Address correspondence to Prof. R. Westhovens, Rheumatology, University Hospital Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium. E-mail: rene.westhovens@uzleuven.be. Accepted for publication September 6, 2013.

From the Skeletal Biology and Engineering Research Center, KU Leuven Department of Development and Regeneration, and the Center for Health Services and Nursing Research, KU Leuven Department of Public Health and Primary Care, and Rheumatology, University Hospitals of Leuven, Leuven; Medical Department, Bristol-Myers Squibb, Brussels, Belgium; EJB Systems Inc., Oakville, Ontario, Canada; Global Health Economics and Outcomes Research, Bristol-Myers Squibb, Princeton, New Jersey, USA. Supported by Bristol-Myers Squibb. R. Westhovens has received grant/research support and/or fees (for consultancy or for participation in a speakers bureau) from Bristol-Myers Squibb, Centocor Inc., Roche, Schering-Plough, and UCB Inc. A. Matthys and I. Gilloteau are employees of Bristol-Myers Squibb. R. Westhovens, MD, PhD, Skeletal Biology and Engineering Research Center, KU Leuven Department of Development and Regeneration, and Rheumatology, University Hospitals of Leuven; K. Van der Elst, MSc, Center for Health Services and Nursing Research, KU Leuven Department of Public Health and Primary Care, and Rheumatology, University Hospitals of Leuven; A. Matthys, MD, Medical Department, Bristol-Myers Squibb; M. Tran, MSc, Consultant, EJB Systems Inc.; I. Gilloteau, MSc, MPH, Global Health Economics and Outcomes Research, Bristol-Myers Squibb. Address correspondence to Prof. R. Westhovens, Rheumatology, University Hospital Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium. E-mail: rene.westhovens@uzleuven.be. Accepted for publication September 6, 2013.

From the Skeletal Biology and Engineering Research Center, KU Leuven Department of Development and Regeneration, and the Center for Health Services and Nursing Research, KU Leuven Department of Public Health and Primary Care, and Rheumatology, University Hospitals of Leuven, Leuven; Medical Department, Bristol-Myers Squibb, Brussels, Belgium; EJB Systems Inc., Oakville, Ontario, Canada; Global Health Economics and Outcomes Research, Bristol-Myers Squibb, Princeton, New Jersey, USA. Supported by Bristol-Myers Squibb. R. Westhovens has received grant/research support and/or fees (for consultancy or for participation in a speakers bureau) from Bristol-Myers Squibb, Centocor Inc., Roche, Schering-Plough, and UCB Inc. A. Matthys and I. Gilloteau are employees of Bristol-Myers Squibb. R. Westhovens, MD, PhD, Skeletal Biology and Engineering Research Center, KU Leuven Department of Development and Regeneration, and Rheumatology, University Hospitals of Leuven; K. Van der Elst, MSc, Center for Health Services and Nursing Research, KU Leuven Department of Public Health and Primary Care, and Rheumatology, University Hospitals of Leuven; A. Matthys, MD, Medical Department, Bristol-Myers Squibb; M. Tran, MSc, Consultant, EJB Systems Inc.; I. Gilloteau, MSc, MPH, Global Health Economics and Outcomes Research, Bristol-Myers Squibb. Address correspondence to Prof. R. Westhovens, Rheumatology, University Hospital Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium. E-mail: rene.westhovens@uzleuven.be. Accepted for publication September 6, 2013.