Reliability and Validity of the Tender and Swollen Joint Counts and the Modified Rodnan Skin Score in Early Diffuse Cutaneous Systemic Sclerosis: Analysis from the Prospective Registry of Early Systemic Sclerosis Cohort

Affiliations

• ¹ From the Department of Rheumatology, and Department of Epidemiology and Biostatistics, Hospital for Special Surgery; Department of Rheumatology, Columbia University, New York, New York; Department of Radiology, and Department of Biostatistics, University of Michigan; University of Michigan Scleroderma Program, Ann Arbor, Michigan; Department of Rheumatology, University of Texas, Houston, Texas; Department of Rheumatology, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Rheumatology, Medical University of South Carolina, Charleston, South Carolina; Department of Rheumatology, Northwestern University, Chicago, Illinois; Department of Rheumatology, Georgetown University, Washington, DC; Department of Rheumatology, University of Utah, Salt Lake City, Utah, USA. [email protected].
• ² J.K. Gordon, MD, MSc, Department of Rheumatology, Hospital for Special Surgery; G. Girish, MBBS, Department of Radiology, University of Michigan; V.J. Berrocal, MSc, PhD, Department of Biostatistics, University of Michigan; M. Zhang, PhD, Department of Epidemiology and Biostatistics, Hospital for Special Surgery; C. Hatzis, BA, Department of Rheumatology, Hospital for Special Surgery; S. Assassi, MD, MS, Department of Rheumatology, University of Texas; E.J. Bernstein, MD, MSc, Department of Rheumatology, Columbia University; R.T. Domsic, MD, MPH, Department of Rheumatology, University of Pittsburgh; F.N. Hant, DO, Department of Rheumatology, Medical University of South Carolina; M. Hinchcliff, MD, MS, Department of Rheumatology, Northwestern University; E. Schiopu, MD, University of Michigan Scleroderma Program; V.D. Steen, MD, Department of Rheumatology, Georgetown University; T.M. Frech, MD, MS, Department of Rheumatology, University of Utah; D. Khanna, MD, MS, University of Michigan Scleroderma Program. [email protected].
• ³ From the Department of Rheumatology, and Department of Epidemiology and Biostatistics, Hospital for Special Surgery; Department of Rheumatology, Columbia University, New York, New York; Department of Radiology, and Department of Biostatistics, University of Michigan; University of Michigan Scleroderma Program, Ann Arbor, Michigan; Department of Rheumatology, University of Texas, Houston, Texas; Department of Rheumatology, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Rheumatology, Medical University of South Carolina, Charleston, South Carolina; Department of Rheumatology, Northwestern University, Chicago, Illinois; Department of Rheumatology, Georgetown University, Washington, DC; Department of Rheumatology, University of Utah, Salt Lake City, Utah, USA.
• ⁴ J.K. Gordon, MD, MSc, Department of Rheumatology, Hospital for Special Surgery; G. Girish, MBBS, Department of Radiology, University of Michigan; V.J. Berrocal, MSc, PhD, Department of Biostatistics, University of Michigan; M. Zhang, PhD, Department of Epidemiology and Biostatistics, Hospital for Special Surgery; C. Hatzis, BA, Department of Rheumatology, Hospital for Special Surgery; S. Assassi, MD, MS, Department of Rheumatology, University of Texas; E.J. Bernstein, MD, MSc, Department of Rheumatology, Columbia University; R.T. Domsic, MD, MPH, Department of Rheumatology, University of Pittsburgh; F.N. Hant, DO, Department of Rheumatology, Medical University of South Carolina; M. Hinchcliff, MD, MS, Department of Rheumatology, Northwestern University; E. Schiopu, MD, University of Michigan Scleroderma Program; V.D. Steen, MD, Department of Rheumatology, Georgetown University; T.M. Frech, MD, MS, Department of Rheumatology, University of Utah; D. Khanna, MD, MS, University of Michigan Scleroderma Program.