PT  - JOURNAL ARTICLE
AU  - Jessica K. Gordon
AU  - Gandikota Girish
AU  - Veronica J. Berrocal
AU  - Meng Zhang
AU  - Christopher Hatzis
AU  - Shervin Assassi
AU  - Elana J. Bernstein
AU  - Robyn T. Domsic
AU  - Faye N. Hant
AU  - Monique Hinchcliff
AU  - Elena Schiopu
AU  - Virginia D. Steen
AU  - Tracy M. Frech
AU  - Dinesh Khanna
TI  - 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
AID  - 10.3899/jrheum.160654
DP  - 2017 Jun 01
TA  - The Journal of Rheumatology
PG  - 791--794
VI  - 44
IP  - 6
4099  - http://www.jrheum.org/content/44/6/791.short
4100  - http://www.jrheum.org/content/44/6/791.full
SO  - J Rheumatol2017 Jun 01; 44
AB  - Objective. To determine the inter/intraobserver reliability of the tender and swollen joint counts (TJC, SJC) and the modified Rodnan Skin Score (mRSS) in diffuse cutaneous systemic sclerosis (dcSSc) and to assess content validity of the TJC/SJC.Methods. Ten rheumatologists completed the SJC, TJC, and mRSS on 7 patients. Musculoskeletal ultrasound (MSUS) was performed.Results. Interobserver and intraobserver reliability for the TJC was 0.97 and 0.99, for the SJC was 0.24 and 0.71, and for the mRSS was 0.81 and 0.94, respectively. MSUS abnormalities did not correspond with SJC/TJC.Conclusion. We demonstrate excellent inter- and intraobserver reliability for the mRSS and TJC in dcSSc. However, the SJC and TJC did not correspond to MSUS.