Accurate Detection of Changes in Disease Activity in Primary Sjogren's Syndrome by the European League Against Rheumatism Sjogren's Syndrome Disease Activity Index
Research output: Contribution to journal › Article
Objective. To assess and compare the sensitivity to change of the European League Against Rheumatism Sjogren's Syndrome Disease Activity Index (ESSDAI) with that of other primary Sjogren's syndrome (SS) disease activity indexes. Methods. We abstracted 96 patient profiles, including data on 3 successive visits (visits 1-3), from the medical charts of patients with primary SS. Patient profiles were scored with the ESSDAI, SS Disease Activity Index (SSDAI), and Sjogren's Systemic Clinical Activity Index (SCAI). Thirty-nine experts assessed 5 profiles for whether disease activity had improved, worsened, or remained stable at visits 2 and 3. Results. For improved patients, the standardized response means (SRMs) for all scores did not differ, and ranged from -1.08 to -1.38 between visits 1 and 2 and from -0.50 to -0.76 between visits 2 and 3. For patients with worsened activity, the SRMs between visits 1 and 2 and between visits 2 and 3 were +0.46 and +1.10 for the ESSDAI, -0.03 and +0.79 for the SSDAI, and +0.17 and +1.02 for the SCAI, respectively. For patients with stable activity, the SRMs between visits 1 and 2 and between visits 2 and 3 were 0.00 and -0.13 for the ESSDAI, -0.44 and -0.11 for the SSDAI, and -0.36 and +0.34 for the SCAI, respectively. Conclusion. For patients with improved activity, the 3 disease activity indexes showed similar, large sensitivity to change. However, the ESSDAI seemed to detect changes in activity more accurately than other disease activity indexes. Notably, for patients with stable activity, the ESSDAI did not show erroneous improvement.
|Research areas and keywords||
Subject classification (UKÄ) – MANDATORY
|Journal||Arthritis Care and Research|
|Publication status||Published - 2010|
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Emergency medicine/Medicine/Surgery (013240200)