Presented in part at the 68th Annual Meeting of the Society of Investigative Dermatology, Los Angeles, California, May 2007.
Systemic Lupus Erythematosus
Article first published online: 29 FEB 2008
Copyright © 2008 by the American College of Rheumatology
Arthritis Care & Research
Volume 59, Issue 3, pages 338–344, 15 March 2008
How to Cite
Krathen, M. S., Dunham, J., Gaines, E., Junkins-Hopkins, J., Kim, E., Kolasinski, S. L., Kovarik, C., Kwan-Morley, J., Okawa, J., Propert, K., Rogers, N., Rose, M., Thomas, P., Troxel, A. B., Van Voorhees, A., Feldt, J. V., Weber, A. L. and Werth, V. P. (2008), The cutaneous lupus erythematosus disease activity and severity index: Expansion for rheumatology and dermatology. Arthritis & Rheumatism, 59: 338–344. doi: 10.1002/art.23319
The University of Pennsylvania owns the copyright of CLASI for nonacademic use.
- Issue published online: 29 FEB 2008
- Article first published online: 29 FEB 2008
- Manuscript Accepted: 13 SEP 2007
- Manuscript Received: 28 MAR 2007
- Lupus Foundation of the Delaware Valley
- VA Merit Review grant
To evaluate the validity of the Cutaneous Lupus Erythematosus Disease Area and Severity Index (CLASI) for use by rheumatologists via reliability testing, and to extend the validation for dermatologists.
Fourteen subjects with cutaneous lupus erythematosus (CLE; n = 10), a mimicker skin disease only (a cutaneous lesion that may appear clinically similar to CLE; n = 1), or both (n = 3) were rated with the CLASI by academic-based dermatologists (n = 5) and rheumatologists (n = 5).
The dermatology intraclass correlation coefficient (ICC) was 0.92 for activity and 0.82 for damage; for rheumatology the ICC was 0.83 for activity and 0.86 for damage. For intrarater reliability, the dermatology Spearman's rho was 0.94 for activity and 0.97 for damage; for rheumatology the Spearman's rho was 0.91 for activity and 0.99 for damage.
Our data confirm the reliability of the CLASI when used by dermatologists and support the CLASI as a reliable instrument for use by rheumatologists.