Validity of systemic lupus erythematosus disease activity score (SLE-DAS) for definition of lupus low disease activity state (LLDAS).

SLE-DAS is a valid score for the definition of LLDAS which can be used in the clinical practice as a simple and precise standalone criterion. Key Points • Correlation between SLEDAI-2K and SLE-DAS revealed a high significance. • Identify SLE-DAS cut-off 6.62 for the definition of LLDAS. • There is a good agreement between SLEDAI-2K-derived definition of LLDAS and SLE-DAS definition.