Table 3.

Spearman’s rank correlation coefficients of LFA-REAL musculoskeletal and LFA-REAL mucocutaneous with other disease activity scoring instruments

	LFA-REAL musculoskeletal	LFA-REAL mucocutaneous
BILAG musculoskeletal	0.842
SLEDAI arthritis	0.817
Tender joint counts	0.634
Swollen joint counts	0.784
BILAG mucocutaneous		0.826
SLEDAI mucocutaneous		0.798
CLASI activity		0.789

BILAG, British Isles Lupus Assessment Group Index; CLASI, Cutaneous Lupus Area and Severity Index; LFA-REAL, Lupus Foundation of America-Rapid Evaluation of Activity in Lupus; SLEDAI, SLE Disease Activity Index.