Table 4. Comparisons of mean urinary plasmin levels in active LN patients according to renal biopsy grading.

		Urinary plasmin level (ng/mL)
LN grading	n	Mean±SD	p
SLE patients with LN class II/III	10	75.3±9.7	0.06*
SLE patients with LN class IV/V	8	84.1±4.2
LN: Lupus nephritis; SD: Standard deviation; SLE: Systemic lupus erythematosus; * p<0.05 significant.