Table 2.

Correlation between DNase I activity and other serological markers in dermatomyositis (DM) patients

		LL-37	cfDNA	Neutrophil	CRP	CK	MYOACT-p	MMT
DNase I	r	−0·260	0·009	−0·237	−0·296	−0·114	0·207	−0·167
	P	0·440	0·959	0·032*	0·007**	0·304	0·195	0·446

^*Correlations were considered significant at the 0·05 level (two-tailed).

^**Correlations were considered significant at the 0.01 level (two-tailed). Statistical analysis was performed by using the two-tailed Pearson's correlation test. CRP = C-reactive protein; CK = creatine kinase; MYOACT-p = myositis disease activity assessment visual analog scales-pulmonary disease activity; MMT = manual muscle test; cfDNA = circulating cell-free DNA.