Correlation of PMN elastase and PMN elastase-to-neutrophil ratio with disease activity in patients with myositis

Table 4 The associations of PMN elastase and ENR with autoantibodies in myositis patients

	IIMs		P value		DM		P value		PM		P value
	P/N	%	PMN elastase	ENR	P/N	%	PMN elastase	ENR	P/N	%	PMN elastase	ENR
ANA	63/7	90.0	0.619	0.724	47/7	87.0	0.413	0.489	16/0	100	–	–
Anti-Ro-52	41/33	55.4	0.732	0.511	28/30	48.3	0.250	0.109	13/3	81.3	0.638	0.545
Anti-Jo-1	15/59	20.3	0.633	0.386	7/51	12.1	0.072	0.467	8/8	100	0.916	0.401
Anti-PM-Scl	8/66	10.8	0.007	0.001	8/50	16.0	0.013	0.001	0/16	0	–	–
Anti-MDA5	21/53	28.4	0.619	0.385	21/37	36.2	0.289	0.740	0/16	0	–	–
Anti-Mi-2	11/63	14.9	0.184	0.074	11/47	19.0	0.326	0.124	0/16	0	–	–
Anti-TIF-1γ	14/60	18.9	0.649	0.610	12/46	20.1	0.618	0.420	2/14	12.5	0.056	0.056
Anti-NXP2	4/70	5.4	0.830	0.793	3/55	5.2	0.352	0.562	1/15	6.3	0.159	0.159
Anti-PL7	4/70	5.4	0.056	0.054	4/54	6.9	0.08	0.07	0/16	0	–	–
Anti-Ku	2/72	2.7	0.334	0.443	1/57	1.7	0.179	0.16	1/15	6.3	0.745	0.745
Anti-EJ	4/70	5.4	0.304	0.189	1/57	1.7	0.128	0.269	3/13	18.8	0.737	0.946
Anti-SAE1	3/71	4.1	0.184	0.064	3/55	5.2	0.136	0.056	0/16	0	–	–
Anti-SRP	3/71	4.1	0.077	0.150	1/57	1.7	0.324	0.570	2/14	12.5	0.266	0.266

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