Table 3.

Association of PMN elastase levels and ENR with laboratory parameters of patients with myositis

	PMN elastase			ENR
	IIMs	DM	PM	IIMs	DM	PM
Muscle enzymes
CK	0.308**	0.339**	0.229	0.289**	0.332**
LDH	0.366**	0.386**	0.211	0.287*	0.295*	0.307
ALT	0.437***	0.406***	0.288	0.343**	0.296*	0.251
AST	0.438***	0.454***	0.23	0.419***	0.442***	0.197
Inflammation marker
CRP	0.35**	0.346*	0.194	0.329**	0.357**	0
ESR	0.315**	0.292**	0.146	0.362**	0.4**	0.006
C4	0.11	0.02	0.168	0.159	0.121	− 0.077
C3	− 0.023	− 0.064	0.214	0.01	0.017	− 0.068
Neutrophil	0.286**	0.339**	0.284	− 0.174	− 0.104	− 0.132
Lymphocyte	− 0.275	− 0.279	− 0.314	− 0.388	− 0.432***	− 0.241
NLR	0.443***	0.485**	0.361*	0.207*	0.291*	0.005

Data were analysed using the Spearman’s rank correlation

ENR PMN elastase-to-netrophil ratio, CK creatine phosphokinase, AST aspartate aminotransferase, ALT alanine aminotransferase, LDH lactate dehydrogenase, CRP C-reactive protein, ESR erythrocyte sedimentation rate, C4 complement fraction 4, C3 complement fraction 3, NLR the ratio of neutrophil count to lymphocyte count