1.

纳入的IIM患者一般资料

Clinical features of IIM patients included in this study

Factors	Total (n=71)	PM (n=30)	DM (n=20)	CADM (n=16)	IMNM (n=5)	Test statistics	P
Note: Qualitative variables were presented as counts (n) and percentages (%) and were compared between groups using Fisher's exact test. Quantitative variables were presented as Means±SD and were compared using the one-way analysis of variance (ANOVA). NA: Not applicable.
Male/female	28/43	10/20	9/11	9/7	3/2	NA	0.411
Age (year)	50.3±11.0	50.3±9.4	55.1±12.0	44.0±11.0	50.4±11.0	2.97	0.038
Rash	37 (52.1)	0	20 (100.0)	16 (100.0)	1 (20.0)	NA	< 0.001
Raynaud	2 (2.8)	1 (3.3)	0	0	1 (20.0)	NA	0.185
Arthralgia	18 (25.3)	8 (26.6)	3 (15.0)	6 (37.5)	1 (20.0)	NA	0.491
Mechanic hands	6 (8.4)	2 (6.6)	3 (15.0)	1 (6.2)	0	NA	0.715
Dysphagia	11 (15.4)	3 (10.0)	7 (35.0)	1 (6.2)	0	NA	0.071
Myalgia	25 (35.2)	8 (26.6)	10 (50.0)	5 (31.2)	2 (40.0)	NA	0.372
Amyasthenia	38 (53.5)	16 (53.3)	15 (75.0)	3 (18.7)	4 (80.0)	NA	0.004
ILD	45 (63.3)	23 (76.6)	9 (45.0)	10 (62.5)	3 (60.0)	NA	0.140
Malignancy	9 (12.6)	1 (3.3)	4 (20.0)	4 (25.0)	0	NA	0.084
Infection	24 (33.8)	10 (33.3)	10 (50.0)	4 (25.0)	0	NA	0.168
Albuminuria	19 (26.7)	8 (26.6)	4 (20.0)	6 (37.5)	1 (20.0)	NA	0.689
CRP	17.8±37.2	16.6±46.3	14.3±19.0	27.3±40.8	8.63±13.6	0.506	0.680
ESR	37.7±31.0	34.1±31.0	35.4±26.1	45.2±33.5	46.3±47.5	0.551	0.649
Glb (g/L)	31.1±6.6	32.4±6.9	29.3±5.5	30.7±6.1	31.3±10.2	0.858	0.467
Alb (g/L)	33.3±5.9	34.9±5.7	31.5±5.4	31.8±6.3	35.4±3.7	2.08	0.111
CK	1978±2780	1854±2573	2695±2256	104±124	5856±5241	7.96	< 0.001
CK-MB	97±189	56±69	148±207	17±5	388±477	7.56	< 0.001
LDH	526±471	409±252	609±409	530±644	889±877	1.89	0.139
a-HBD	389±340	300±186	459±313	372±396	697±721	2.48	0.068
AST	100±128	69±67	146±127	90±181	139±190	1.65	0.186
ALT	73±80	74±65	79±82	48±79	118±142	1.1	0.355