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Table 3 Basic characteristics of patients in each of the four groups

From: The value of serum Krebs von den lungen-6 as a diagnostic marker in connective tissue disease associated with interstitial lung disease

Characteristics

CTD-ILD, n = 84

CTD, n = 71

p

RA,n(%)

17 (20.24)

14 (19.72)

0.936

SS,n(%)

12 (14.29)

12 (16.90)

0.654

SLE,n(%)

13 (15.48)

16 (22.54)

0.262

IIM,n(%)

14 (16.67)

11 (15.49)

0.843

SSc,n(%)

17 (20.24)

9 (12.68)

0.209

MCTD,n(%)

4 (4.76)

3 (4.23)

1.000

Vasculitis,n(%)

5 (5.95)

5 (7.04)

1.000

OS,n(%)

2 (2.38)

1 (1.41)

1.000

Rash,n(%)

14 (16.67)

19 (26.76)

0.126

Raynaud’s phenomenon,n(%)

38 (45.24)

4 (5.63)

< 0.001

Arthritis,n(%)

32 (38.10)

39 (54.93)

0.036

Fever,n(%)n)

13 (15.48)

13 (18.31)

0.638

ANA,n(%)

66 (78.57

43 (60.56)

0.014

RF,n(%)

38 (45.24)

37 (52.11)

0.393

ESR (mm/H), median (IQR)

40 (21,70)

42 (21,60)

0.994

CRP (mg/L), median (IQR)

4.77 (2.28,18)

8.31 (2.52,31.8

0.143

LDH(U/L), median (IQR)

235 (185,333)

202 (169,268)

0.039

IgG(g/L), median (IQR)

17.35 (15.05,21.7)

16.1 (12.6,20.1)

0.098

C3(g/L), median (IQR)

0.93 (0.8,1.1)

0.93 (0.61,1.2)

0.849

C4(g/L), median (IQR)

0.18 (0.14,0.23)

0.19 (0.12,0.27)

0.763

WBC(m × 109/L), median (IQR)

5.8 (4.4,9.1)

6.9 (4.1,8.6)

0.994

N(×109/L), median (IQR)

3.58 (2.53,6.4)

4.03 (2.55,5.91)

0.986

Hb(g/L), median (IQR)

119.5 (110,135)

117 (103,128)

0.115

PLT(×109/L), median (IQR)

224 (169.5299)

239 (155,305)

0.839

  1. RA Rheumatoid arthritis, SS Sjogrensyndrome, SLE Systemic lupus erythematosus, IIM Idiopathic inflammatory myopathy, SSc Systemic sclerosis, MCTD Mixed connective tissue disease, OS Overlap syndrome, CTD Connective tissue disease, CTD-ILD Interstitial lung disease associated with connective tissue disease