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Table 2 Main SS-related features of patients according to the HCV genotypes (1a, 1b, and non-1 genotypes)

From: How hepatitis C virus modifies the immunological profile of Sjögren syndrome: analysis of 783 patients

 

Genotype 1a

Genotype 1b

Non-1 genotypes

Bilateral P value

N = 8

N = 30

N = 5

Mean age, years

62.62 ± 12.62

64.93 ± 9.81

46.00 ± 8.15

0.002

Sex, male

0 (0 %)

8 (27 %)

2 (40 %)

0.182

Dry mouth

8 (100 %)

30 (100 %)

5 (100 %)

1.000

Dry eye

8 (100 %)

30 (100 %)

5 (100 %)

1.000

Altered ocular tests

5/6 (83 %)

23/24 (96 %)

4/5 (80 %)

0.381

Altered parotid scintigraphy

4/5 (80 %)

14/17 (82 %)

2/3 (67 %)

0.822

Positive salivary gland biopsy

5/5 (100 %)

3/5 (60 %)

0/2 (0 %)

0.037

Criteria SS

 - 1993 only

3 (37 %)

20 (67 %)

2 (40 %)

0.175

 - 2002

5 (63 %)

7 (23 %)

3 (60 %)

 - ACR only

0 (0 %)

3 (10 %)

0 (0 %)

Antinuclear antibody+

6 (75 %)

26 (87 %)

4 (80 %)

0.709

Rheumatoid factor+

3 (37 %)

16/29 (55 %)

1 (20 %)

0.284

Anti-Ro/SS-A+

2 (25 %)

3 (10 %)

2 (40 %)

0.185

Anti-La/SS-B+

1 (12 %)

5 (17 %)

2 (40 %)

0.410

Monoclonal gammopathy

3 (37 %)

13/26 (50 %)

0/1 (0 %)

0.535

Type of monoclonal band

 - mIgA/mIgG/mIgM/free chains

0/0/2/1

1/6/5/1

0/0/0/0

0.34

 - Kappa:lambda light chains

1:2

6:7

0

1.000

Cryoglobulin+

4 (50 %)

20/29 (69 %)

0 (0 %)

0.014

Low C3 levels, <0.82 g/l

3 (37 %)

12 (40 %)

3 (60 %)

0.677

Low C4 levels, <0.11 g/l

4 (50 %)

13 (43 %)

2 (40 %)

0.926

Hematological neoplasia

1 (12 %)

3 (10 %)

1 (20 %)

0.809

Neoplasia

1 (12 %)

6 (20 %)

1 (20 %)

0.886

Death

4 (50 %)

9 (30 %)

0 (0 %)

0.161

Viral load > 5,000,000

2 (25 %)

11/28 (39 %)

0/5 (0 %)

0.095

Max viral load (log)

6.36 ± 0.39

6.13 ± 0.55

5.96 ± 0.38

0.350

  1. SS Sjögren syndrome, HCV hepatitis C virus, IgG immunoglobulin G, ACR American College of Radiology, SS-A Sjögren syndrome A antigen, SS-B Sjögren syndrome B antigen, mIg circulating monoclonal immunoglobulin, C3 complement component 3, C4 complement component 4Bold numbers: statistically-significant differences in the univariate analysis (p<0.05)