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Table 1 Clinical manifestations of scleritis patients and controls who participated in this research

From: The haplotypes of various TNF related genes associated with scleritis in Chinese Han

Clinical features

North of the Yangtze River

South of the Yangtze River

Total

N

%

N

%

N

%

Patients with scleritis

291

 

265

 

556

 

 Ethnicity

Han Chinese

 

Han Chinese

 

Han Chinese

 

 Mean age ± SD

39.1 ± 16.5

 

43.7 ± 15.4

 

41.3 ± 16.1

 

 Male

126

43.3

103

38.9

229

41.2

 Female

165

56.7

162

61.1

327

58.8

 Anterior scleritis

179

61.5

197

74.3

376

67.6

 Posterior scleritis

92

31.6

54

20.4

146

26.3

 Generalized scleritis

20

6.9

14

5.3

34

6.1

 Systemic associated diseasesa

32

11.0

24

9.1

59

10.6

  SLE

1

0.3

1

0.4

2

0.4

  IPT

1

0.3

1

0.4

2

0.4

  IBD

1

0.3

1

0.4

2

0.4

  Psoriasis

2

0.7

2

0.8

4

0.7

  GPA

2

0.7

3

1.1

5

0.9

  Gout

1

0.3

5

1.9

6

1.1

  RP

4

1.4

2

0.8

6

1.1

  AS

8

2.7

4

1.5

12

2.2

  RA

13

4.5

7

2.6

20

3.6

Healthy controls 710

469

 

273

 

742

 

 Ethnicity

Han Chinese

 

Han Chinese

 

Han Chinese

 

 Mean age ± SD

39.6 ± 10.2

 

40.4 ± 11.0

 

39.9 ± 10.5

 

 Male

245

52.2

132

48.4

377

50.8

 Female

224

47.8

141

51.6

365

49.2

  1. SD Standard deviation, SLE Systemic lupus erythematosus, IPT Inflammatory pseudotumor, IBD Inflammatory bowel disease, GPA Granulomatosis with polyangiitis, RP Relapsing polychondritis, AS Ankylosing spondylitis, RA Rheumatoid arthritis
  2. aOne patient from North of the Yangtze River was diagnosed with both AS and Gout. Two patients from South of the Yangtze River were diagnosed with both AS and RP