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Table 4 Association between articular subclinical ultrasound shoulder joint lesions in RA patients and their demographic, clinical, and treatment parameters

From: Predictors of subclinical shoulder joint affection in patients with rheumatoid arthritis by ultrasonography

Rheumatoid patients

RA patients (80)

p

With articular lesions, No (%)

Without articular lesions, No (%)

χ2

Sex

Female

28 (48.3)

30 (51.7)

58

0.22

Male

14 (63.6)

8 (36.4)

22

Occupation

Non-manual worker

8

6

14

0.7

Manual worker

34

32

66

Co-morbidity

Yes

9 (60)

6 (40)

15

0.71

No

33 (50.7)

32 (49.3)

65

RF

+ ve

41 (66.2)

21 (33.8)

62

0.0002*

− ve

1 (5.5)

17 (94.5)

18

Anticcp

+ ve

31 (60.7)

20 (39.3)

51

0.08

− ve

11 (38)

18 (62)

29

NSAID

Yes

20 (49)

21 (51)

41

0.5

No

22 (56.4)

17 (43.6)

39

Steroid

Yes

39 (52.7)

35 (47.3)

74

0.76

No

3 (50)

3 (50)

6

Age (years)

Mean ± SD

42. ± 10

43.8 ± 16

U

0.6

ESR

Mean ± SD

38 ± 26

33 ± 16

U

0.6

Disease duration (years)

Mean ± SD

4 ± 1.5

2.8 ± 1.6

U

0.001*

CRP

Mean ± SD

8.3 ± 4.5

7 ± 3.4

U

0.25

DAS-28

Mild

1 (10)

9 (90)

10

0.0006*

Moderate

30 (51.7)

28 (48.3)

58

Severe

11 (91.6)

1 (8.4)

12

  1. ESR erythrocyte sedimentation rate, CRP C-reactive protein, RF rheumatoid factor, anti-CCP anti-cyclic citrullinated peptide antibodies, DAS-28 score 28-joint count disease activity score, NSAID non-steroidal anti-inflammatory drugs, U Mann-Whitney test; χ2 chi-square test
  2. *Added values are significant at p < 0.05