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Table 1 The clinical characteristics of the rheumatoid arthritis and control groups

From: Relation between pulmonary function tests and ultrasonographic changes of asymptomatic anterior chest wall joints in rheumatoid arthritis patients

 

RA

Control

T test

P

Age (years) mean ± SD

45.5 ± 9.8

43.4 ± 7.7

0.7

0.5

Sex (male) n (%)

8 (36)

9 (40.9)

2.2

0.6

Age of onset (years) (mean ± SD)

25.5 ± 4.6

NA

NA

NA

Duration (years) (mean ± SD)

8.2±2.7

NA

NA

NA

Chest expansion (mean ± SD)

2 ± 1.6

3 ± 0.6

0.7

0.8

Seropositive RF

15 (68.2%)

0 (0%)

3

0.007*

Anti-ccp2

17(68.2%)

0(0%)

2.2

0.02*

DAS28-ESR (mean ± SD)

4.9 ± 0.7

NA

NA

NA

mHAQ (mean ± SD)

5 ± 1.09

NA

NA

NA

Medications n(%

 Biological DMARDs

11 (50)

NA

NA

NA

 Conventional DMARDs

5 (22.7)

   
  1. RA rheumatoid arthritis, SD standard deviation, n number
  2. RF rheumatoid factor, Anti-ccp2 anti-cyclic citrullinated peptide, mHAQ modified health assessment questionnaire, DAS disease activity score, ESR erythrocyte sedimentation rate, DMARDs disease modifying agents for rheumatic diseases, NSAIDs non-steroidal anti-inflammatory drugs, NA not applicable