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Table 1 Clinical and laboratory characteristics of the study population

From: Assessment of left atrial mechanical functions and atrial electromechanical delay in Juvenile idiopathic arthritis by tissue Doppler echocardiography

Variables

Patients with JIA (n = 34)a

Control group (n = 34)

P value**

Age (years)

13.75 ± 4.36

12.55 ± 3.54

0.89

Gender

 [Female, n (%)]

28(82.4%)

24(70.6%)

0.72

 [Male, n (%)]

6(17.6%)

10 (29.4%)

Classification

 

-

 

 [Systemic, n(%)]

2 (6%)

  

 [Polyarticular, n(%)]

31 (91.2%)

  

 [Oligoarticular, n(%)]

1 (2.9%)

  

 [Psoriatic, n(%)]

1 (2.9%)

  

 [Enthesitis related, n(%)]

0

  

 [Unspecified, n(%)]

0

  

Body mass index (kg/m2)

18.56 ± 4.8

17.35 ± 2.09

0.82

Systolic blood pressure (mmHg)

103.87 ± 13.58

93.21 ± 4.18

0.72

Diastolic blood pressure (mmHg)

65.81 ± 7.56

65.06 ± 5.46

0.84

Heart rate (beats/min)

95.9 ± 13.06

84.12 ± 13.24

0.82

Erythrocyte sedimentation rate (mm/hr.)

32.74 ± 11.55

12.68 ± 2.34

0.01*

C-reactive protein (mg/l)

6.72 ± 2.43

3.12 ± 1.94

0.03*

Rheumatoid factor (+ve)

3 (8.8%)

0 (0%)

 

JADAS-27

23.51 ± 9.53

-

 

Disease duration (months)

50.24 ± 15.98

-

 

Medications:

 

-

 

 Patients currently treated with Corticosteroid

4 (11.8%)

  

 Patients previously treated with Corticosteroid

9 (26.5%)

  

 Patients treated with NSAIDs

26 (76.5%)

  

 Patients treated with methotrexate

31 (91.2%)

  

 Patients treated with Biologic (Etanercept)

3 (8.8%)

  
  1. RF rheumatoid factor, −ve negative, +ve positive, JADAS-27 Juvenile arthritis disease activity score, NSAIDs non- steroidal anti-inflammatory drugs
  2. *Statistically significant at p < 0.05 using Mann-Whitney U test; **p < 0.05 adjusted by false discovery rate (FDR) (Benjamini-Hochberg)
  3. aall statistical analyses were performed for 31 patients with polyarticular JIA after exclusion of oligo-articular and systemic JIA patients