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Table 1 Clinical characteristics of patients, data is given as median and range

From: Lung clearance index and diffusion capacity for CO to detect early functional pulmonary impairment in children with rheumatic diseases

Number of patients, n

19

 male/female

7/12

Age [years]

14.0 (9–17)

Duration of disease [years]

4.0 (0–10)

Diagnosis, n

 JIA

12

  - psoriatic arthritis

1

  - polyarthritis

5

  - oligoarthritis

4

  - undifferentiated JIA

1

  - enthesitis associated arthritis

1

 other rheumatic diseases

7

  - mixed connective tissue disease

1

  - juvenile dermatomyositis

1

  - systemic autoimmune disorders of unspecified identity

3

  - chronic recurrent multifocal osteomyelitis

1

  - COPA-Syndrome

1

Disease activity, n

 active/inactive

10/9

Therapy, ever, n

 Methotrexate/Biologicals/None

15/6/3

LCI

8.03 (6.1–14.1)

DLCO [% Hb corrected]

81.0 (50–119)

TLC [% predicted]

91 (56–119)

  1. Data are given as median and range
  2. JIA juvenile idiopathic arthritis, LCI lung clearance index, DLCO diffusion capacity of carbon monoxide, TLC total lung capacity