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Table 2 Univariate and multivariable correlates of exemption from school sports in the 5879 patients recorded in the year 2015

From: Participation in school sports among children and adolescents with juvenile idiopathic arthritis in the German National Paediatric Rheumatologic Database, 2000–2015: results from a prospective observational cohort study

Variable

Univariate

Multivariable

OR

95% CI

P

OR

95% CI

P

Age

1.11

1.09–1.14

< 0.001

1.09

1.04–1.14

< 0.001

BMI

1.07

1.05–1.10

< 0.001

1.01

0.97–1.05

0.656

Female sex

1.30

1.11–1.52

0.001

1.00

0.78–1.28

1.000

Disease duration

0.99

0.99–1.00

0.049

   

Age at disease onset

1.08

1.06–1.10

< 0.001

1.03

1.00–1.06

0.041

RF-positive polyarthritis

1.60

1.13–2.26

0.008

1.25

0.74–2.13

0.407

RF-negative polyarthritis

0.98

0.83–1.16

0.831

0.73

0.55–0.97

0.028

Systemic JIA

0.96

0.71–1.29

0.777

1.44

0.88–2.37

0.147

Persistent oligoarthritis

0.80

0.69–0.92

0.003

1.36

1.07–1.73

0.013

Extended oligoarthritis

1.07

0.88–1.31

0.487

1.29

0.95–1.76

0.097

Psoriatic arthritis

1.16

0.90–1.50

0.248

1.11

0.74–1.65

0.618

Enthesitis-related arthritis

0.85

0.71–1.02

0.075

0.71

0.52–0.96

0.028

cJADAS-10

1.15

1.13–1.17

< 0.001

1.08

1.03–1.13

0.001

PGA score

1.33

1.29–1.38

< 0.001

   

Inactive disease*

0.28

0.24–0.33

< 0.001

   

No. of joints with active arthritis

1.10

1.08–1.12

< 0.001

   

ESR

1.02

1.02–1.03

< 0.001

   

C-HAQ total score

1.13

1.11–1.15

< 0.001

1.85

1.39–2.45

< 0.001

No functional limitations†

0.24

0.21–0.28

< 0.001

   

Overall well-beingφ

1.30

1.27–1.34

< 0.001

   

Pain intensityφ

1.25

1.22–1.28

< 0.001

1.04

0.97–1.11

0.265

Fatigueφ

1.17

.14–1.20

< 0.001

0.97

0.92–1.02

0.235

Copingφ

1.28

1.24–1.32

0.001

1.05

0.98–1.13

0.191

Treatment in past 12 months

 Any systemic GCs

   

1.35

0.91–2.01

0.137

 Low-dose GCs (< 0.2 mg/kg)

2.06

1.43–2.96

< 0.001

   

 Any high-dose GCs (> 0.2 mg/kg)≠

1.90

1.36–2.67

< 0.001

   

 Intra-articular GCs

1.97

1.55–2.51

< 0.001

1.52

1.08–2.15

0.017

 Any DMARD

1.67

1.42–1.97

< 0.001

1.70

1.33–2.19

< 0.001

Parent with academic degree

1.31

1.02–1.67

0.035

   

Regular exercise in leisure time (patients aged ≥13)‡

0.46

0.38–0.57

< 0.001

   

Physiotherapy

1.88

1.62–2.18

< 0.001

1.27

1.01–1.60

0.040

Occupational therapy

1.54

1.24–1.92

< 0.001

0.96

0.66–1.39

0.819

No physical therapy

0.55

0.47–0.64

< 0.001

   
  1. OR odds ratio, 95% CI 95% confidence interval, RF rheumatoid factor, JIA juvenile idiopathic arthritis, JADAS-10 10-joint Juvenile Arthritis Disease Activity Score, PGA physician’s global assessment, ESR erythrocyte sedimentation rate, C-HAQ Childhood Health Assessment Questionnaire, GCs glucocorticoids, DMARD disease-modifying antirheumatic drug
  2. * Defined by a PGA score of zero
  3. † Defined by a C-HAQ score of zero
  4. φ Assessed on a numerical rating scale (maximum score 10)
  5. ≠ Defined as high dose GCs (≥ 0.2 mg/kg) and/or intravenous pulse therapy
  6. ‡ ‘daily/3–5 times a week/1–2 times a week’ vs. ‘less than once a week/never’
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Pediatric Rheumatology

ISSN: 1546-0096