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Table 1 National Paediatric Rheumatological Database (NPRD) with a uveitis add-on module in Germany (2002–2016). Cumulative uveitis incidence in the different juvenile idiopathic arthritis (JIA) categories and in ANA-positive idiopathic anterior uveitis. Data as provided in NPRD and/or uveitis documentation

From: Similarities in clinical course and outcome between juvenile idiopathic arthritis (JIA)-associated and ANA-positive idiopathic anterior uveitis: data from a population-based nationwide study in Germany

Data 2002–2016 subgroups

No. of patients with uveitis

Cumulative uveitis incidence rate; % [95% CI]

Median disease duration at uveitis onset*; years [IQR]

Systemic arthritis

42/1466

2.9 (2.1–3.8)

3.7 [1.4–7.8]

Oligoarthritis (persistent)

1792/12669

14.1 (13.6–14.8)

2.8 [1.1–5.6]

Oligoarthritis (extended)

427/2228

19.2 (17.6–20.8)

5.8 [3.0–9.8]

Polyarthritis (RF-negative)

359/4854

7.4 (6.7–8.2)

3.4 [1.5–6.5]

Polyarthritis (RF-positive)

19/672

2.8 (1.8–4.3)

3.3 [1.7–5.8]

Enthesitis-related arthritis

348/4876

7.1 (6.4–7.9)

2.7 [1.2–4.9]

Psoriatic arthritis

153/2316

6.6 (5.6–7.7)

3.3 [1.4–6.6]

Other arthritis

106/1420

7.5 (6.2–8.9)

2.5 [0.8–5.3]

All JIA patients

3246/30541

10.6 (10.3–11-0)

3.1 [1.3–6.1]

ANA-positive, no JIA

305

  
  1. RF rheumatoid factor, IQR interquartile range*
  2. *Initial uveitis diagnosis