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Table 2 Incidence rate ratio of diseases, along with number of episodes of uveitis

From: Recurrent anterior uveitis and subsequent incidence of ankylosing spondylitis: a nationwide cohort study from 2002 to 2013

Disease Group No. of diseases Person-years IR IRR (95% CI) P value
AS Control subjects 44 52,415 16.9 1 (reference)  
All uveitis 57 10,483 121.5 7.40 (4.99–10.98) < 0.001
Recurrent uveitis 21 2038 277.3 17.71 (10.44–30.06) < 0.001
RA Control subjects 141 52,241 54.5 1 (reference)  
All uveitis 30 10,439 64.0 1.16 (0.78–1.71) 0.473
Recurrent uveitis 6 2038 78.6 1.45 (0.64–3.28) 0.377
HIVD Control subjects 671 51,833 262.2 1 (reference)  
All uveitis 117 10,329 252.9 0.97 (0.80–1.18) 0.757
Recurrent uveitis 18 2019 238.4 0.93 (0.58–1.48) 0.750
  1. Abbreviations: AS Ankylosing spondylitis, HIVD Herniated intervertebral disc, IR Incidence rate per 100,000 person-years, IRR Incidence rate ratio, RA Rheumatoid arthritis