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Table 3 Incidence rate ratio of diseases along with sex and number of episodes of uveitis

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

Subgroup Group No. of AS Person-years IR IRR (95% CI) P value
By age
 < 40 years Control subjects 11 86,359 12.7 1 (reference)  
All uveitis 32 15,430 207.4 17.64 (8.87–35.09) < 0.001
Recurrent uveitis 12 2461 487.5 46.78 (19.61–111.61) < 0.001
 40–59 years Control subjects 16 87,723 18.2 1 (reference)  
All uveitis 19 15,745 120.7 6.70 (3.44–13.06) < 0.001
Recurrent uveitis 8 2994 267.2 15.12 (6.41–35.65) < 0.001
 > 59 years Control subjects 17 85,785 19.8 1 (reference)  
All uveitis 6 15,739 38.1 1.90 (0.75–4.81) 0.178
Recurrent uveitis 1 2119 47.2 2.46 (0.33–18.53) 0.382
By sex
 Male Control subjects 29 142,124 20.4 1 (reference)  
All uveitis 33 25,678 128.5 6.34 (3.84–10.44) < 0.001
Recurrent uveitis 12 4224 284.1 14.38 (7.28–28.41) < 0.001
 Female Control subjects 15 117,744 12.7 1 (reference)  
All uveitis 24 21,235 113.0 9.54 (4.99–18.24) < 0.001
Recurrent uveitis 9 3350 268.7 23.61 (10.05–55.47) < 0.001
  1. Abbreviations: AS Ankylosing spondylitis, IR Incidence rate per 100,000 person-years, IRR Incidence rate ratio