Lymphoma incidence based on year of RA or OA diagnosis with maximum follow-up of 6 years since diagnosis
| Disease type and cohort year | Patient-years (n)/Lymphomas (n=337) | Rate per 1000 patient-years | Disease type and cohort year | Patient-years (n)/Lymphomas (n=396) | Rate per 1000 patient-years |
|---|---|---|---|---|---|
| RA 2003–2005 | 52 987/107 | 2 | OA 2003–2005 | 97 931/117 | 1.2 |
| RA 2006–2008 | 46 661/82 | 1.8 | OA 2006–2008 | 81 717/86 | 1.1 |
| RA 2009–2011 | 53 244/87 | 1.6 | OA 2009–2011 | 93 087/109 | 1.2 |
| RA 2012–2014 | 39 529/61 | 1.5 | OA 2012–2014 | 68 160/84 | 1.2 |
Not shown: For the 2015–2017 cohorts, 10 and 21 lymphomas were diagnosed in patients with RA and OA patients, respectively.
OA, osteoarthritis; RA, rheumatoid arthritis.