Cohort definition: Rheumatoid arthritis

[kmkostka]

Persons in secondary target cohorts:
For cohorts by disease aetiology: Rheumatoid arthritis
● have a record of a first surgery for wrist arthritis (index event)
● have a record of rheumatoid arthritis any time prior to and including the date of the index event

• Initial draft of cohort
• Run on sites
• Modifications per site or clinical input