rheumatoid arthritis: A chronic, systemic autoimmune disorder characterized by inflammation in the synovial membranes and articular surfaces. It manifests primarily as a symmetric, erosive polyarthritis that spares the axial skeleton and is typically associated with the presence in the serum of rheumatoid factor.
Endpoint definition
↥
						Endpoint definition steps | 
					
						FinnGen | 
				
|---|---|
						Phenotype data | 
					429209 | 
								1. Apply sex-specific ruleNone  | 
							429209 | 
								2. Check conditionsNone  | 
							429209 | 
								3. Check pre-conditions, main-only, mode, registry filtersRegistry filters: 
 2 out of 7 registries used, show all original rules.  | 
							
								 4302  | 
						
								4. Check minimum number of eventsNone  | 
							4302 | 
								5. Include endpointsNone  | 
							4302 | 
										6. Filter based on genotype QC (FinnGen only) | 
									4192 | 
Control definitions (FinnGen only)
					Control exclude
					RHEUMA_ENDPOINTS
				
			Extra metadata
					First used in FinnGen datafreeze
					DF3
				
				
					Parent code in ICD-10
					M06
				
				
					Name in latin
					Arthritis rheumatoides seronegativa
				
			Similar endpoints
↥List of similar endpoints to
		
Seronegative rheumatoid arthritis
	based on the number of shared cases.
		
		Broader endpoints:
	
- Other (seronegative) rheumatoid arthritis, wide
 - Rheumatoid arthritis
 - Rheumatoid arthritis , including avohilmo
 - Polyarthropathies
 - Finngen Rheumatological endpoints
 
		
		Narrower endpoints:
	
None
Case counts by codes
↥Summary Statistics
↥-FinRegistry-
Key figures
| All | Female | Male | |
|---|---|---|---|
| Number of individuals | |||
| Whole population | 32653 | 23007 | 9442 | 
| Only index persons | 27640 | 19750 | 7890 | 
| Unadjusted period prevalence (%) | |||
| Whole population | 0.54 | 0.66 | 0.26 | 
| Only index persons | 0.60 | 0.73 | 0.30 | 
| Median age at first event (years) | |||
| Whole population | 58.77 | 58.03 | 60.42 | 
| Only index persons | 56.74 | 56.04 | 58.50 | 
-FinnGen-
Key figures
| All | Female | Male | |
|---|---|---|---|
| Number of individuals | 4192 | 2959 | 1233 | 
| Unadjusted period prevalence (%) | 1.11 | 1.28 | 0.68 | 
| Median age at first event (years) | 54.66 | 52.82 | 59.09 | 
-FinRegistry-
Age distribution of first events
-FinnGen-
Age distribution of first events
-FinRegistry-
Year distribution of first events
-FinnGen-
Year distribution of first events
-FinRegistry-
Cumulative Incidence Function
-FinnGen-
Cumulative Incidence Function
Mortality – FinRegistry
↥Relationships between endpoints
↥Index endpoint: RHEUMA_SERONEG – Seronegative rheumatoid arthritis
GWS hits: 4
                
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