Many genes are thought to contribute to rheumatoid arthritis (RA). This study will attempt
to identify genes that may contribute to RA.
The identification of genes for complex disorders such as RA requires large numbers of
genetically informative families. This study enrolls people diagnosed with with RA and
This study will enroll 1000 RA patients and their parents. Participants with RA will be
evaluated at his or her doctor's office or other location convenient for the participant.
Participants will have a brief phone interview with a study coordinator and a blood sample
will be obtained. Disease evaluation will be done at one visit and will include confirmation
of diagnosis, a 28 joint count, joint alignment and mobility score (JAMS) and administration
of a health assessment questionnaire.
- Adult onset RA
- Diagnosis of RA made between 18 and 60 years old
- Both parents alive and willing to participate
- Parents may have diagnosis of RA (affected) or be unaffected
- Inflammatory bowel disease
- Psoriatic arthritis