At-risk participant characteristics
| Participant no | Gender | Age at interview (years) | CCP dental study* status | Smoking (ever/never) | MSK symptoms (Y/N) | Oral health symptoms† (Y/N) | First degree relative with RA (Y/N) |
| 1 | Female | 60 | Had assessment and accepted treatment | Never | Y | Y | N |
| 2 | Male | 41 | Had assessment and accepted treatment | Never | Y | Y | N |
| 3 | Female | 55 | Had assessment and accepted treatment | Never | Y | Y | N |
| 4 | Female | 56 | Had assessment and accepted treatment | Never | Y | N | N |
| 5 | Female | 50 | Had assessment, declined treatment | Ever | Y | Y | Y (grandmother) |
| 6 | Male | 42 | Had assessment and would accept treatment | Never | Y | Y | Y |
| 7 | Male | 53 | Had assessment and accepted treatment | Never | Y | N | N |
| 8 | Male | 70 | Had assessment and accepted treatment | Ever | N | Y | N |
| 9 | Female | 35 | Had assessment and would accept treatment | Ever | Y | N | N |
| 10 | Female | 62 | Had assessment and would accept treatment | Never | Y | Y | N |
| 11 | Female | 55 | Not approached | Never | Y | Y | N |
| 12 | Male | 61 | Not approached | Never | Y | Y | Unconfirmed (grandmother) |
| 13 | Male | 54 | Declined assessment | Ever | Y | Y | Y (grandfather) |
| 14 | Male | 38 | Had assessment, declined treatment | Ever | Y | Y | Y (mother) |
| 15 | Female | 40 | Had assessment and would accept treatment | Never | Y | Y | N |
| 16 | Male | 60 | Not approached | Ever | Y | Y | N |
| 17 | Female | 56 | Had assessment, accepted treatment | Ever | Y | Y | N |
| 18 | Male | 56 | Not approached | Never | Y | Y | Y (father) |
| 19 | Female | 52 | Declined assessment and treatment | Ever | Y | N | N |
*CCP dental study in which CCP+ at-risk participants are offered periodontal treatment.
†MSK/oral health symptoms within 9 months preceding the interview.
MSK, musculoskeletal; RA, rheumatoid arthritis.