Patient characteristics
| Smokers | IBD | Renal failure | Controls | RA | ||
|---|---|---|---|---|---|---|
| Patients | Number | 374 | 433 | 85 | 120–187 | 557 |
| Age | Average (SD) | 65 (9) | 44 (14) | 54 (13) | 44 (14) | 57 (16) |
| Gender | Percentage female | 27 | 58 | 29 | 51 | 67 |
| Smoking | Percentage current | 42 | 21 | 24 | 8 | 23 |
| Pack years (average) | 39 | n.d. | n.d. | n.d. | n.d. |
For the controls, the values are given for the total group of 209 controls. For the assays, controls were randomly selected out of the group of 209 controls. Controls were not age matched or gender matched. We did not observe a correlation between anti-carbamylated protein antibodies and age or gender.
Data from patients with RA as in reference (1).
IBD, inflammatory bowel disease; n.d., not determined; RA, rheumatoid arthritis.