Characteristics of patients with rheumatoid arthritis and frequency-matched controls (N=6882)
| n (%) | |||
|---|---|---|---|
| Variable | Cases 1147 (16.7) | Controls 5735 (83.3) | p Value |
| Sex | >0.999 | ||
| Male | 266 (23.2) | 1330 (23.2) | |
| Female | 881 (76.8) | 4405 (76.8) | |
| Age (years) | >0.999 | ||
| 20–29 | 68 (5.9) | 340 (5.9) | |
| 30–39 | 112 (9.8) | 560 (9.8) | |
| 40–49 | 257 (22.4) | 1285 (22.4) | |
| 50–59 | 326 (28.4) | 1630 (28.4) | |
| 60–69 | 204 (17.8) | 1020 (17.8) | |
| 70–79 | 139 (12.1) | 695 (12.1) | |
| 80–89 | 38 (3.3) | 190 (3.3) | |
| 90–99 | 3 (0.3) | 15 (0.3) | |
| Median (minimum–maximum) | 54 (20–93) | 53 (20–97) | 0.532 |
| Osteoarthritis | 497 (43.3) | 979 (17.1) | <0.001 |
| Osteoarthritis-related surgery | 47 (4.1) | 86 (1.5) | <0.001 |
| Diabetes mellitus | 153 (13.3) | 373 (6.5) | <0.001 |
Per cent are column percentages except in the header row where they are row percentages.