Characteristics and age of all women and men with incident rheumatoid arthritis diagnosed between 1955 and 2007, in Olmsted County, Minnesota.
| Women | Men | |||||
|---|---|---|---|---|---|---|
| All | ≥ 50 yrs | < 50 yrs | All | ≥ 50 yrs | < 50 yrs | |
| n | 822 | 514 | 308 | 349 | 239 | 110 |
| Mean age at diagnosis, mean yrs ± SD | 56 ± 16 | 66 ± 10 | 40 ± 8 | 58 ± 14 | 65 ± 9 | 41 ± 7 |
| Rheumatoid factor positive, ever, n (%) | 523 (64) | 325 (63) | 198 (64) | 235 (67) | 148 (62) | 87 (79) |
| Rheumatoid nodules, ever, n (%) | 261 (32) | 157 (31) | 104 (34) | 130 (37) | 75 (31) | 55 (50) |
| Erosions/destructive disease, ever, n (%) | 447 (54) | 290 (56) | 157 (51) | 176 (50) | 112 (47) | 64 (58) |
| Oral glucocorticoids, ever, n (%) | 542 (66) | 317 (62) | 225 (73) | 252 (72) | 167 (70) | 85 (77) |