Characteristics of patients diagnosed with GCA or GPA between 1997 and 2015 and of matched population controlsa.
| Characteristics | GCA | GPA | ||
|---|---|---|---|---|
| Patients Population | Controls | Patients Population | Controls | |
| No. | 1682 | 15,138 | 342 | 3078 |
| Men, % | 498 (29.6) | 4482 (29.6) | 172 (50.3) | 1548 (50.3) |
| Age at date of study inclusionb, yrs, median (IQR) | 74 (68–79) | 74 (68–79) | 55 (43–65) | 55 (43–65) |
| Yrs of followup for DM, median (IQR)c | 6.5 (2.6–10.4) | 6.2 (3.0–10.6) | 5.8 (1.7–10.6) | 7.0 (2.7–11.1) |
| Person-yrs of followup | 11.647 | 107.398 | 2263 | 23.082 |
| Persons with new-onset DM during followup, n | 148 | 867 | 28 | 139 |
↵a Each patient was matched with 9 population controls.
↵b As defined in text.
↵c Followup began at date of study inclusion and continued until date of new-onset DM, death, emigration, or loss to followup, or until June 30, 2015, whichever came first. GCA: giant cell arteritis; GPA: granulomatosis with polyangiitis; IQR: interquartile range; DM: diabetes mellitus.