Baseline characteristics of the coronary artery aneurysm population
| Variable (n=1397) | No (%) |
| Age (years) (mean±SD) | 37.76±31.45 |
| Age group (years) | |
| <20 | 586 (41.9) |
| 20–64 | 430 (30.8) |
| ≥65 | 381 (27.3) |
| Gender | |
| Men | 957 (68.5) |
| Women | 440 (31.5) |
| Area | |
| North | 546 (39.1) |
| Central | 518 (37.1) |
| South | 307 (22.0) |
| East | 26 (1.9) |
| Urbanisation | |
| Urbanised | 1019 (72.9) |
| Rural | 378 (27.1) |
| Income group* | |
| Low | 1030 (73.7) |
| High | 367 (26.3) |
*Income group was defined by the individual average monthly income during a 1 year period before the index date, and classified as low (<NTD$20 000) and high (≥ NT$20 000).