Table 4.
Use of angiography (n=79 374). Values are numbers (percentages) unless stated otherwise
| Interventional hospitals
|
Non-interventional hospitals
|
|||||
|---|---|---|---|---|---|---|
| Cardiologist | Non-cardiologist | Risk ratio* | Cardiologist | Non-cardiologist | Risk ratio* | |
| Age (years): | ||||||
| <55 | 1445/1773 (81.5) | 600/747 (80.3) | 1.01 | 1954/3668 (53.3) | 2750/5765 (47.7) | 1.12 |
| 55 to 64 | 1428/1854 (77.0) | 740/1022 (72.4) | 1.06 | 2037/4384 (46.4) | 3140/7615 (41.2) | 1.13 |
| 65 to 74 | 1484/2214 (67.0) | 868/1506 (57.6) | 1.16 | 2225/5581 (39.9) | 3461/10 578 (32.7) | 1.22 |
| 75 to 84 | 845/2040 (41.4) | 554/1865 (29.7) | 1.39 | 1085/4898 (22.2) | 1992/13 397 (14.9) | 1.49 |
| ≥85 | 73/555 (13.2) | 57/955 (6.0) | 2.20 | 85/1500 (5.7) | 225/6114 (3.7) | 1.54 |
| Age missing | 33/56 (58.9) | 40/74 (54.1) | 1.09 | 83/231 (35.9) | 227/982 (23.1) | 1.55 |
| Total | 5308/8492 (62.5) | 2859/6169 (46.3) | 1.35 | 7469/20 262 (36.9) | 11 795/44 451 (26.5) | 1.39 |
| Inter-hospital: median (IQR) | 73 (52-85) | 51 (26-68) | 31 (17-53) | 23 (12-40) | ||
IQR=interquartile range.
*
Risk ratio of angiography being done for patients admitted under a cardiologist relative to those admitted under a non-cardiologist.