Table 1 Alberta patient characteristics by tertile of catheterization rate for time period 1 and time period 2
| Â | Lowest (Regions 1,2,5) | Middle (Regions 6,8,9) | Highest (Regions 3,4,7) | |||
|---|---|---|---|---|---|---|
Characteristic (%) | Time period 1 (N = 5062) | Time period 2 (N = 5994) | Time period 1 (N = 16154) | Time period 2 (N = 19508) | Time period 1 (N = 23593) | Time period 2 (N = 25422) |
Mean Age (yrs.) | 63.5 | 63.8 | 62.5 | 62.2 | 62.4 | 62.1 |
Male | 69.4 | 69.6 | 71.3 | 70.3 | 68.5 | 70.1 |
Current Smoker | 24.6 | 25.8 | 27.5 | 29.6 | 25.6 | 26.2 |
Cerebrovascular disease | 6.7 | 7.1 | 6.2 | 6.4 | 6.7 | 6.8 |
Congestive Heart Failure | 14.4 | 14.6 | 15.5 | 14.7 | 14.3 | 14.2 |
COPD | 10.8 | 16.9 | 9.2 | 13.1 | 12.3 | 18.4 |
Diabetes | 19.3 | 24.0 | 20.1 | 24.4 | 18.8 | 22.6 |
Dialysis | 1.2 | 1.2 | 1.8 | 1.8 | 1.5 | 1.4 |
Hyperlipidemia | 50.1 | 76.1 | 48.7 | 72.0 | 48.3 | 72.5 |
Hypertension | 52.7 | 66.7 | 52.0 | 64.7 | 52.7 | 64.2 |
Lytic | 10.7 | 9.4 | 7.1 | 5.0 | 7.9 | 3.0 |
Liver/GI | 3.7 | 8.3 | 2.9 | 6.1 | 4.5 | 8.7 |
Malignancy | 4.1 | 4.4 | 2.9 | 3.0 | 4.4 | 4.7 |
Peripheral Vascular disease | 8.1 | 7.4 | 6.3 | 7.6 | 8.6 | 7.4 |
Previous CABG | 6.4 | 3.4 | 7.5 | 3.0 | 6.4 | 3.1 |
Previous PCI | 8.2 | 4.4 | 6.1 | 3.4 | 9.7 | 4.5 |
Indication for catheterization | Â | Â | Â | Â | Â | Â |
   Stable angina | 26.4 | 27.6 | 25.5 | 30.5 | 29.7 | 30.0 |
   Unstable angina | 30.3 | 22.1 | 29.2 | 18.1 | 29.6 | 21.2 |
   Myocardial infarct. | 30.0 | 37.4 | 28.5 | 37.2 | 27.3 | 35.9 |
   Other | 13.3 | 12.9 | 16.8 | 14.2 | 13.4 | 12.9 |
Coronary Anatomy | Â | Â | Â | Â | Â | Â |
   Normal | 20.3 | 25.9 | 21.2 | 26.7 | 25.9 | 29.7 |
   Low risk | 39.6 | 39.2 | 37.0 | 37.1 | 38.7 | 38.9 |
   2-vessel involving PLAD | 4.2 | 3.4 | 5.2 | 3.4 | 3.8 | 2.8 |
   3-vessel | 27.9 | 23.3 | 27.8 | 23.7 | 24.7 | 21.6 |
   Left Main | 8.0 | 7.3 | 8.8 | 7.0 | 7.0 | 6.4 |
Revasc. within 1 year | 54.0 | 54.5 | 51.8 | 55.0 | 50.3 | 51.0 |
CABG within 1 year | 22.9 | 16.7 | 21.9 | 17.2 | 18.8 | 14.8 |
PCI within 1 year | 32.5 | 38.7 | 31.5 | 39.1 | 33.0 | 37.4 |
Death within 1 year | 4.9 | 3.9 | 5.7 | 4.6 | 4.6 | 4.2 |