Skip to main content

Table 1 Alberta patient characteristics by tertile of catheterization rate for time period 1 and time period 2

From: A multi-region assessment of population rates of cardiac catheterization and yield of high-risk coronary artery disease

  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       
   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       
   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