Table 1 Clinical Characteristics of Responders and Non-Responders

Sex (% Female)

22.2%

20.7%

0.322

Age Category (% per Quintile)

   30–57 years

25.0%

36.3%

   58–65 years

25.0%

24.8%

   66–75 years

25.0%

20.6%

<0.001

   >75 years

25.0%

18.3%

Pulmonary disease

6.9%

6.3%

0.514

Cerebrovascular Disease

4.8%

5.9%

0.198

Renal Disease

1.7%

1.6%

0.849

Congestive Heart Failure

10.5%

11.4%

0.413

Dialysis

1.0%

0.90

0.844

Hypertension

53.6%

56.8%

0.081

Hyperlipidemia

47.9%

46.5%

0.442

Liver/Gastrointestinal Disease

2.9%

3.6%

0.313

Malignancy

3.3%

2.2%

0.085

Prior Myocardial Infarction

43.2%

45.9%

0.144

Peripheral Vascular Disease

7.5%

8.2%

0.495

Diabetes Mellitus

18.0%

23.7%

<0.001

Left Ventricular Ejection Fraction

   >50%

58.0%

59.1%

   <30%

4.4%

6.6%

   30–50%

24.6%

25.1%

0.001

   V-gram^c not done due to instability

2.7%

2.4%

   Missing

10.3%

6.7%

Coronary Anatomy

   2 Vessel Disease

37.1%

39.1%

   3 Vessel Disease

50.0%

50.0%

0.124

   Left Main Disease

12.9%

10.5%

Treatment within 1^st year following Index catheterization

   Medical Management

26.7%

35.1%

   CABG ^a

38.6%

32.6%

<0.001

   PCI with/without stent ^b

34.7%

32.4%