Table 1.
Patient Characteristics at Baseline
| Symptomatic (n=571) |
Asymptomatic (n=644) |
P value | |
|---|---|---|---|
| AgeA (years) | 70.3±9.1 | 70.1±10.1 | 0.65 |
| Male sexA | 410 (71.8) | 496 (77.0) | 0.04 |
| HypertensionA | 442 (77.4) | 487 (75.6) | 0.50 |
| DiabetesA | 236 (41.3) | 231 (35.9) | 0.052 |
| DyslipidemiaA | 379 (66.4) | 399 (62.0) | 0.12 |
| Current smokerA | 186 (32.6) | 199 (30.9) | 0.54 |
| HemodialysisA | 28 (4.9) | 35 (5.4) | 0.70 |
| Prior MIA | 130 (22.8) | 225 (34.9) | <0.001 |
| Prior PCIA | 295 (51.7) | 432 (67.1) | <0.001 |
| Prior CABGA | 18 (3.2) | 14 (2.2) | 0.37 |
| Prior strokeA | 49 (8.6) | 69 (10.7) | 0.24 |
| Multivessel diseaseA | 63 (11.0) | 73 (11.3) | 0.93 |
| Medication at discharge | |||
| Antiplatelet therapy | 474 (83.0) | 541 (84.0) | 0.64 |
| Aspirin | 444 (77.8) | 490 (76.1) | 0.50 |
| Thienopyridine | 286 (50.1) | 337 (52.3) | 0.46 |
| Anti-angina drugs | 430 (75.3) | 470 (73.0) | 0.36 |
| β-blocker | 169 (29.6) | 235 (36.5) | 0.01 |
| CCB | 307 (53.8) | 323 (50.2) | 0.23 |
| Nitrate | 123 (21.5) | 56 (8.7) | <0.001 |
| Statin | 349 (61.1) | 437 (67.9) | 0.02 |
| Oral hypoglycemic agent | 154 (27.0) | 168 (26.1) | 0.75 |
| Insulin | 33 (5.8) | 23 (3.6) | 0.08 |
Categorical variables are given as n (%), continuous variables are given as the mean±SD. AVariables used for multivariable and inverse provability weighted Cox models comparing hazard ratios of asymptomatic and symptomatic patients for the study endpoints (Table 3 and Table 4). CABG, coronary artery bypass grafting; CCB, calcium channel blocker; MI, myocardial infarction; PCI, percutaneous coronary intervention.