Table 2.
Propensity score matching of the impact of imaging modalities .
| Variables | Angiography alone | Intra-vascular imaging | P-value |
|---|---|---|---|
| N = 598 | N = 598 | ||
| Characteristics | |||
| Male | 493 (82.4%) | 486 (81.3%) | 0.971 |
| Age | 62.8 ± 11.4 | 62.1 ± 9.7 | 0.579 |
| Hypertension | 287 (48.0%) | 257 (43.0%) | 0.442 |
| Diabetes | 102 (17.1%) | 116 (19.4%) | 0.621 |
| Hyperlipidaemia | 245 (40.9%) | 180 (30.1%) | 0.421 |
| CKD/ESRD | 163 (27.3%) | 148 (24.7%) | 0.784 |
| Smoker | 198 (33.1%) | 204 (34.1%) | 0.836 |
| Clinical presentation | |||
| NSTEMI | 365 (61.0%) | 346 (57.9%) | 0.862 |
| STEMI | 233 (39.0%) | 252 (42.1%) | 0.801 |
| Cardiac history | |||
| History of MI (>3M) | 30 (5.0%) | 35 (5.9%) | 0.701 |
| History of CHF | 42 (7.0%) | 37 (6.2%) | 0.643 |
| Prior PCI | 32 (5.4%) | 33 (5.5%) | 0.863 |
| LVEF (%) | 56.1 ± 9.5 | 55.6 ± 10.4 | 0.946 |
| No. vessel disease | 0.702 | ||
| Single | 299 (50.0%) | 279 (46.7%) | |
| Double | 208 (34.8%) | 235 (39.2%) | |
| Triple | 91 (15.2%) | 84 (14.0%) | |
| Target vessel | |||
| LM | 7 (1.2%) | 14 (2.3%) | 0.413 |
| LAD | 349 (58.4%) | 364 (60.9%) | 0.697 |
| LCX | 135 (22.6%) | 103 (17.2%) | 0.216 |
| RCA | 267 (44.6%) | 301 (50.3%) | 0.371 |
| No. of stents used | 1.6 ± 1.0 | 2.6 ± 1.1 | 0.261 |
| Stent length | 18.2 ± 6.1 | 22.1 ± 8.3 | <0.001 |
| DES | 450 (75.2%) | 458 (76.6%) | 0.912 |
| BMS | 148 (24.7%) | 140 (23.4%) | 0.892 |
| Laboratory data | |||
| T. Cholesterol (mg/dl) | 155.1 ± 32.5 | 158.1 ± 41.2 | 0.322 |
| LDL-C (mg/dl) | 90.1 ± 34.1 | 93.2 ± 35.2 | 0.431 |
| eGFR | 62.3 ± 24.1 | 58.1 ± 26.3 | 0.760 |
| HbA1c | 6.70 ± 1.49 | 6.84 ± 1.22 | 0.760 |
BMS, bare metal stent; CHF, congestive heart failure; CKD/ESRD, chronic kidney disease/end stage renal disease; DES, drug eluting stent; eGFR, estimated glomerular filtration rate; HbA1c, hemoglobin A1C; LAD, left anterior descending coronary artery; LCX, Left circumflex coronary artery; LDL-C, low density lipoprotein cholesterol; LM, left main coronary artery; LVEF, left ventricular ejection fraction; MI, myocardial infarction; NSTEMI, non ST segment elevation myocardial infarction; PCI, percutaneous coronary intervention; RCA, right coronary artery; STEMI, ST segment elevation myocardial infarction.