Table 1.
Demographic characteristics before and after propensity score matching.∗
| Variable | All patients | Propensity matched sample | ||||
|---|---|---|---|---|---|---|
| Without DM | With DM | P value | Without DM | With DM | P value | |
| Number of patients | 1490 | 816 | 578 | 578 | ||
| Age (years) | 58.71 ± 11.17 | 61.26 ± 10.54 | <0.001 | 59.99 ± 11.26 | 61.03 ± 10.34 | 0.237 |
| Sex (male) | 1077 (72.28%) | 567 (69.49%) | 0.156 | 409 (70.76%) | 404 (69.90%) | 0.748 |
| Hypertension | 697 (46.78%) | 487 (59.68%) | <0.001 | 337 (58.30%) | 359 (62.11%) | 0.186 |
| Hyperlipidemia | 391 (26.24%) | 309 (37.87%) | <0.001 | 200 (34.60%) | 219 (37.89%) | 0.245 |
| History of smoking | 490 (32.89%) | 267 (32.72%) | 0.936 | 207 (35.81%) | 202 (34.95%) | 0.758 |
| Renal insufficiency | 52 (3.49%) | 63 (7.72%) | <0.001 | 28 (4.84%) | 33 (5.71%) | 0.511 |
| Acute coronary syndrome | 1001 (67.18%) | 572 (70.10%) | 0.150 | 435 (75.26%) | 430 (74.39%) | 0.735 |
| Previous MI history | 146 (9.80%) | 89 (10.91%) | 0.400 | 63 (10.90%) | 65 (11.25%) | 0.851 |
| Previous PCI history | 406 (27.25%) | 292 (35.78%) | <0.001 | 190 (32.87%) | 210 (36.33%) | 0.216 |
| Previous CABG history | 28 (1.88%) | 19 (2.33%) | 0.465 | 12 (2.08%) | 12 (2.08%) | 1.000 |
| Family history of CAD | 265 (17.79%) | 166 (20.34%) | 0.132 | 127 (21.97%) | 122 (21.11%) | 0.721 |
| Previous stroke history | 146 (9.80%) | 204 (25.00%) | <0.001 | 99 (17.13%) | 121 (20.93%) | 0.099 |
| Peripheral artery disease | 119 (7.99%) | 177 (21.69%) | <0.001 | 81 (14.01%) | 104 (17.99%) | 0.065 |
| LVEF | 59.99 ± 7.55 | 58.95 ± 7.68 | 0.003 | 59.18 ± 7.61 | 59.25 ± 7.46 | 0.596 |
| Other vessel treated by DES only | 487 (32.68%) | 279 (34.19%) | 0.463 | 195 (33.74%) | 196 (33.91%) | 0.950 |
∗Plus–minus values are means ± SD. DM: diabetes mellitus; MI: myocardial infarction; PCI: percutaneous coronary intervention; CABG: coronary artery bypass grafting; CAD: coronary artery disease; LVEF: left ventricular ejection fraction; DES: drug-eluting stent.