Table 1.
Baseline and procedural characteristics according to sex
| Total (n = 866) | Women (n = 278) | Men (n = 588) | P* | |
|---|---|---|---|---|
| Age (years), mean ± SD | 67.60 ± 9.82 | 70.00 ± 9.03 | 66.46 ± 9.98 | < 0.001 |
| Low-incomea | 648 (73.5) | 235 (84.5) | 413 (70.2) | < 0.001 |
| Lower educationb | 521 (59.1) | 181 (65.1) | 340 (57.8) | 0.041 |
| BMI (kg/m2), mean ± SD | 22.24 ± 2.93 | 21.96 ± 3.09 | 22.37 ± 2.85 | 0.056 |
| Presentation | ||||
| STEMI | 114 (12.9) | 27 (9.7) | 87 (14.8) | 0.039 |
| NSTEMI | 136 (15.4) | 47 (16.9) | 89 (15.1) | 0.504 |
| Unstable angina | 214 (24.3) | 74 (26.6) | 140 (23.8) | 0.371 |
| ACS | 464 (52.6) | 148 (53.2) | 316 (53.7) | 0.890 |
| Stable CAD | 402 (45.6) | 130 (46.8) | 272 (46.3) | |
| Medical history | ||||
| Hypertension | 578 (65.5) | 208 (74.8) | 370 (62.9) | 0.001 |
| Diabetes mellitus | 238 (27.0) | 94 (33.8) | 144 (24.5) | 0.004 |
| Hyperlipidaemia | 270 (30.6) | 106 (38.1) | 164 (27.9) | 0.002 |
| Prior cerebral vascular disease | 121 (13.7) | 38 (13.7) | 83 (14.1) | 0.860 |
| Current smoking | 108 (12.2) | 1 (33.3) | 107 (25.6) | 0.760 |
| Previous CABG | 11 (1.2) | 0 (0.0) | 11 (1.9) | 0.022 |
| Previous PCI | 309 (35.0) | 80 (28.8) | 229 (38.9) | 0.004 |
| Tests prior to PCI | ||||
| Left ventricular ejection fraction ≤ 40% | 86 (9.8) | 24 (9.4) | 62 (12.0) | 0.292 |
| Moderate to severe renal impairment a | 15 (1.7) | 3 (1.1) | 12 (2.1) | 0.311 |
| Procedural characteristics | ||||
| Radial access | 685 (77.7) | 220 (79.1) | 465 (79.1) | 0.985 |
| Left main disease | 93 (10.5) | 17 (6.1) | 76 (12.9) | 0.003 |
| Lesion type B2 and C | 822 (93.2) | 263 (94.6) | 559 (95.1) | 0.772 |
| ≥ 2 Stents per lesion | 359 (40.7) | 105 (37.8) | 254 (43.2) | 0.130 |
| PCI with ≥ 2 lesions | 182 (20.6) | 57 (20.5) | 125 (21.3) | 0.799 |
| Stent used | 856 (97.1) | 276 (99.3) | 580 (98.6) | 0.410 |
| Balloon used only | 3 (0.3) | 1 (0.4) | 2 (0.3) | 0.963 |
| Procedural success | 860 (97.5) | 277 (99.6) | 583 (99.1) | 0.416 |
| In hospital major bleeding | 15 (1.7) | 8 (2.9) | 7 (1.2) | 0.076 |
BMI body mass index, STEMI ST-elevation myocardial infraction, NSTEMI non-ST-elevation myocardial infraction, CABG coronary artery bypass grafts, PCI percutaneous coronary intervention
*Based on the χ2 test
aIndividual monthly income < 216 USD with the exchange rate of 23.150 VND
bEducation from primary to high school