Table 1. Clinical characteristics of the experimental dataset.
| Characteristics | Descriptive statistics | ||||
|---|---|---|---|---|---|
| All(N = 2702) | Alive (N = 2582) | Death(N = 120) | p-value | ||
| Basic clinical variables | |||||
| Age (years) | 65(57–72) | 65(57–71) | 72(64–78) | <0.001* | |
| Gender | Female | 495(18.3%) | 455(17.6%) | 40(33.3%) | <0.001* |
| Male | 2207(81.7%) | 2127(82.4%) | 80(66.7%) | <0.001* | |
| BMI | 24.0(22.7–26.0) | 24.0(22.7–26.1) | 24.0(22.8–24.6) | 0.026 | |
| Smoking | 1171(43.3%) | 1129 (43.9%) | 42(38.5%) | 0.343 | |
| Past medical history | |||||
| Diabetes | 794 (30.0%) | 748 (29.4%) | 46(42.6%) | 0.001 | |
| Hypertension | 1542 (57.5%) | 1473 (57.2%) | 69(65.1%) | 0.179 | |
| History of renal insufficiency | 26 (1.0%) | 20 (0.8%) | 6(5.7%) | <0.001* | |
| ECG | |||||
| Heart rate (bpm) | 68(61–76) | 68(61–76) | 75(60–86) | 0.042 | |
| Heart | |||||
| E ’wave rate | 0.06(0.04–0.07) | 0.06(0.04–0.07) | 0.03(0–0.05) | 0.610 | |
| LV ejection fraction | 63.3(55.1–68.6) | 63.5(55.7–68.8) | 38.1(0–61.0) | <0.001* | |
| LV mass index | 103.4(86.5–121.0) | 113.8(87.4–121.0) | 32(0–117.2) | 0.005 | |
| Blood test index | |||||
| Total cholesterol | 3.95(3.24–4.85) | 3.97(3.25–4.88) | 3.46(2.07–4.32) | 0.674 | |
| LDL cholesterol | 2.48(1.85–3.28) | 2.50(1.88–3.29) | 2.10(1.02–2.85) | 0.226 | |
| Triglycerides | 1.43(1.03–2.00) | 1.44(1.04–2.01) | 1.09(0.72–1.77) | 0.794 | |
| NT-proBNP | 129(37–538) | 125(37–486) | 641(9–3531) | 0.988 | |
| Apolipoprotein A | 1.19(1.04–1.33) | 1.20(1.05–1.34) | 0.94(0.70–1.19) | 0.692 | |
| Medical therapy | |||||
| Statins | 2099 (78.6%) | 2046 (79.5%) | 53(55.8%) | <0.001* | |
| Spironolactone | 252 (9.6%) | 234 (9.2%) | 18(19.8%) | <0.001* | |
| Aspirin | 2617 (98.2%) | 2528 (98.3%) | 89(95.7%) | <0.001* | |
| Coronary angiopathy variables | |||||
| Bifurcation position | 100(4.1%) | 96(4.1%) | 4(4.0%) | 0.391 | |
| CTO | 128(4.9%) | 119(4.8%) | 9(8.1%) | 0.015 | |
| Angulation | 3(0.1%) | 3(0.1%) | 0(0%) | <0.001* | |
| Calcification | 20(0.8%) | 20(0.8%) | 0(0%) | 0.011 | |
| Lesion type | 2610(96.6%) | 2501(96.9%) | 109(90.8%) | 0.272 | |
| Target vessel | 2640(97.7%) | 2528(97.9%) | 112(93.3%) | 0.001 | |
Note: The above structured data are all cases of ’yes’. BMI: body mass index; LV: left ventricle; NT-proBNP: N-terminal of the prohormone brain natriuretic peptide; ECG: electrocardiogram; LDL: low density lipoprotein. An asterisk (*) with a p-value less than 0.001 indicates a statistically significant difference in the variable between the survival and death groups. The information in the table is presented as n (%) and median value (IQR). The qualitative indicators of the data are expressed as the proportion of the population (missing values are not counted), and the quantitative indicators are expressed as the median and the first quartile (Q1) and third quartile (Q3) of the data (25–75%).