Table 1.
Clinical characteristics of the patients selected as predictors for the nomogram
| Variables | Training set | Testing set | ||||||
| All (n=396) |
Survival (n=264) | In-hospital mortality (n=132) | P value | All (n=459) |
Survival (n=368) | In-hospital mortality (n=91) | P value | |
| Age (years) (mean±SD) | 63.3±12.7 | 60.3±12.9 | 69.3±9.8 | <0.001 | 62.1±12.8 | 59.8±12.4 | 70.2±11.3 | <0.001 |
| BMI (kg/m2) | 25.8 (24.6, 26.1) | 26.0 (25.3, 26.5) | 24.9 (24.4, 25.5) | <0.001 | 25.4 (23.4, 27.3) | 25.5±3.0 | 25.3 (23.4, 27.5) | 0.047 |
| SBP on admission (median (IQR)) |
128 (110–146) | 133 (114–149) | 118 (100–140) | <0.001 | 125 (110–140) | 129±25 | 121 (107–135) | 0.009 |
| Long lesions (n (%)) | 245 (61.9) | 178 (67.4) | 67 (50.8) | 0.002 | 194 (42.3) | 131 (35.6) | 63 (69.2) | <0.001 |
| TIMI flow grade 0–1 before PCI (n (%)) | 311 (78.5) | 197 (74.6) | 114 (86.4) | 0.011 | 339 (73.9) | 274 (74.5) | 65 (71.4) | 0.556 |
| N/L ratio (median (IQR)) | 5.47 (2.82–10.00) | 4.70 (2.68–7.87) | 8.54 (3.19–11.46) | <0.001 | 6.15 (3.48–9.52) | 5.08 (3.65–9.46) | 9.1 (3.81–12.51) | <0.001 |
| HGB, g/L (median (IQR)) | 137.0 (126.0–269.0) | 142.0 (129.0–155.0) | 129.0 (119.0–137.3) | <0.001 | 137.2±19.8 | 138.5±19.1 | 131.9±21.5 | 0.004 |
| Random blood glucose on admission, mmol/L (median (IQR)) | 6.84 (5.47–9.92) | 5.95 (5.02–7.44) | 9.81 (7.96–11.04) | <0.001 | 6.73 (5.27–10.10) | 6.12 (5.10–8.10) | 10.96 (8.40–11.78) | <0.001 |
| EF after PCI (median (IQR)) | 51.0 (43.0–58.0) | 54.0 (47.8–59.0) | 43.0 (38.0–48.5) | <0.001 | 55 (46–60) | 56 (51–61) | 45 (37–53) | <0.001 |
| Use Aspirin on admission (n (%)) | 379 (95.7) | 262 (99.2) | 117 (88.6) | <0.001 | 404 (88.0) | 332 (90.2) | 72 (79.1) | 0.004 |
BMI, body mass index; EF, ejection fraction; HGB, haemoglobin; PCI, percutaneous coronary intervention; N/L ratio, neutrophils/lymphocytes ratio; SBP, systolic blood pressure; TIMI, thrombolysis in myocardial infarction.