Table 2.
Comparison of baseline characteristics in two groups based on whether the IMH existed
| Non-IMH N = 220 |
IMH N = 89 |
Statistical value | P value | |
|---|---|---|---|---|
| Age, years, Median (IQR) | 57 [47;66] | 58 [49;66] | Z = −030 | 0.766 |
| Male, n (%) | 190 (86.40) | 76 (85.40) | X2 = 0.05 | 0.823 |
| Heart rate, bpm, Mean (SD) | 79 [69;86] | 80 [73;91] | Z = −1.74 | 0.081 |
| SBP, mmHg, Median (IQR) | 129 [121;142] | 126 [120;136] | Z = −1.26 | 0.208 |
| DBP, mmHg, Median (IQR) | 77 [71;81] | 79 [71;83] | Z = −1.38 | 0.169 |
| Hypertension, n (%) | 105 (47.70) | 45 (50.60) | X2 = 0.20 | 0.652 |
| Smoking history, n (%) | 104 (47.30) | 38 (42.70) | X2 = 0.53 | 0.465 |
| Killip level, n (%) | X2 = 1.78 | 0.182 | ||
| I | 211 (95.91) | 88 (98.88) | ||
| II | 9 (4.09) | 1 (1.12) | ||
| Medications | ||||
| ACEI/ARB, n (%) | 164 (74.50) | 71 (79.80) | X2 = 0.95 | 0.329 |
| Beta-blocker, n (%) | 200 (90.90) | 80 (89.90) | X2 = 0.08 | 0.780 |
| PCI procedure | ||||
| IRA, n (%) | X2 = 10.20 | 0.006 | ||
| LAD | 101 (45.90) | 58 (65.20) | ||
| LCX | 35 (15.90) | 12 (13.50) | ||
| RCA | 84 (38.20) | 19 (21.30) | ||
| Mutivessel Disease, n (%) | 117 (53.20) | 52 (58.40) | X2 = 0.70 | 0.402 |
| Stent diameter, mm, Median (IQR) | 3.00 [2.75;3.50] | 3.00 [2.50;3.50] | Z = −1.27 | 0.203 |
| Stent total length, mm, Median (IQR) | 29.00 [21.00;36.00] | 29.00 [23.00;35.00] | Z =−0.004 | 0.997 |
| IABP, n (%) | 1 (0.45) | 2 (2.25) | X2 = 5.00 | 0.200 |
| caIMR>40 U, n (%) | 19 (8.64) | 51 (57.30) | X2 = 85.65 | <0.001 |
| LVEF, %, Median (IQR) | 49.00 [40.00;55.20] | 39.00 [33.00;47.00] | Z = −5.52 | <0.001 |
| Laboratory data | ||||
| *Peak cTnT, ng/mL, Median (IQR) | 7.67 [6.54;8.42] | 8.51 [7.76;8.90] | Z = −5.04 | <0.001 |
| *CKMB, ng/mL, Median (IQR) | 4.48 [3.18;5.47] | 5.13 [3.96;5.70] | Z = −2.76 | 0.006 |
| *CRP, mg/L, Median (IQR) | 2.48 [1.51;3.32] | 2.87 [1.97;3.71] | Z = −2.02 | 0.044 |
| LDL-C, mmol/L, Median (IQR) | 2.61 [2.15;3.25] | 2.73 [2.14;3.15] | Z = −0.37 | 0.710 |
| SCr, µmol/L, Median (IQR) | 70.00 [62.00;79.00] | 70.00 [60.00;77.00] | Z = −1.03 | 0.304 |