Table 2 Comparison of clinical data between long-term ischemic mitral regurgitation (IMR) group and non-IMR group
Baseline characteristics | IMR group, n = 144 | non-IMR group, n = 168 | P value |
|---|---|---|---|
Demographics | |||
 Age (years)* | 63 (54,74) | 61 (48,69) | 0.023 |
 Gender: male, n (%) | 92 (64.8) | 123 (72.4) | 0.155 |
 Smoking, n (%) | 89 (62.7) | 123 (72.4) | 0.068 |
 Hypertension, n (%) | 97 (68.3) | 108 (63.5) | 0.376 |
 Diabetes mellitus, n (%) | 50 (35.2) | 37 (21.8) | 0.008 |
 Killip classification ≥ II, n (%) | 46 (32.4) | 29 (17.1) | 0.002 |
 MACEs in hospital, n (%) | 54 (38.0) | 34 (20.0) |  < 0.001 |
Laboratory parameters | |||
 Hemoglobin (g/L)* | 138.47 ± 19.99 | 146.57 ± 15.37 |  < 0.001 |
 Neutrophil count (109/L)* | 7.55 (5.57,10.26) | 5.94 (4.14,8.60) |  < 0.001 |
 Lymphocyte count (109/L)* | 1.57 (1.12,2.28) | 1.99 (1.53,3.02) |  < 0.001 |
 Monocyte count(109/L) | 0.66 (0.47,0.92) | 0.62 (0.48,0.84) | 0.805 |
 Platelet (109/L)* | 215 (171,250) | 205 (164,242) | 0.136 |
 SII/100* | 8.86 (6.15,18.24) | 6.18 (2.95,9.39) |  < 0.001 |
 Albumin (g/L)* | 37.46 ± 4.15 | 38.59 ± 3.86 | 0.014 |
 C-reactive protein (mg/L)* | 10.27 (4.85,32.63) | 6.83 (2.30,18.15) | 0.005 |
 Uric acid (μmol/L)* | 371 (306,471) | 381 (305,440) | 0.841 |
 Cystatin C (mg/L)* | 0.92 (0.80,1.16) | 0.89 (0.76,1.06) | 0.151 |
 Serum creatinine (μmol/L)* | 74.00 (63.00,87.00) | 73.00 (63.00,84.00) | 0.387 |
 Urea (μmol/L)* | 5.71 (4.65,7.23) | 5.11 (4.25,6.31) | 0.004 |
 Glucose (mmol/L)* | 6.28 (6.40,8.42) | 5.90 (5.16,7.65) | 0.051 |
 β2-microglobulin (mg/L)* | 1.86 (1.40,2.61) | 1.78 (1.41,2.36) | 0.364 |
 LDL cholesterol (mmol/L)* | 2.64 (2.21,3.13) | 2.60 (2.09,3.06) | 0.594 |
 HDL cholesterol (mmol/L)* | 1.05 (0.92,1.17) | 1.01 (0.87,1.14) | 0.076 |
 Lp(a) (mg/L)* | 135.90 (60.78,242.60) | 115.00 (50.50,285.50) | 0.604 |
 Triglyceride (mmol/L) | 1.44(0.98,2.11) | 1.53 (1.06,2.10) | 0.450 |
 Total cholesterol (mmol/L)* | 4.42 (3.72,4.96) | 4.37 (3.70,5.08) | 0.750 |
 Apolipoprotein A1 (g/L)* | 1.00 (0.85,1.06) | 0.95 (0.81,1.04) | 0.179 |
 Apolipoprotein B (g/L)* | 0.87 (0.70,1.03) | 0.86 (0.68,1.05) | 0.961 |
 Myoglobin (ng/mL)* | 62.10 (23.05,216.36) | 41.30 (15.60,148.32) | 0.045 |
 Troponin I (ng/mL)* | 8.60 (0.77,26.22) | 7.38 (1.20,26.22) | 0.856 |
 D-dimer (mg/L)* | 0.37 (0.23,0.80) | 0.31 (0.18,0.52) | 0.012 |
 Fibrinogen (g/L)* | 3.28 (2.80,4.00) | 2.99 (2.39,3.65) | 0.006 |
Angiographic characteristics | |||
 Gensini score* | 63.00 (40.75,80.25) | 50.00 (34.00,77.38) | 0.011 |
 LVEF on admission (%) | 58 (57,60) | 60 (58,62) | 0.003 |
 Number of diseased arteries ≥ 2, n (%) | 110 (77.5) | 119 (70.0) | 0.137 |