Table 1 Comparison of clinical data between ischemic mitral regurgitation (IMR) group and non-IMR group in hospital

Demographics

 Age (years)*

63 (52,73)

59 (48,69)

 Gender: male, n (%)

126 (69.6)

113 (70.2)

 Smoking, n (%)

115 (63.5)

119 (73.9)

 Hypertension, n (%)

118 (65.2)

110 (68.3)

 Diabetes mellitus, n (%)

58 (32.0)

37 (23.0)

 Killip classification ≥ II, n (%)

51 (28.2)

29 (18.0)

 MACEs in hospital, n (%)

65 (35.9)

32 (19.9)

Laboratory parameters

 Hemoglobin (g/L)*

139 (130,154)

148 (140,158)

 Neutrophil count (10⁹/L)*

7.31 (5.44,10.74)

6.03 (4.17,8.20)

 Lymphocyte count (10⁹/L)*

1.70 (1.13,2.44)

1.94 (1.42,2.86)

 Monocyte count(10⁹/L)

0.66 (0.47,0.91)

0.62 (0.49,0.82)

 Platelet (10⁹/L)*

210 (170,242)

207 (161,250)

 SII/100*

8.47 (5.13,15.90)

6.46 (2.72,9.65)

 Albumin (g/L)*

37.30 (34.85,40.30)

38.70 (36.05,41.05)

 C-reactive protein (mg/L)*

9.84 (4.40,33.60)

6.50 (1.99,14.31)

 Uric acid (μmol/L)*

377 (306,444)

371 (308,446)

 Cystatin C (mg/L)*

0.92(0.76,1.13)

0.89 (0.76,1.07)

 Serum creatinine (μmol/L)*

73.00 (63.00,85.00)

72.00 (61.00,83.00)

 Urea (μmol/L)*

5.25 (4.38,6.70)

5.27 (4.41,6.37)

 Glucose (mmol/L)*

6.16 (5.23,8.18)

6.18 (5.36,7.69)

 β₂-microglobulin (mg/L)*

1.78 (1.41,2.37)

1.86 (1.29,2.45)

 LDL cholesterol (mmol/L)*

2.62 (2.16,3.14)

2.60 (2.07,3.10)

 HDL cholesterol (mmol/L)*

1.02 (0.89,1.17)

1.02 (0.84,1.14)

 Lp(a) (mg/L)*

143.00 (55.00,267.00)

111.00 (59.00,248.00)

 Triglyceride (mmol/L)*

1.54 (0.98,2.02)

1.55 (1.14,2.28)

 Total cholesterol (mmol/L)*

4.40 (3.76,4.90)

4.38 (3.67,5.11)

 Apolipoprotein A1 (g/L)*

0.96 (0.83,1.04)

0.97 (0.82,1.06)

 Apolipoprotein B (g/L)*

2.09 ± 1.24

2.05 ± 1.07

 Myoglobin (ng/mL)*

63.00 (22.83,218.03)

37.90 (15.89,124.85)

 Troponin I (ng/mL)*

9.30 (1.26,26.22)

5.09 (0.56,22.88)

 D-dimer (mg/L)*

0.38 (0.22,0.75)

0.28 (0.17,0.49)

 Fibrinogen (g/L)*

3.28 (2.67,3.89)

2.91 (2.41,3.66)

Angiographic characteristics

 Gensini score*

63.00 (39.00,82.50)

48.00 (32.00,72.50)

 LVEF on admission (%)

58 (57,61)

60 (58,62)

 Number of diseased arteries ≥ 2, n (%)

138 (76.2)

112 (69.6)