Table 1 Baseline demographic and clinical characteristics

 Age, y, mean ± SD

63.4 ± 11.6

63.9 ± 11.9

63.2 ± 11.5

0.002

 Age≥75 yrs

17.8%

20.4%

16.8%

<0.001

 Women

30.3%

30.6%

30.2%

0.602

 BMI, kg/m², mean ± SD

25.89 ± 4.37

26.45 ± 4.60

25.67 ± 4.25

<0.001

 Current smoker

41.5%

41.9%

41.3%

0.507

 Alcohol consumption

46.7%

47.3%

46.5%

0.346

 Hypertension

60.8%

60.5%

60.8%

0.732

 Diabetes

32.7%

32.9%

32.5%

0.626

 Hyperlipemia

27.8%

29.2%

27.2%

0.008

 Chronic heart failure

16.3%

17.7%

15.8%

0.002

 Stroke

13.5%

14.3%

13.2%

0.055

 Peripheral vascular disease

3.9%

4.2%

3.8%

0.278

 Renal failure

5.6%

6.0%

5.4%

0.128

 Peptic ulcer

16.9%

18.7%

16.2%

<0.001

 HR, bpm, mean ± SD

69.3 ± 10.5

73.2 ± 10.4

67.7 ± 10.2

<0.001

 SBP, mmHg, mean ± SD

129.0 ± 13.8

126.1 ± 15.6

130.2 ± 12.8

<0.001

 DBP, mmHg, mean ± SD

74.9 ± 9.8

75.2 ± 9.7

74.8 ± 9.8

0.118

 HbA1c, %, mean ± SD

6.26 ± 1.82

6.19 ± 1.98

6.29 ± 1.76

0.033

 LDL-c, mmol/L, mean ± SD

2.82 ± 1.43

2.89 ± 1.43

2.78 ± 1.42

<0.001

 Hemoglobin, g/L, mean ± SD

131.4 ± 22.5

131.3 ± 22.6

131.4 ± 22.4

0.687

 eGFR, ml/min×1.73m², mean ± SD

87.1 ± 41.8

86.8 ± 41.2

87.3 ± 42.0,

0.874

 LVEF, %, mean ± SD

55.1 ± 11.5

54.8 ± 11.5

55.3 ± 11.5

0.016

 ACS

87.9%

87.5%

88.0%

0.424

 Multibranch coronary lesions

36.5%

40.2%

35.0%

<0.001

 Interventional therapy

57.7%

62.4%

55.9%

<0.001

 Length of stay; d, mean ± SD

8.03 ± 4.02

7.95 ± 3.79

8.07 ± 4.10

0.148

Hospital level

 Tertiary hospital

90.2%

90.7%

90.0%

0.201