Table 1 Baseline characteristics

Age (years)

65.27 ± 8.9

66.15 ± 8.63

0.57

Men, n (%)

42 (63.6)

51 (77.3)

0.13

Body mass index (kg/m2)

26.6 ± 3.5

26.6 ± 4.2

0.94

 Diabetes

29 (43.9)

27 (40.9)

0.73

 Insulin therapy

3 (4.5)

4 (9.1)

0.49

 Hypertension

42 (63.6)

41 (62.1)

0.86

 Smoking

19 (28.8)

19 (28.8)

1

 Dyslipidemia

31 (47)

28 (40.9)

0.48

 Peripheral artery disease

2 (3)

7 (10.6)

0.16

 Prior coronary artery disease

32 (48.5)

38 (56.1)

0.38

 Prior myocardial infarction

10 (15.2)

10 (15.2)

1

 Prior percutaneous coronary intervention

4 (6.1)

4 (6.1)

1

 Current percutaneous coronary intervention

15 (22.7)

12 (18.2)

0.52

 Prior coronary artery bypass graft surgery

3 (4.5)

10 (15.2)

0.04

 Baseline eGFR (mL/min/1.73 m²)

42.77 ± 9.46

41.86 ± 8.16

0.55

 Baseline hemoglobin (g/dL)

12.44 ± 1.94

11.91 ± 1.98

0.12

 Baseline cystatin C (mg/dL)

1.42 (1.1–1.86)

1.58 (1.3–2)

0.17

 Baseline serum creatinine (mg/dL)

1.5 (1.4–1.6)

1.5 (1.4–1.73)

0.42

Volume of contrast medium (mL)

100 (80–116)

90 (80–112.5)

0.35

Left ventricular ejection fraction

50 (53.75–55)

50 (40–55)

0.88

 > 45%

50 (75.8%)

46 (69.7%)

 30–44%

10 (15.2%)

9 (13.6%)

 < 30%

6 (9.1%)

11 (16.7%)

0.97

 Mean (Q₁-Q₃)

9 (6–13)

10 (7–13.25)

0.3

  ≤ 5

9 (13.6%)

4 (6.1%)

 6–10

30 (45.5%)

30 (45.5%)

  ≥ 11

27 (40.9%)

32 (48.5%)

0.3