Table 1 Baseline characteristics of included patients

Total study population

1939

Mean follow-up (years)

17.2 (5.6)

Mean (SD) age (years)

63.7 (9.5)

Female

585 (30.2%)

Mean (SD) body mass index (mg/kg2)

27.5 (8.2)

Body mass index not recorded

178 (9.2%)

Diabetes

346 (18.7%)

Presence of diabetes not recorded

85 (4.4%)

Renal impairment

Normal, (CC > 85 ml/min)

814 (47.9%)

Moderately impaired (50–85 ml/min)

743 (43.8%)

Severely impaired (< 50 ml/min) off dialysis

132 (7.8%)

On dialysis

9 (0.5%)

Renal impairment not recorded

241 (12.4%)

COPD

73 (7.3%)

COPD not recorded

940 (48.5%)

Extracardiac arteriopathy

83 (8.3%)

Extracardiac arteriopathy not recorded

936 (48.3%)

Previous stroke

32 (3.7%)

Previous stroke not recorded

1077 (55.5%)

Ejection fraction

Normal

204 (72.1%)

30–50%

71 (25.1%)

< 30%

8 (2.8%)

Ejection fraction not recorded

1656 (85.4%)

MI last 90 days

298 (29.7%)

Prior MI not recorded

934 (48.2%)

Previous PCI

384 (40.3%)

Previous PCI not recorded

985 (50.8%)

Euroscore

0–2

671 (50.4%)

3–5

470 (35.3%)

 > 5

191 (14.3%)

Euroscore not recorded

607 (31.3%)

30 day mortality

22 (1.1%)