Table 1 Patient and procedural chracteristics

Age [years]

71.9 (64.8 – 78.3)

66.7 (57.4 – 73.5)

<0.001

 Diabetes mellitus

26.5% (5868/22154)

20.2% (11537/57209)

<0.001

1.43 (1.38–1.48)

 Previous CABG

8.2% (1885/22880)

13.0% (7721/59200)

<0.001

0.60 (0.57–0.63)

 Previous PCI

28.2% (6419/22747)

34.7% (20432/58861)

<0.001

0.74 (0.72–0.76)

 Renal disease

13.6% (2977/21943)

13.3% (7510/56639)

0.255

1.03 (0.98–1.07)

 STEMI

18.2% (4182/22946)

19.3% (11478/59358)

<0.001

0.95 (0.91–0.99)

 NSTE-ACS

29.3% (6721/22946)

27.6% (16370/59358)

1.07 (1.04–1.11)

 Stable CAD

52.5% (12043/22946)

53.1% (31510/59358)

1^a

 Cardiogenic shock

1.7% (388/22945)

1.5% (894/59355)

0.055

1.12 (0.99–1.27)

 Symptoms of HF

5.6% (1296/22945)

5.0% (2952/59355)

<0.001

1.14 (1.07–1.22)

 Center volume stents/year

1150 ± 613

1156 ± 623

0.364

 RCA

35.0% (8039/22946)

34.5% (20508/59358)

0.190

1.02 (0.99–1.05)

 LAD

45.9% (10526/22946)

41.0% (24358/59358)

<0.001

1.22 (1.18–1.26)

 CX

23.6% (5412/22946)

26.9% (15972/59358)

<0.001

0.84 (0.81–0.87)

 Left main stem

2.2% (504/22946)

2.6% (1538/59358)

0.001

0.84 (0.76–0.93)

 Bypass graft

1.8% (416/22946)

3.5% (2107/593258)

<0.001

0.50 (0.45–0.56)

 Implanted stents per PCI

1.40 ± 0.75

1.42 ± 0.76

<0.001

 In-stent restenosis

6.5% (1499/22914)

7.3% (4300/59293)

<0.001

0.90 (0.84–0.95)

 Complex stenosis (≥ B2)

66.6% (15032/22579)

68.3% (39860/58402)

<0.001

0.93 (0.90–0.96)