Table 4 Proportional hazard Cox regression using intervention-based data on 85 primary angioplasties and 20 primary elective and salvage stenting. Enter model. ^aFor categorical variables, the first category is used as reference

Age

- 0.008

0.013

0.981

0.96 – 1.01

0.545

Sex

0.652

0.360

1.92

0.947 – 3.8

0.07

Diabetes

- 0.37

0.41

0.69

0.31 – 1.56

0.311

CA Duplication

0.9

0.49

0.66

0.25 – 1.73

0.84

25–50% stenosis^a

- / -

0.49

- / -

- / -

0.187

50–75% stenosis

1.65

0.51

1.12

0.64 – 42.1

0.121

 > 75% stenosis

1.85

0.434

6.4

0.84 – 48.7

0.073

Type A^a

- / -

0.653

- / -

- / -

0.237

Type B

-0.523

0.678

0.6

0.57 – 2.24

0.44

Type C

0.343

0.648

1.41

0.396 – 5.1

0.064

Type D

-0.180

0.595

0.835

0.239 – 2.91

0.778

Angulation between ascending and descending segments (alpha angle)

- 0.005

0.009

0.995

0.98 – 1.02

0.607

Peripheral stenosis

- 0.7

0.382

0.537

0.254 – 1.3

0.104

central vein stenosis

- 0.002

0.55

0.998

0.34 – 2.9

0.996