Table 1.

Demographic characteristics of the patient collective with pre-existing conditions and the degree of vessel calcifications

	All	Stent-graft	Native vessel	P
Number	18	10	8	–
Age [years]	67 ± 9	70 ± 8	63 ± 8	.07
Sex [m/f]	9/8	7/3	3/5	.17
Body mass index [kg/m2]	26.5	26.9	26.0	.68
Pre-existing conditions [%]
Arterial hypertension	94	90	100	.30
Coronary artery disease	39	30	50	.36
Cardiac arrhythmia	22	20	25	.80
Stroke	11	20	0	.18
Peripheral artery disease	56	70	38	.17
Renal insufficiency	50	50	50	.61
Diabetes	17	30	0	.09
Smoking	72	80	63	.41
Vessel calcification [%]
None	0	0	0	.86
Moderate	39	30	50
Severe	61	70	50
Lesion age [%]
Acute (< 2 weeks)	22	20	25	.68
Subacute (2–4 weeks)	56	50	63
Chronic (> 4 weeks)	22	30	13

Statistical differences are given for the comparison between the two subgroups. A P value of < .05 was considered statistically significant. Continuous values are given as mean ± standard deviation