Table 3. Univariate Cox regression analysis of patient demographics, co-morbidities, carotid artery disease characteristics and critical mechanical conditions in the symptomatic group.

	Hazard ratio	95% Confident interval	p value
Age	0.98	[0.94, 1.01]	0.296
Hypertension	1.76	[0.37, 8.35]	0.474
Diabetes mellitus	0.60	[0.13, 2.60]	0.500
Peripheral vascular disease	0.66	[0.08, 5.24]	0.696
Coronary artery disease	1.42	[0.18, 11.41]	0.739
ECST defined luminal stenosis	1.00	[0.93, 1.06]	0.886
Large lipid core	1.50	[0.44, 5.17]	0.529
Fibrous cap rupture	6.02	[0.77, 47.31]	0.031*
Haemorrhage	8.00	[1.02, 62.86]	0.010*
Stretch-P1 at diastole	9.08	[1.32, 62.31]	0.025*
Stretch-P1 at systole	7.65	[1.35, 43.32]	0.021*
Variation of Stretch-P1	31.08	[4.01, 965.11]	0.045*