Table 3.

Comparison between the vascular events’ episodes between the study groups

	Total	Group 1	Group 2	p value
Total population	287	82	205
Thrombosis	27 (9.4%)	6 (7.3%)	21 (10.2%)	0.5871
Repeated thrombosis	2	0	2	1.0002
Avoidable thrombosis/total thrombosis3	9/27 (33%)	5/6 (83%)	4/21 (19%)	0.0041
Pre-emptive stenosis correction	63 (21.9%)	23 (28.1%)	40 (19.5%)	0.1551
Repeated stenosis	11	0	11	0.0381

¹Fisher’s exact test.

²χ²: Pearson’s chi-squared test, significant at p < 0.05.

³Avoidable thrombosis, i.e., referred for pre-emptive stenosis of correction but thrombosed while waiting for intervention.