Table 6.

Annual event rate of outcomes during follow–up of patients with vertebral artery origin stenosis or acute lacunar infarcts

	Annual event rate, per 100 patient-years units (95% CI)		P-value
	Vertebral artery origin stenosis (n = 137)	Acute lacunar infarcts (n = 169)
All stroke	4.86 (2.93–8.06)	3.38 (1.41–8.13)	0.486
Unstable angina/myocardial infarction	1.30 (0.49–3.45)	2.71 (1.02–7.21)	0.293
Vascular death	1.30 (0.49–3.45)	1.35 (0.34–5.41)	0.960
Composite cardiovascular outcome	6.80 (4.43–10.43)	6.77 (3.64–12.58)	0.990

Published data of patients who had acute lacunar infarcts were used for the comparison; data used with personal permission [14].