Correlation between significant asymptomatic carotid artery stenosis and severity of peripheral arterial occlusive disease in the lower limb: a retrospective study on 200 patients

Table 2 The incidence rate of significant ACAS increased with the stage of lower limb PAOD

Lower limb PAOD	ACAS (%)^a		Total number	P-value^b	Odds ratios (95% confidence interval)
Lower limb PAOD	Non-significant	Significant	Total number	P-value^b	Odds ratios (95% confidence interval)
Stage IIA	72 (90.0%)	8 (10.0%)	80	< 0.001*	0.362 (0.188–0.695)
Stage IIB	52 (81.3%)	12 (18.8%)	64	0.277	0.751 (0.440–1.284)
Stage III	18 (54.6%)	15 (45.5%)	33	0.001*	2.713 (1.485–4.954)
Stage IV	11 (47.8%)	12 (52.2%)	23	0.001*	3.551 (1.677–7.518)
Total number	153	47	200

ACAS Asymptomatic carotid artery stenosis, PAOD Peripheral arterial occlusive disease
*Significant P-value
^aχ² = 28.2, P = 3.17 × 10⁻⁶; Spearman’s rho = 0.352, P = 3.13 × 10⁻⁷
^bAfter Bonferroni correction α’ = 0.013

ISSN: 1471-2377