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

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

Lower limb PAOD ACAS (%)a Total number P-valueb Odds ratios (95% confidence interval)
Non-significant Significant
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   
  1. ACAS Asymptomatic carotid artery stenosis, PAOD Peripheral arterial occlusive disease
  2. *Significant P-value
  3. aχ2 = 28.2, P = 3.17 × 10−6; Spearman’s rho = 0.352, P = 3.13 × 10−7
  4. bAfter Bonferroni correction α’ = 0.013