Fig 1.
Unenhanced multi-sliced computed tomography images of arterial calcification (A) circumferential calcification of the distal abdominal aorta (B) calcification of both distal superficial femoral arteries at the level of the adductor hiatus with evidence of significant intraluminal stenotic plaque disease. Arrows identify areas of calcification.
Fig 2.
Study profile.
Table 1.
Baseline demographics.
Table 2.
Baseline characteristic and clinical outcomes by total LLAC score quartiles.
Table 3.
Total and segments LLAC scores in patients with and without cardiovascular events during follow-up.
Table 4.
Baseline characteristic and clinical outcomes by Bollinger score quartiles.
Table 5.
Total and segmental Bollinger scores in patients with and without cardiovascular events during follow-up.
Fig 3.
Correlation between total LLAC and Bollinger scores in patients with symptomatic peripheral arterial disease.
Statistical analysis performed using Spearman’s rank correlation coefficient. p<0.05 taken to be statistically significant.
Fig 4.
Receiver-operator curves for total LLAC and Bollinger scores and the primary outcome of cardiac mortality and morbidity.
AUC for the LLAC score was 0.929 (95% CI 0.884–0.974), p< 0.001 AUC for the Bollinger score 0.824 (95% CI 0.758–0.890), p<0.001 ROC = receiver-operator curve; LLAC = lower limb arterial calcification; AUC = area under the curve; CI = confidence interval.