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Table 3 Construct validity; Spearman correlation coefficients between the ALDS, the VascuQol and clinical indicators (n = 62).

From: The AMC Linear Disability Score (ALDS): a cross-sectional study with a new generic instrument to measure disability applied to patients with peripheral arterial disease

  ALDS VascuQol
(Activity)
VascuQol
(Total)
Decrease ABI after exercise
(in patients with IC)
r = 0.16 p = 0.50 r = 0.00 p = 1.00 r = 0.16 p = 0.50
ABI at rest
(in patients with CLI)
r = 0.14 p = 0.49 r = 0.02 p = 0.92 r = 0.20 p = 0.33
Toe pressure
(in patients with CLI)
r = 0.19 p = 0.37 r = 0.38 p = 0.06 r = 0.18 p = 0.38