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Table 2 Mean walking distances and reliability measurements

From: Functional claudication distance: a reliable and valid measurement to assess functional limitation in patients with intermittent claudication

  Measurement one (metres) Measurement two (metres) ICC Value (95% CI) Coefficient of variation (%)
ICD 271.6 ± 174.9 273.7 ± 162.2 0.940
(0.899 – 0.964)
21.7%
FCD 531.2 ± 357.3 541.2 ± 339.6 0.959
(0.931 – 0.976)
18.8%
ACD 635.4 ± 376.0 642.6 ± 368.8 0.975
(0.957 – 0.985)
13.2%
  1. SD: standard deviation, ICC: intra-class correlation coefficient, CI: confidence interval, ICD: initial claudication distance, FCD: functional claudication distance, ACD: absolute claudication distance