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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