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. Author manuscript; available in PMC: 2023 Jun 1.
Published in final edited form as: Disabil Rehabil. 2020 Dec 5;44(13):3204–3210. doi: 10.1080/09638288.2020.1852446

Table 2.

Estimates of reliability, Standard Error of the Measurement, and Minimal Detectable Change for 4-meter walk tests at each time point.

Measure 4mWT (usual) 4mWT (fastest)
ICC (95% CI) SEM (95% CI) MDC95 ICC (95% CI) SEM (95% CI) MDC95
Pre-op (n=156) 0.80 (0.74, 0.85) 0.35 (0.30, 0.40) 0.97 0.91 (0.88, 0.93) 0.21 (0.18, 0.24) 0.58
1 month (n=152) 0.87 (0.83, 0.91) 0.34 (0.30, 0.40) 0.94 0.93 (0.91, 0.95) 0.23 (0.19, 0.26) 0.64
2 months (n=153) 0.87 (0.83, 0.91) 0.22 (0.19, 0.25) 0.61 0.92 (0.89, 0.94) 0.16 (0.14, 0.19) 0.44
3 months (n=152) 0.84 (0.79, 0.88) 0.20 (0.17, 0.23) 0.55 0.86 (0.82, 0.90) 0.18 (0.16, 0.21) 0.5
6 months (n=139) 0.80 (0.74, 0.86) 0.22 (0.19, 0.25) 0.61 0.84 (0.78, 0.88) 0.17 (0.15, 0.20) 0.47
1 year (n=135) 0.79 (0.72, 0.85) 0.21 (0.18, 0.24) 0.58 0.87 (0.82, 0.90) 0.15 (0.13, 0.18) 0.42