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Statistics summarizing the test-retest reliability of gait speed measurements
| Speed | Test Mean (SD) | Retest Mean (SD) | T (p) | ICC (95% CI) | Standard Error | MDC95% | MDC%95% |
|---|---|---|---|---|---|---|---|
| Usual | 1.11 (0.23) | 1.15 (0.22) | 1.893 (0.061) | 0.406 (0.270–0.526) | 0.18 | 0.50 | 45.0 |
| Maximum | 1.59 (0.36) | 1.59 (0.36) | 0.109 (0.914) | 0.461 (0.331–0.573) | 0.26 | 0.72 | 45.3 |
Abbreviations: T = t-test, p = p-value, ICC = intraclass correlation, MDC = minimal detectable change
