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Table 3 Inter- and Intra-rater reliability of Timed Up and Go test – ICCs, SEM, MDC and Bland and Altman tests

From: The reliability and minimal detectable change of Timed Up and Go test in individuals with grade 1 – 3 knee osteoarthritis

 

ICC, SEM and MDC

Bland and Altman test

ICC (95 % CI)

SEM

MDC

đ

95 % CI for đ

SDdiff

95 % limit of agreement

Inter-rater reliability

0.96 (0.94 – 0.97)

0.17

1.14

−.045

−.24 – .15

.80

−1.61 – 1.52

Intra-rater reliability

0.97 (0.95 – 0.98)

0.16

1.10

−.115

−.34 – .11

.94

−1.95 – 1.72

  1. ICC intraclass correlation coefficients, SEM standard error of measurement, MDC minimal detectable change, đ mean difference, 95 % CI for đ 95 % confidence interval for the mean difference, SD diff standard deviation of the differences