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Table 2 Within-session comparisons and associations between trials

From: Test-retest reliability and sensitivity of the 20-meter walk test among patients with knee osteoarthritis

 

1st Trial

2nd Trial

Median difference

 

Spearman

Average of 2 trials

 

Median (25%, 75%)

Median (25%, 75%)

(sec)

p value

Correlation

Median (25%, 75%)

 

(sec)

(sec)

  

(95% CI)

(sec)

Day 1

 Session 1

16.72 (15.38, 19.28)

15.53 (14.60, 18.18)

0.78

< 0.01

0.94 (0.83, 0.98)

16.11 (14.99, 19.07)

 Session 2

15.28 (14.47, 18.12)

15.31 (14.32, 17.65)

−0.15

0.63

0.90 (0.72, 0.97)

15.17 (14.85, 17.97)

Day 2

 Session 3

15.71 (14.80, 17.94)

15.35 (14.37, 18.37)

0.05

0.55

0.97 (0.91, 0.99)

15.53 (14.78, 18.16)

 Session 4

15.80 (14.41, 18.90)

15.44 (13.75, 19.66)

0.13

0.98

0.98 (0.94, 0.99)

15.62 (14.16, 19.44)

  1. Note. P values are based on Wilcoxon signed-rank tests. 95% CI = 95% confidence interval for Spearman Correlation Coefficient.