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Table 2 Meta-regression of effect-sizes 0.5–5 months post-operatively with number of comparisons used in the analysis ( k ), percentage between-study variance ( I 2 ), the regression coefficient ( B ), and its P -value ( P ); from papers with more than 1 short-term comparison, only the first one was selected

From: The effects of knee arthroplasty on walking speed: A meta-analysis

 

k

I 2

B

P

Time

10

85.3

0.39

< 0.001

Age

10

85.3

−0.08

0.14

Distance walked

10

85.3

−0.001

1.0

UKA

10

85.3

0.63

0.12

Gender (% male)

10

85.3

−0.001

0.99

BMI

10

85.3

−0.05

1.0

Initial speed

10

85.3

1.82

0.14