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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