Table 3.

Post-hoc test for each comparison of the Short Physical Performance Battery (SPPB) measurement time points (t1-t5)

SPPB total sample
contrast	t1-t2	t1-t3	t1-t4	t1-t5	t2-t3
p*	< 0.001	0.763	0.034	< 0.001	< 0.001
r	0.659	0.155	0.226	0.699	0.742
contrast	t2-t4	t2-t5	t3-t4	t3-t5	t4-t5
p*	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
r	0.783	0.863	0.498	0.789	0.569
SPPB hip replacement group
contrast	t1-t2	t1-t3	t1-t4	t1-t5	t2-t3
P*	< 0.001	1	0.005	< 0.001	< 0.001
r	0.543	0.040	0.384	0.786	0.737
contrast	t2-t4	t2-t5	t3-t4	t3-t5	t4-t5
P*	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
r	0.754	0.866	0.452	0.778	0.533
SPPB knee replacement group
contrast	t1-t2	t1-t3	t1-t4	t1-t5	t2-t3
P*	< 0.001	0.009	1	0.003	< 0.001
r	0.796	0.458	0.063	0.527	0.755
contrast	t2-t4	t2-t5	t3-t4	t3-t5	t4-t5
P*	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001
r	0.833	0.862	0.570	0.810	0.632

t1 = preoperative, t2 = 3. postoperative day, t3 = 7. postoperative day, t4 = 4–6 weeks postoperative, t5 = 3 months postoperative

*Bonferroni correction applied for 10 tests; p = p-value of the Pairwise Wilcoxon signed-rank Test; r = effect size