Comparison 8. Variable stiffness shoe versus constant stiffness shoe.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Pain (WOMAC)	1		Mean Difference (IV, Random, 95% CI)	Subtotals only
1.1 6 months	1	60	Mean Difference (IV, Random, 95% CI)	‐3.70 [‐8.57, 1.17]
1.2 12 months	1	55	Mean Difference (IV, Random, 95% CI)	‐1.10 [‐6.43, 4.23]
2 Stiffness (WOMAC)	1		Mean Difference (IV, Random, 95% CI)	Subtotals only
2.1 6 months	1	60	Mean Difference (IV, Random, 95% CI)	‐1.90 [‐4.34, 0.54]
2.2 12 months	1	44	Mean Difference (IV, Random, 95% CI)	‐1.40 [‐4.52, 1.72]
3 Physical function (WOMAC)	1		Mean Difference (IV, Random, 95% CI)	Subtotals only
3.1 6 months	1	60	Mean Difference (IV, Random, 95% CI)	‐6.90 [‐24.14, 10.34]
3.2 12 months	1	55	Mean Difference (IV, Random, 95% CI)	‐4.90 [‐24.54, 14.74]