Comparison 2. Autologous blood or PRP injection versus glucocorticoid injection.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
2.1 Pain relief ≥ 50%	1		Risk Ratio (M‐H, Random, 95% CI)	Subtotals only
2.1.1 6 weeks	1	38	Risk Ratio (M‐H, Random, 95% CI)	0.19 [0.07, 0.53]
2.1.2 1 year	1	38	Risk Ratio (M‐H, Random, 95% CI)	1.67 [1.03, 2.71]
2.2 Mean pain	13		Mean Difference (IV, Random, 95% CI)	Subtotals only
2.2.1 Up to 3 weeks	5	280	Mean Difference (IV, Random, 95% CI)	2.06 [0.67, 3.45]
2.2.2 > 3 weeks to 6 weeks	13	707	Mean Difference (IV, Random, 95% CI)	0.99 [0.21, 1.77]
2.2.3 > 6 weeks to 3 months	11	627	Mean Difference (IV, Random, 95% CI)	‐1.15 [‐1.71, ‐0.59]
2.2.4 > 3 months to 6 months	8	427	Mean Difference (IV, Random, 95% CI)	‐1.55 [‐2.21, ‐0.90]
2.2.5 > 6 months to 1 year	4	258	Mean Difference (IV, Random, 95% CI)	‐1.59 [‐2.22, ‐0.97]
2.2.6 > 1 year	1	100	Mean Difference (IV, Random, 95% CI)	‐2.11 [‐3.19, ‐1.03]
2.3 Function (various scales)	14		Mean Difference (IV, Random, 95% CI)	Subtotals only
2.3.1 Up to 3 weeks	3	170	Mean Difference (IV, Random, 95% CI)	16.46 [‐4.23, 37.15]
2.3.2 > 3 weeks to 6 weeks	13	724	Mean Difference (IV, Random, 95% CI)	6.11 [1.79, 10.44]
2.3.3 > 6 weeks to 3 months	12	635	Mean Difference (IV, Random, 95% CI)	‐10.19 [‐14.16, ‐6.21]
2.3.4 > 3 months to 6 months	7	374	Mean Difference (IV, Random, 95% CI)	‐5.07 [‐12.66, 2.52]
2.3.5 > 6 months to 1 year	4	317	Mean Difference (IV, Random, 95% CI)	‐8.94 [‐12.09, ‐5.78]
2.3.6 > 1 year	1	100	Mean Difference (IV, Random, 95% CI)	‐18.90 [‐28.27, ‐9.53]
2.4 Treatment success	7		Risk Ratio (M‐H, Random, 95% CI)	Subtotals only
2.4.1 Up to 6 weeks	5	317	Risk Ratio (M‐H, Random, 95% CI)	0.26 [0.07, 0.95]
2.4.2 > 6 weeks to 3 months	3	188	Risk Ratio (M‐H, Random, 95% CI)	1.56 [1.08, 2.26]
2.4.3 > 3 months to 6 months	3	187	Risk Ratio (M‐H, Random, 95% CI)	1.02 [0.23, 4.44]
2.4.4 > 6 months to 1 year	3	300	Risk Ratio (M‐H, Random, 95% CI)	1.61 [0.55, 4.75]
2.4.5 > 1 year	2	199	Risk Ratio (M‐H, Random, 95% CI)	1.00 [0.31, 3.16]
2.5 Adverse events	5	317	Risk Ratio (M‐H, Random, 95% CI)	1.64 [0.65, 4.12]
2.6 Grip strength	6		Std. Mean Difference (IV, Random, 95% CI)	Subtotals only
2.6.1 Up to 3 weeks	3	170	Std. Mean Difference (IV, Random, 95% CI)	‐0.52 [‐0.87, ‐0.16]
2.6.2 > 3 weeks to 6 weeks	6	348	Std. Mean Difference (IV, Random, 95% CI)	‐0.26 [‐0.68, 0.16]
2.6.3 > 6 weeks to 3 months	6	348	Std. Mean Difference (IV, Random, 95% CI)	0.56 [0.19, 0.93]
2.6.4 > 3 months to 6 months	2	68	Std. Mean Difference (IV, Random, 95% CI)	0.35 [‐0.13, 0.83]
2.6.5 > 6 months to 1 year	2	118	Std. Mean Difference (IV, Random, 95% CI)	0.66 [0.29, 1.03]