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Table 3 Results from each Performed Analysis on both the WOMAC and VAS Scales

From: Intra-articular platelet-rich plasma injections versus intra-articular corticosteroid injections for symptomatic management of knee osteoarthritis: systematic review and meta-analysis

Outcome Pooled mean difference (MD)
No. Studies WOMAC (/96) P No. Studies VAS (/10) P
3 months 3 −2.15 [−5.65, 1.35] 0.23 4 − 0.51 [− 1.02, 0.01] 0.05
6 months 4 −9.51 [− 15.20, −3.83] 0.05 4 − 0.97 [− 1.94, 0.00] 0.05
6 months: KL 1–2 1 −3.86 [−6.01, − 1.71] 0.0004 1 −0.28 [− 0.97, 0.41] 0.43
6 months: KL 2–3 2 − 9.10 [− 15.73, − 2.46] 0.007 2 − 0.68 [− 2.01, 0.65] 0.32
9 months* 1 −8.04 [− 10.19, − 5.89] < 0.00001
12 months 2 − 8.10 [− 23.86, 7.65] 0.31 2 −0.07 [− 0.42, 0.28] 0.69
LP-PRP 2 − 7.95 [− 18.14, 2.24] 0.13 2 −0.39 [− 1.01, 0.23] 0.22
LR-PRP 2 − 11.26 [− 19.88, − 2.64] 0.01 5 − 0.98 [− 1.80, − 0.16] 0.02
Triple PRP injection 2 −9.65 [− 21.35, 2.04] 0.11 3 −1.30 [− 2.33, − 0.26] 0.01
Single PRP Injection 2 −9.10 [− 15.75, − 2.46] 0.007 44 − 0.26 [− 1.03, 0.52] 0.52