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Table 2 The PRP group showed a significantly higher post injective pain reaction (p=0.039)

From: Platelet-rich plasma vs hyaluronic acid to treat knee degenerative pathology: study design and preliminary results of a randomized controlled trial

Level of pain and swelling: comparison
Pain Swelling
(n. of days x level 1–10) (n. of days x level 1–10)
PRP HA PRP HA
16.7 9.2 10.3 7.2
PRP > HA PRP = HA