Document Classification

Section Type: RESULTS

Text: Mean VAS scores (1 = asymptomatic, 10 = severe symptoms) decreased for pain (group 1 : 5. 6 to 3. 1 ; group 2 : 4. 1 to 0. 9), stiffness (group 1 : 5. 1 to 2. 9 ; group 2 : 5. 0 to 0. 8), and function (group 1 : 5. 8 to 3. 5 ; group 2 : 4. 7 to 0. 8) from baseline to week 28 (P <. 0001), favoring PRP (P <. 05 for stiffness, P <. 01 for function, P >. 05 for pain).