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Table 4 Post-treatment changes of pain and activity level—descriptive statistics

From: Efficiency of platelet-rich plasma therapy in knee osteoarthritis does not depend on level of cartilage damage

  

Mean

SD

1

2

3

4

5

6

7

1

Change of VAS

− 3.58

2.59

1

      

2

Change of WOMAC

23.51

21.66

− .780**

1

     

3

WORMS

81.66

44.15

.118

− .142

1

    

4

WORMS Cartilage

3.00

1.17

.024

− .057

.951*

1

   

5

Sex

.47

.50

− .197

.393**

− .190

− .182

1

  

6

BMI

26.12

3.88

− .041

.117

− .031

.017

− .012

1

 

7

Age

58.78

11.82

− .046

− .017

.417**

.463**

− .008

.125

1

  1. Descriptive statistics of post-treatment changes of pain and activity level depending on the MRI-proven cartilage damage level and common epidemiological data; SD standard deviation and *p ≤ .05, **p ≤ .01 (two-tailed)