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Table 3 Post-treatment changes of pain and activity level—regression analysis

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

Dependent variable

Change of VAS depending on WORMS overall

Change of VAS depending on WORMS Cartilage

Change of WOMAC depending on WORMS overall

Change of WOMAC depending on WORMS Cartilage

Constant

− 2.036 (.464)

− 1.900 (.498)

1.012 (.963)

− .224 (.992)

WORMS

.007 (.410)

 

− .032 (.647)

 

WORMS Cartilage

 

.026 (.940)

 

.659 (.805)

Sex

− .895 (.204)

− 1.004 (.157)

16.442** (.004)

17.235** (.003)

BMI

− .018 (.838)

− .025 (.780)

.670 (.343)

.709 (.314)

Age

− .021 (.520)

− .011 (.753)

− .004 (.989)

− .084 (.747)

n

59

59

59

59

  1. Regression analysis of post-treatment changes for pain and activity level with regard to MRI-proven cartilage damage level and common epidemiological data. Dependent variables are Change of VAS (visual analogue scale) and Change of WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index). OLS regression coefficients with p values in parentheses (*p ≤ .05, **p ≤ .01, ***p ≤ .001 two-tailed)
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X