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Table 5 Univariate vs multivariate regression model of the IPFP area and patient demographics as well as individual manifestations of OA

From: Infrapatellar fat pad area on knee MRI: does it correlate with the extent of knee osteoarthritis?

Variables

Univariate

Multivariate

Unstandardized B

Standardized B

P value

Unstandardized B

Standardized B

P value

Age

− 0.088

− 0.367

< 0.001

− 0.016

− 0.062

0.396

Gender

− 0.320

− 0.093

0.202

− 0.279

− 0.081

0.271

BMI

− 0.096

− 0.161

0.018

0.161

0.259

0.167

X-ray

 Joint space narrowing

− 1.048

− 0.536

< 0.001

− 0.058

− 0.25

0.935

 Osteophites

− 1.089

− 0.552

< 0.001

0.653

0.309

0.416

 OA Grading

− 1.533

− 0.658

< 0.001

− 2.241

− 0.848

< 0.001

MRI

 Cartilage defects:

− 0.666

− 0.477

< 0.001

− 0.177

− 0.127

0.184

 BM lesions

− 0.858

− 0.394

0.003

− 0.022

− 0.010

0.895

 SC fat thickness

− 0.150

− 0.160

0.019

− 0.286

− 0.284

0.142