Table 5 Multivariable linear regression analysis of factors associated with HRpQCT parameters at the distal radius among patients with RA, n = 81

Distal radius

β

P

β

P

β

P

β

P

β

P

β

P

Age, years

0.904

0.211

−0.556

0.000

−4.145

0.000

−1.397

0.010

−4.635

0.000

−0.012

0.000

Female

−80.386

0.000

−20.183

0.000

−19.657

0.341

−33.415

0.005

30.57

0.262

−0.156

0.021

BMI

−0.633

0.708

1.114

0.002

3.846

0.062

3.121

0.009

2.88

0.288

0.018

0.009

Grip strength

1.529

0.112

0.157

0.426

–

–

–

–

–

–

–

–

Duration, years

1.882

0.012

0.059

0.694

−2.526

0.010

−1.394

0.010

−4.545

0.001

−0.002

0.424

DAS28

4.906

0.275

1.189

0.200

−5.802

0.285

−1.669

0.549

−14.252

0.049

−0.002

0.892

HAQ

24.828

0.044

−4.068

0.108

−11.831

0.458

–

–

−31.548

0.136

−0.108

0.037

GC ever

–

–

–

–

–

–

–

–

− 14.244

0.479

–

–

HCQ

−29.553

0.028

4.546

0.099

42.453

0.016

16.638

0.099

–

–

0.091

0.106

Distal radius

β

P

β

P

β

P

β

P

β

P

β

P

Age, years

−0.144

0.584

−0.010

0.008

0.011

0.082

0.009

0.109

−0.002

0.020

0.005

0.540

Female

−15.973

0.011

−0.119

0.273

0.291

0.055

0.217

0.094

−0.042

0.007

−0.720

0.001

BMI

0.536

0.393

0.020

0.038

−0.029

0.058

− 0.029

0.031

0.004

0.006

0.048

0.023

Grip strength

–

–

0.010

0.052

–

–

–

–

–

–

–

–

Duration, years

−0.126

0.651

−0.009

0.017

0.015

0.030

0.010

0.098

−0.002

0.017

0.016

0.086

DAS28

1.501

0.312

−0.005

0.833

0.108

0.004

0.074

0.023

−0.002

0.671

−0.006

0.903

HCQ

–

–

–

–

–

–

–

–

0.026

0.053

–

–

bDMARD

–

–

−0.094

0.250

–

–

0.24

0.055

–

–

–

–

TWH

–

–

–

–

–

–

–

–

–

–

0.311

0.042