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Table 2 Univariate and multivariate regression analysis in rheumatoid arthritis group (n = 90)

From: Impact of disease activity on impaired glucose metabolism in patients with rheumatoid arthritis

 

logHOMA2-IR

logHOMA2-%S

logC-peptide

Univariate regression

Multivariate regressionb

Univariate regression

Multivariate regressionb

Univariate regression

Multivariate regressionb

β

P

β

P

β

P

β

P

β

P

β

P

Classic IR risk factors

 Age (years)

0.004

0.015

0.001

0.328

− 0.006

0.010

− 0.003

0.316

0.007

0.001

0.005

0.039

 BMI (kg/m2)

0.014

0.000

0.011

0.002

− 0.024

0.000

− 0.017

0.006

0.016

0.001

0.011

0.042

 TGLa (mmol/l)

0.501

0.000

0.314

0.020

− 0.982

0.000

− 0.654

0.006

0.584

0.004

0.302

0.144

 Hypertension, n (%)

0.053

0.091

− 0.007

0.837

− 0.102

0.060

0.001

0.985

0.086

0.062

−0.004

0.938

Inflammation markers

 ESRa (mm/h)

0.037

0.384

0.030

0.388

− 0.070

0.349

− 0.066

0.320

0.145

0.020

0.133

0.022

 CRPa (mg/l)

0.030

0.363

0.030

0.320

− 0.062

0.281

− 0.069

0.183

0.048

0.332

0.043

0.361

 IL-6a (pg/ml)

0.003

0.901

0.016

0.511

− 0.018

0.698

− 0.041

0.320

− 0.011

0.776

− 0.002

0.963

Parameters of RA activity

 MMP3a (ng/ml)

0.084

0.024

0.075

0.025

− 0.013

0.013

− 0.143

0.012

0.051

0.364

0.045

0.390

 DAS28-ESRa

0.194

0.041

0.206

0.014

− 0.335

0.043

− 0.354

0.014

0.232

0.102

0.248

0.058

 DAS28-CRPa

0.182

0.032

0.192

0.009

− 0.313

0.033

− 0.332

0.009

0.144

0.256

0.162

0.163

 DAS28-ESR ≥ 5.1

0.086

0.002

0.083

0.001

− 0.730

0.003

− 0.143

0.001

0.095

0.026

0.090

0.022

 HAQa

0.386

0.031

0.362

0.023

− 0.148

0.019

− 0.646

0.018

0.276

0.302

0.210

0.401

 VASa

0.132

0.034

0.148

0.007

− 0.228

0.035

− 0.249

0.008

0.001

0.269

0.111

0.199

 TJCa

0.118

0.015

0.121

0.005

− 0.205

0.014

− 0.206

0.005

0.059

0.418

0.068

0.312

 SJCa

0.006

0.202

0.056

0.175

− 0.106

0.192

− 0.094

0.181

0.031

0.661

0.024

0.709

  1. Two-tailed level of P < 0.05 was considered statistically significant and marked in bold
  2. Abbreviations: β unstandardized coefficient, BMI body mass index, CRP C-reactive protein, DAS28 disease activity score of 28 joints, ESR erythrocyte sedimentation rate, HAQ Health Assessment Questionnaire, HOMA2-IR Homeostasis Model Assessment of insulin resistance, HOMA2-%S Homeostasis Model Assessment of insulin sensitivity, IL interleukin, IR insulin resistance, MMP3 matrix metalloproteinase-3, RA rheumatoid arthritis, SJC number of swollen joints, TGL triglycerides, TJC number of tender joints, VAS visual analogue scale (0–100 mm)
  3. aLog values. bAdjusted for age, BMI, hypertension, and triglycerides