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Table 2 Correlations between serum 25OHD concentrations at baseline and clinical characteristics of RA patients at baseline

From: Vitamin D and early rheumatoid arthritis

 

No. patients

Correlation co-efficient

P value

Duration EMS

335

0.074

0.191

ESR

335

−0.045

0.418

CRP

321

−0.015

0.785

TJC68

333

0.075

0.170

SJC66

333

0.029

0.601

TJC28

333

0.077

0.163

SJC28

333

0.017

0.758

VAS Patient global

327

−0.008

0.157

DAS28-ESR

315

0.037

0.513

DAS28-CRP

324

0.047

0.402

VAS pain

319

0.012

0.831

VAS EMS

115

−0.103

0.272

VAS fatigue

319

−0.021

0.713

FACIT fatigue

287

0.005

0.926

HAQ

286

−0.014

0.808

PHQ9

297

−0.006

0.913

  1. CRP C-reactive protein, DAS disease activity score, EMS early morning stiffness, ESR erythrocyte sedimentation rate, FACIT functional assessment of chronic illness therapy, HAQ health assessment questionnaire, PHQ patient health questionnaire, SJC swollen joint count, TJC tender joint count, VAS visual analogue scale