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Table 2 Cross-sectional associations between baseline clinical variables and baseline MDHAQ pain, adjusted for age and gender, among 157 RA patients in remission at baseline and 1 year

From: Pain persists in DAS28 rheumatoid arthritis remission but not in ACR/EULAR remission: a longitudinal observational study

Variable Mean MDHAQ Pain (95% CI) P
Disease duration   0.44
≤3 years 1.4 (0.8, 2.0)  
4-11 years 1.8 (1.2, 2.4)  
≥12 years 1.7 (1.0, 2.4)  
Rheumatoid factor/cyclic citrullinated peptide status   0.59
Seropositive 1.5 (0.9, 2.1)  
Seronegative 1.7 (1.2, 2.2)  
Tender-joint count   0.79
0 1.6 (1.1, 2.1)  
1 1.5 (0.6, 2.4)  
≥2 1.8 (0.8, 2.9)  
Swollen-joint count   0.92
0 1.6 (1.1, 2.1)  
1 1.2 (0.0, 2.3)  
≥2 1.7 (1.1, 2.4)  
C-reactive protein   0.28
<0.7 mg/L 1.5 (0.9, 2.1)  
0.7-2.0 mg/L 1.5 (0.9, 2.1)  
≥2.1 mg/L 1.9 (1.3, 2.5)  
Patient global health assessment   <0.0001
<5 0.6 (0.1, 1.1)  
5-14 1.4 (0.8, 1.9)  
≥15 2.9 (2.4, 3.4)  
Sharp score   0.24
≤1 1.8 (1.1, 2.4)  
2-17 1.9 (1.2, 2.7)  
≥18 1.2 (0.5, 2.0)  
MDHAQ Function Scale   <0.0001
0 0.6 (0.1, 1.2)  
0.1-0.9 1.4 (0.9, 2.0)  
≥1.0 2.9 (2.3, 3.4)  
Mental Health Index 5   0.004
≤70 2.2 (1.6, 2.8)  
71-80 1.7 (1.1, 2.4)  
>80 1.1 (0.6, 1.7)  
MDHAQ Fatigue Scale   <0.0001
<1.0 0.9 (0.3, 1.4)  
1.0-3.9 1.2 (0.7, 1.8)  
≥4.0 2.9 (2.3, 3.4)  
MDHAQ Sleep Problems Score   0.0005
0 1.2 (0.7, 1.7)  
1 2.1 (1.5, 2.7)  
≥2 2.7 (1.6, 3.8)  
Arthritis Self-Efficacy Score   0.0005
<78 2.1 (1.6, 2.7)  
78-87 1.9 (1.3, 2.5)  
≥88 0.9 (0.3, 1.4)  
Modified Charlson Index   0.91
≤1 1.6 (1.2, 2.1)  
>1 1.6 (1.0, 2.2)  
  1. MDHAQ, Multi-Dimensional Health Assessment Questionnaire; RA, rheumatoid arthritis.
  2. P values from multivariable linear regression models.