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Table 1 Baseline characteristics of the 157 RA patients in sustained DAS28-CRP4 remission (at baseline and 1 year)

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

Clinical characteristics

Values

Demographic variables

 

   Age, years, mean (SD)

51.8 (14.0)

   Female (%)

135 (86.0)

   Caucasian (%)

145 (93.6)

   Married/significant other (%)

112 (71.3)

   Lives alone (%)

19 (14.1)

   Ever smoker (%)

58 (39.2)

   Body mass index, kg/m2, mean (SD)

25.0 (4.4)

   Modified Charlson index (range, 0-23)

1.0 (0.0, 2.0)

Disease variables

 

   Disease duration, years

6.0 (2.0, 17.0)

   Rheumatoid Factor/Anti-CCP positive (%)

113 (72.4)

   Tender-joint count

0.0 (0.0, 0.0)

   Swollen-joint count

0.0 (0.0, 2.0)

   C-reactive protein, mg/L

1.2 (0.5, 2.7)

   Patient global assessment (range, 0-10)

1.0 (0.0, 2.0)

   DAS28-CRP4, mean (SD)

1.8 (0.4)

   Total Sharp score (range, 0-448)

4.0 (0.0, 29.0)

   Multi-Dimensional Health Assessment Function (range, 0-10)

0.3 (0.0-1.0)

   Multi-Dimensional Health Assessment Pain (range, 0-10)

1.0 (0.5 2.5)

Psychiatric distress/Sleep variables

 

   Mental Health Index-5 (range, 0-100)

80.0 (70.0, 90.0)

   Multi-Dimensional Health Assessment Sleep (range, 0-3)

1.0 (0.0, 1.0)

   Multi-Dimensional Health Assessment Fatigue (range, 0-10)

2.5 (1.0, 5.0)

   Arthritis Self-efficacy (range, 10-100)

82.5 (70.0, 90.0)

Medications

 

   Prednisone (%)

31 (19.8)

   MTX (%)

82 (52.2)

   bDMARD (%)

71 (45.2)

   Non-MTX, non-bDMARD (%)

22 (14.0)

   Combination MTX and bDMARD (%)

36 (22.9)

   Combination MTX and non-MTX, non-bDMARD (%)

4 (2.6)

   Combination bDMARD and non-MTX, non-bDMARD (%)

7 (4.5)

   Nonsteroidal anti-inflammatory drugs (%)

80 (51.0)

   Opioids (%)

8 (5.1)

   Other pain medications (%)

16 (10.2)

  1. anti-CCP, anti-cyclic citrullinated peptide; bDMARD, biologic DMARD; DAS28-CRP4, disease activity score in 28 joints calculated by using CRP and patient global assessment; MTX, methotrexate; RA, rheumatoid arthritis; SD, standard deviation. Continuous variables are listed as medians (interquartile ranges), and dichotomous variables are listed as numbers (%), unless otherwise noted.