Table 1 Characteristics of 59 rheumatoid arthritis patients

Mean age in years (SD)

61.0 (15.2)

Median disease duration in years (min, max)

9.5 (1, 58.5)

Caucasian (N, %)

53 (89.8)

Rheumatoid factor positive (N, %)

32 (68.1)¹

Anti-cyclic citrullinated peptide positive (N, %)

26 (86.7)¹

Median tender joint count (min, max)

4.0 (0, 26)

Median swollen joint count (min, max)

4.0 (0, 24)

Median C-reactive protein in mg/L (min, max)

2.6 (0, 17.9)

Mean DAS28-CRP (SD)

3.4 (1.3)

Median Brief Pain Inventory - short form pain severity score (min, max)

3.0 (0, 10)

Median Medical Outcomes Study sleep score (min, max)

33.1 (0, 88.9)

Median Hospital Anxiety and Depression Scale anxiety score (min, max)

4.0 (0, 17)

Median Hospital Anxiety and Depression Scale depression score (min, max)

3.0 (0, 13)

Median Hospital Anxiety and Depression Scale total score (min, max)

7.0 (0, 29)

Synthetic disease modifying anti-rheumatic drug use (N, %)

40 (67.8)

Biologic disease modifying anti-rheumatic drug use (N, %)

37 (62.7)

Combination therapy with both a synthetic and a biologic disease modifying anti-rheumatic drug (N, %)

24 (40.7)

Non-steroidal anti-inflammatory drug use (N, %)

23 (39.0)

Corticosteroid use (N, %)

18 (30.5)