Table 2 Baseline – RA-specific characteristics

ESR, mm/H

9 [7–21]

6 [6–17]

0.689

Disease activity score (DAS28)

2.24 [1.3–2.5]

1.98 [1.8–2.2]

1.000

Anti-CCP positive (%)

7 (70)

8 (61)

0.673

Rheumatoid factor positive (%)

8 (80)

7 (54)

0.192

Disease duration, years

7.8 [4.0–10.2]

13.3 [9.3–20.2]

0.012

Anti-TNF

n/a

n/a

- Adalimumab

10

- Certolizumab

1

- Etanercept

1

Disease duration until start anti-TNF, years

1.2 [1.0–1.7]

5.6 [4.3–9.1]

0.001

Anti-TNF withdrawal attempts, yes/no

10/0

9/4

n/a

DMARD

n/a

- Methotrexate

9

11

- Sulfasalazine

1

Other Rx

- Statin

1

1

0.848

- Antihypertensive

5

5

0.580