Table 1 Baseline characteristics of the patients with comparison between patients with/without persistent arthritis at one year

Female gender^a

218 (58.0)

78 (63.9)

32 (61.5)

108 (53.5)

0.06

Age, years^b

46.3 (14.8)

49.0 (14.9)

45.6 (17.1)

44.9 (14.0)

0.04

Arthritis duration, days^c

32 (10 to 64)

50 (21 to 69)

59 (27 to 76)

21 (7 to 49)

<0.001

SJC (0 to 68)^c

2 (1 to 5)

4 (1 to 9)

4 (2 to 8)

1 (1 to 3)

<0.001

TJC (0 to 28)^c

1 (1 to 3)

2 (1 to 6)

2 (1 to 5)

1(0 to 2)

<0.001

ESR, mm/h^c

24 (11 to 46)

27 (10 to 50)

32 (17 to 51)

19 (10 to 38)

0.005

CRP, mg/l^c

15.0 (5.0 to 36.4)

15 (5 to 35)

18 (9 to 45)

14.0 (3.5 to 36.2)

0.16

IgM RF level, units/ml^c

4 (1 to 10)

6 (2 to 40)

6 (2 to 30)

3 (1 to 7)

<0.001

IgM RF positive^a

59 (15.7)

36 (29.5)

13 (25.0)

10 (5.0)

<0.001

Anti-CCP2 level, units/ml^c

3 (2 to 6)

4 (2 to 83)

4 (2 to 25)

2 (2 to 4)

<0.001

Anti-CCP2 positive^a

62 (16.5)

39 (32.0)

13 (25.0)

10 (5.0)

<0.001

Assessor's global VAS, mm^b

35.8 (20.7)

39.5 (21.8)

44.7 (23.0)

31.3 (18.2)

<0.001

Patient's global VAS, mm^b

53.8 (24.0)

57.4 (21.9)

59.5 (26.1)

50.2 (24.1)

0.001

Small joint arthritis^a

173 (46.0)

73 (59.8)

33 (63.5)

67 (33.2)

<0.001

Morning stiffness>1 hour^a

195 (51.9)^§

70 (57.9)

31 (60.8)

101 (58.0)

0.04

DAS28^b

4.05 (1.32)

4.47 (1.35)

4.61 (1.36)

3.65 (1.15)

<0.001

HAQ (0-3)^b

0.89 (0.67)

0.98 (0.64)

1.07 (0.80)

0.78 (0.63)

0.001

Monoarthritis^a

154 (41.0)

37 (30.3)

12 (23.1)

105 (52.0)

<0.001

   -of the knee^a

80 (51.9)

20 (54.1)

6 (50.0)

54 (51.4)

0.85

Fulfilment of 1987 ACR criteria^a†

70 (18.6)

37 (30.3)

16 (30.8)

17 (8.4)

<0.001