Table 1

Patient characteristics in the QUEST-RA study per country

Country

Number of sites

Number of patients

Age in years (mean)

Female (%)

Years of education (mean)

Disease duration in years (mean)

RF-positive (%)

Extra-articular diseasea (%)

Cardiovascular events (all)b (%)


Denmark

3

301

58

76

11

12

74

34

9.97

Finland

3

304

59

72

10

13

75

18

11.18

France

4

389

55

78

11

13

75

21

3.60

Germany

3

225

59

84

10

13

61

36

17.78

Ireland

3

225

57

64

11

11

81

30

6.67

Italy

4

336

61

78

8

10

73

13

8.93

Netherlands

3

317

59

68

11

9

69

13

9.46

Poland

7

642

53

86

12

11

71

33

11.84

Spain

3

301

60

74

10

11

71

23

9.97

Sweden

3

248

59

72

10

12

82

23

8.47

UK

3

126

60

78

12

15

84

30

10.32

Turkey

3

309

52

85

7

11

69

18

6.80

Serbia

1

100

59

88

8

10

71

23

9.00

USA

3

294

57

72

14

9

70

24

11.56

Argentina

2

246

51

90

9

10

90

26

3.66

Total

48

4,363

57 ± 1

78

10 ± 4

11 ± 9

73.7

24.3

9.31


aIncludes nodules, pulmonal fibrosis, pericarditis, vasculitis, Felty syndrome, and scleritis. bMyocardial infarction, angina, coronary heart disease, coronary bypass surgery, or stroke. QUEST-RA, Questionnaires in Standard Monitoring of Patients with Rheumatoid Arthritis; RF, rheumatoid factor.

Naranjo et al. Arthritis Research & Therapy 2008 10:R30   doi:10.1186/ar2383

Open Data