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Table 1 Characteristics of the register-identified prevalent and incident RA patients

From: Validation of the rheumatoid arthritis diagnosis in the Swedish National patient register: a cohort study from Stockholm County

 

Prevalent RA

Incident RA

All patients

Verified RA

All patients

Verified RA

Verified incident RA

N

100

91

102

85

73

Women, n (%)

72 (72%)

64 (70%)

77 (75%)

65 (76%)

53 (73%)

Age

     

 - Mean (SD)

57.9 (16.1)

58.4 (16.1)

57.7 (17.4)

58.6 (17.3)

58.4 (17.8)

 - Median (25th-75th)

58.4 (46.3-69.0)

59.1 (46.5-71.5)

60.0 (45.3-72.0)

60.7 (45.8-74.1)

60.7 (45.8-73.9)

RF positive, n (%)

85 (85%)

80 (88%)

70 (69%)

63 (74%)

53 (73%)