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Table 2 Number of deaths in each antibody group

From: Rheumatoid factor and anti-citrullinated protein antibody positivity, but not level, are associated with increased mortality in patients with rheumatoid arthritis: results from two large independent cohorts

Antibody group

NOAR

Leiden EAC

RF/ACPA negative

401

28

RF/ACPA low positive

39

40

RF/ACPA high positive

264

106

RF negative

444

137

RF low positive

52

54

RF high positive

202

82

ACPA negative

394

154

ACPA low positive

21

17

ACPA high positive

156

86

Both antibodies negative

339

119

RF positivea

47

35

ACPA positivea

51

9

Both antibodies positive

128

93

  1. aWhere patients had both antibodies tested. ACPA, anti-citrullinated peptide antibodies; EAC, Early Arthritis Clinic; NOAR, Norfolk Arthritis Register; RF, rheumatoid factor.
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Arthritis Research & Therapy

ISSN: 1478-6362

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