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Table 1 Patient characteristics

From: Mutations in genes encoding complement inhibitors CD46 and CFHaffect the age at nephritis onset in patients with systemic lupus erythematosus

  Southern Sweden Mid Sweden
Number of patients 164 358
Women 143 (87) 320 (89)
Age at diagnosis (years) 46.0 ± 13.2 31.8 ± 13.6
Age at nephritis onset (years) 33.8 ± 14.6 33.6 ± 14.9
SLE duration (years) 16.0 ± 9.7 17.7 ± 11.0
Number of SLE criteria 5.9 (4 to 10) 5.8 (4 to 10)
Malar rash 95 (58) 190 (53)
Discoid rash 61 (37) 59 (16)
Photosensitivity 116 (71) 195 (54)
Oral ulcer 42 (26) 114 (32)
Arthritis 132 (80) 299 (84)
Serositis 88 (54) 158 (44)
Nephritis 43 (26) 153 (43)
Neurological disorder 15 (9) 45 (13)
Hematological disorder 87 (53) 241 (61)
Immunological disorder 121 (74) 265 (74)
Antinuclear antibodies 164 (100) 356 (99)
  1. Data presented as n (%), mean ± standard deviation or mean (range). SLE, systemic lupus erythematosus.