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Table 1 Patient demographic data of AOa (Auricular-Onset) subgroup, ROa (Respiratory-Onset) subgroup, and MOa (Miscellaneous-Onset) subgroup

From: Elucidation of predictors of disease progression in patients with relapsing polychondritis at the onset: potential impact on patient monitoring

  AO group RO group MO group
Patient number (n) 135 48 46
Gender (male-female) 67:68 24:24 28:18
Mean age 56 ± 1.5b 57 ± 2.2 60 ± 2.2
Mean age at onset 52 ± 1.5 52 ± 2.2 56 ± 2.3
Disease duration, years 4.9 ± 0.5 5.3 ± 0.7 3.6 ± 0.4
  1. aAO: patients with auricular involvement at disease onset (Auricular-Onset), RO: patients with respiratory involvement at disease onset (Respiratory-Onset), MO: patients with miscellaneous organ involvement at disease onset (Miscellaneous-Onset). 4 patients with both respiratory and auricular involvement at disease onset were excluded from this study due to their small numbers, to simplify the analysis. bAge, age at onset, and disease duration were expressed as mean ± standard error of the mean