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

Table 3 Involved organs at disease onset and at the last follow-up, and the mortality rates

Onset	Mortality rates (Death)	Last follow-up	Mortality rates (Death)
AO, 135 patients	5.9% (8)^a	AL^b, 91 patients	3.3% (3)
AO, 135 patients	5.9% (8)^a	BL^b, 44 patients	11% (5)
RO, 48 patients	15% (7)	RL, 39 patients	13% (5)
RO, 48 patients	15% (7)	BL^b, 9 patients	22% (2)
MO, 46 patients	15% (7)^a	AL, 26 patients	19% (5)
		RL, 8 patients	0% (0)
		BL, 12 patients	17% (2)

^aMortality rate was significantly higher in MO patients than that in AO patients (P = 0.048). ^bAL: patients with auricular without respiratory involvement at the last follow-up (Auricular-Last), RL: patients with respiratory without auricular involvement at the last follow-up (Respiratory-Last), BL: patients with both respiratory and auricular involvement at the last follow-up (Both-Last). MO patients demonstrated poor prognosis even without respiratory involvement, namely 26 MO-AL patients, at the last follow-up

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