Prognostic Factors for Survival and Relapse in ANCA-Associated Vasculitis with Renal Involvement: A Clinical Long-Term Follow-Up Study

Figure 4

(a) Kaplan-Meier renal survival curve for all patients. (b) Kaplan-Meier renal survival curve for histology groups. The univariate Cox proportional hazards model HR (95% CI) 0.11 (0.03-0.41), p=0.001 in focal; 0.32 (0.11–0.90), p=0.03 in crescentic; and 0.49 (0.18–1.33), p=0.16 in mixed AAGN when sclerotic AAGN was included as a reference. (c) Kaplan-Meier for renal survival for ANCA subgroups. The univariate HR (95% CI) was 3.17 (1.31-7.64), p=0.01, when the MPO-ANCA-positive patients were compared to PR3-ANCA-positive patients. (d) Kaplan-Meier renal survival curves for female and male. The univariate Cox proportional hazards model: HR (95% CI) 0.36 (0.14-0.96), p=0.04, when the female patients were compared to male patients.

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