Fig. 3

Kaplan–Meier survival curves of all-cause mortality. A There was no difference in survival between patients with and without MPA (P = 0.897). B Patient survival was better for those with indeterminate for UIP and alternative diagnosis than for UIP HRCT pattern (P = 0.023, P = 0.011, respectively) (overall analysis: P = 0.023) C Survival of patients with honeycomb lesions showed a worse tendency than that for patients without this finding although the difference was not significant (P = 0.084). D The patients with anterior upper lobe honeycomb-like lesions showed significantly poorer survival than those without this finding (P = 0.018). HRCT high-resolution computed tomography, MPA microscopic polyangiitis, UIP usual interstitial pneumonia