Predictive factors for relapse of cryptogenic organizing pneumonia

Relapse of cryptogenic organizing pneumonia (COP) may lead to poor long-term prognosis and necessitates multiple rounds of steroid treatment with potential adverse effects. The objective of this study is to identify predictive factors of COP relapse by comparing demographic and clinical variables between relapse and non-relapse groups. During 2008–2013, 33 COP patients were treated, of which 23 (69.7%) and 10 patients (30.3%) were assigned to...