A univariate Cox regression analyses identified prognostic factors, including the P/F ratios (hazard ratio [HR], 0.99; 95% confidence interval [95% CI], 0.99–0.99; P < 0.01), serum Alb levels (HR, 0.23; 95% CI, 0.11–0.50; P < 0.01), crazy paving GGO (HR, 9.17; 95% CI, 1.82–46.1; P < 0.01), consolidations (HR, 11.2; 95% CI, 2.62–48.1; P < 0.01), and bronchiectasis (HR, 10.0; 95% CI, 2.40–42.0; P < 0.01) (Additional file 1: Table S1). The gene discussed is ALB; the disease is bronchiectasis.