Chen R, et al. - Researchers compared the predictive values of body mass index, Nutritional Risk Screening 2002 (NRS 2002), and serum albumin (ALB) level for the clinical prognosis of chronic obstructive pulmonary disease (COPD) patients with respiratory failure. From June 2013 to June 2016, COPD patients with respiratory failure who were treated in their center were retrospectively involved. Four hundred thirty-eight qualified patients were recruited. Findings revealed that ALB level was superior for forecasting in-hospital mortality and 30-day readmission after discharge and NRS 2002 was superior for long-term prognosis of 1-year mortality for COPD patients with respiratory failure.