Decreased Risk of COPD Exacerbations in Obese Patients.

Survival in chronic obstructive pulmonary disease (COPD) is enhanced in obese patients, which is called the obesity paradox. Despite some theories, the precise mechanism remains unclear. Since COPD exacerbations play a major role in COPD survival, this study aimed to stratify patients into BMI classes and investigate exacerbation frequency, time to readmission and survival in patients hospitalized with a COPD exacerbation.