The Impact of Sarcopenia on COPD Exacerbation Admission Outcome and Further Exacerbation Risk

Inclusion Criteria

• •COPD exacerbation criteria:
• •1. acute worsening respiratory symptoms without any other causes, And
• •2. Smoking more than 15 pack-years or the history of noxious gas exposure, And
• •3. Spirometry reports suggests obstructive ventilatory defect (FEV1/FVC \<0.7) or
• •4. Attending physicians diagnose as COPD by clinical parameters if spirometry data are not available while enrolling.
• •Definite COPD exacerbation: fulfill 1、2、3 Probable COPD exacerbation: fulfill 1、2、4