Task: Answer Verification
Input (English): Question: Are arterial blood gas derangement and level of comorbidity predictors of long-term mortality of COPD patients treated with mechanical ventilation?
Answer: Chronic obstructive pulmonary disease patients treated with invasive mechanical ventilation have substantial long-term mortality. Neither the levels of arterial blood gas values measured immediately before invasive mechanical ventilation was initiated nor the burden of comorbidity were strong determinants of long-term mortality among these patients.
Output (English): no