<prompt> Which one of the following is not a component of THORACOSCORE?Performance statusComplication of surgeryASA gradingPriority of surgery  <response>: Thoracoscore Most used model to assess risk of operative moality in thoracic patients. Risk is calculated based on nine variables - Age Sex American Society of Anesthesiologists ASA score 2, 3 Performance status according to Zubrod scale2, 3 Dyspnoea score according to MMRC scale 2, 3 Priority of surgery Elective, urgentemergency Extent of surgery Pneumonectomy, other Malignant diagnosis Malignant, Benign Composite comorbidity score 