This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Anaesthesia
Which of the following is not a component of thoracoscore ? 
Select and explain. 
A. Performance status, B. Complication of surgery, C. ASA grading, D. Priority of Surgery
B: Complication of surgery
Answer: B: Complication of surgery 
Explanation: Complication of surgeryis not a component of THORACOSCORE Based on Thoracoscore , risk factors for in hospital moality in adult patients after thoracic surgery are: Variable Risk factors Age >55 yrs Gender Male ASA physical status >2 Performance statusclassification(WHO) >3 Dyspnea score(MRC) >3 Procedure class Pneumonectomy Surgical priority Urgent or emergency Diagnosis Malignant Comorbid diseases >3