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Preoperative physical fitness according to ASA classification, demonstrating low physical fitness prior to surgery in the investigated geriatric patient population (aged 70 and above). All polytraumatized patients were found in the younger patient group indicated by ASA Class 4 and 5. (n = patient number; ASA classification, 1 = Class 1; 2 = Class 2; 3 = Class 3; 4 = Class 4; 5 = Class 5)
