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Table 3 Predicted risk of mortality after major surgery performed as urgent/emergency. (Adapted from Donati et al16)

From: Pre-operative risk scores for the prediction of outcome in elderly people who require emergency surgery

ASA Class Age 50–69 Age ≥ 70
I 2% 0%
II 8.2% 12.9%
III 21% 30.6%
IV 44.3% 56.8%