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Table 2a Observed mortality in emergency surgery in the elderly by ASA grade

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

Study n Age (≥) ASA I ASA II ASA III ASA IV ASA V
Arenal15 710 70 6% 19% 38% 89%
Barlow14 204 64 0% 9% 50% 75%
Cook18 107 65 0% 17% 25% 77% 91%
Akoh19 83 80 - 13% 25% 75% -
Makela20 71* 70 0% 0% 9% 29% 100%
Cook50 49 75 0% 0% 10% 63% 100%
  1. Combined boxes when study has combined two ASA classes for analysis; -indicates no patients with this ASA score in study; * all 71 patients had perforated diverticular disease