23 hospitals in Australia and New Zealand. We studied 4158 consecutive patients of whom
2845 (68%) had pre‐existing comorbidities. By day 30, 216 (5%) patients had died, and 835
(20%) suffered complications; 390 (9.4%) patients were admitted to the Intensive Care Unit.
Pre‐operative factors associated with mortality included: increasing age (80–89 years: OR
2.1 (95% CI 1.6–2.8), p< 0.001; 90+ years: OR 4.0 (95% CI 2.6–6.2), p< 0.001); worsening …