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Table 4 Independent risk factors for ICU mortality

From: Acute and long-term survival in chronically critically ill surgical patients: a retrospective observational study

  Odds ratio (95% confidence interval) P value
Age (per year)a 26.730 (1.970–362.622) 0.014
Maximum APACHE II score (per point) 1.567 (1.200–2.047) 0.001
Duration of catecholamine therapy (per day)b 10.188 (2.789–37.215) < 0.001
Maximum number of failing organs (per organ) 6.913 (1.356–35.244) 0.020
Surgery for thoracic diseases 3.651 (1.541–8.647) 0.003
Peritonitis 6.437 (3.068–13.505) < 0.001
  1. aAfter quadratic transformation. bAfter logarithmic transformation. APACHE, Acute Physiology and Chronic Health Evaluation; ICU, intensive care unit.