Table 2

Seven significant variables following stepwise logistic regression for mortality outcome

VariableORRank score
Age  (years)
 30–493.3563
 50–7410.4825
 75–8416.3656
 >8536.7128
Surgical risk (moderate/severe)2.2042
Anaemia status
 Mild1.4481
 Moderate/severe2.5983
RDW>15.72.3742
Ischaemic heart disease2.0662
ASA Classification
 34.5824
 419.6457
Emergency surgery3.0683
  • ASA, American Society of Anaesthesiologists; RDW, red cell distribution width.