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Table 7 Cox proportional hazards regression analysis of independent variables with respect to the mid-term mortalitya

From: Outcomes in patients undergoing complex cardiac repairs with cross clamp times over 300 minutes

Variable OR (95 % CI) p-value
 Genderb 2.11 (1.13–3.94) 0.020
 Perfusion time 1.00 (0.99–1.01) 0.933
 Cross clamp time 1.01 (0.999–1.02) 0.081
 Surgery typec 1.44 (0.65–3.22) 0.372
 Erad 1.06 (0.53–2.13) 0.861
 Age 1.04 (1.004–1.07) 0.027
 Ventilation > 48 h 2.72 (1.46–5.08) 0.002
  1. aAll mortalities occurred more than 30 days after the surgical procedure
  2. bThe reference category was males
  3. cSurgeries including coronary artery bypass grafts (CABGs) were compared to those that did not; the reference category was surgeries involving CABG
  4. dSurgeries from 2001–2006 were compared to those from 2007–2012; the former time period was the reference category