Table 3 Impact of adverse outcome by time of occurrence on overall patient evaluation, dissatisfaction and need for improvement in care (Leiden University Medical Center, 1876 surgical patient admissions during 2003)
Overall patient evaluationDissatisfactionImprovement needed
B (95% CI)Odds ratio (95% CI)Odds ratio (95% CI)
Inhospital adverse outcomes only†0.039 (−0.166 to 0.243)1.88 (0.95 to 3.72)1.04 (0.76 to 1.43)
Adverse outcomes after discharge only†−0.193 (−0.347 to −0.039)*2.02 (1.24 to 3.31)*1.26 (1.00 to 1.60)
Inhospital and after discharge adverse outcomes†−0.334 (−0.604 to −0.064)*2.22 (0.95 to 5.18)1.43 (0.94 to 2.16)
Age (years)0.005 (0.002 to 0.009)*1.00 (0.99 to 1.01)1.00 (0.99 to 1.00)
Gender (women/men)−0.04 (−0.161 to 0.08)1.45 (0.95 to 2.21)1.18 (0.98 to 1.43)
ASA class I–II‡0.271 (0.124 to 0.417)*0.37 (0.23 to 0.59)*1.18 (0.94 to 1.48)
ASA class III–V‡0.157 (−0.043 to 0.357)0.50 (0.26 to 0.95)*0.95 (0.70 to 1.30)
ASA class missing‡0.495 (0.181 to 0.81)*0.12 (0.02 to 0.89)*0.93 (0.57 to 1.53)
Model fitAdjusted R2 = 0.013Nagelkerke R2 = 0.048Nagelkerke R2 = 0.011

  • ASA, American Society of Anaesthesiologists.

  • *Differences significant in the regression analyses (p⩽0.05).

  • †Reference category: patients without any adverse outcomes.

  • ‡Reference category: patients without operation.