Table 1.

Patient demographicsa

CharacteristicMean95% CISDMedianChangebSignificancec, P Value
Age, yr61.761.5 to 62.00.562.061–620.64
Men, %53.452.9 to 54.01.053.652–550.002
Diabetic, %56.655.8 to 57.31.456.754.3–58.90.003
White, %46.845.1 to 48.62.947.637.9–49.00.36
Black, %40.639.4 to 43.44.541.645.9–30.10.002
ASA III, %75.272.3 to 78.15.374.664.7–84.10.001
ASA IV, %17.811.0 to 17.97.716.433.2–7.40.001
ASA V, %0.60.0 to 0.41.10.14.2–0.00.02
  • 95% CI, 95% confidence interval; ASA, American Society of Anesthesiology physical status classification system categories.

  • a Demographics are on the basis of entire 689,676 patient population.

  • b Change indicates the range from beginning of 15-yr period to end.

  • c Significance represents a test of the trend over time as described under “Change.”