Table 1

Patient characteristics

VariableAllNondiabeticDiabeticP value
n3,1122,469 (80)643 (20)
Age (years)56.5 ± 1655.4 ± 15.961.2 ± 13.2<0.001
Sex
    Female1,712 (53.8)1,404 (55.2)308 (47.9)<0.001
    Male1,472 (46.2)1,137 (44.8)335 (52.1)<0.001
BMI (kg/m2)27.6 ± 7.326.8 ± 6.929.6 ± 7.8<0.001
Race
    Caucasian2,161 (71.5)1,756 (73.2)405 (65.2)n.s.
    African American693 (23)514 (21.4)179 (28.8)<0.001
    Hispanic40 (1.3)32 (1.3)8 (1.9)<0.001
Severity of surgery
    Low risk268 (8.4%)224 (8.8)44 (6.8)n.s.
    Moderate risk2,707 (85%)2,165 (85.2)542 (84.3)n.s.
    High risk209 (6.6%)152 (6)57 (8.9)0.012
Blood glucose before surgery (mg/dl)120.4 ± 37.9112.6 ± 28.2144.7 ± 51.3<0.001
Blood glucose on the day of surgery (mg/dl)137.6 ± 33132.2 ± 27.6154.6 ± 41.8<0.001
Average blood glucose after surgery (mg/dl)119.9 ± 26.5114.5 ± 21.2139.3 ± 33.8<0.001
Hospital LOS (days)7.4 ± 10.87 ± 10.88.8 ± 10.6<0.001
Mortality at 30 days72 (2.26)52 (2.05)20 (3.11)n.s.
  • Data are n (%) or means ± SD.