Table 3

Univariate analysis of outcome dependence on preoperative variables.

VariableLikelihood Ratio P Value
Ambulation at discharge
 Agea -0.814
 BMIa -0.945
 Sex0.010.907
 CAD0.220.636
 CHF1.240.266
 COPD0.190.662
 DM0.300.583
 HTN1.800.180
 Prior fusion4.010.045b
 Anticoagulation1.260.245
 ASA >33.930.048b
 Fracture location0.040.834
 Approach0.690.406
30-d mortality
 Agea -0.508
 BMIa -0.955
 Sex0.001.000
 CAD0.070.739
 CHF0.040.852
 COPD0.040.836
 DM0.270.602
 HTN2.530.112
 Prior fusion1.940.164
 Anticoagulation1.570.210
 ASA >30.070.786
 Fracture location0.170.679
 Approach0.190.664
  • a Age and BMI we calculated with t test vs χ 2 test.

  • b Indicates significance level <0.05.

  • ASA, American Society of Anesthesiologists; BMI, body mass index; CAD, coronary artery disease; CHF, congestive heart failure ; COPD, chronic obstructive pulmonary disease; DM, diabetes mellitus; HTN, hypertension.