Table 3 Factors contributing to lower extremity amputation and salvage by χ2 analysis

Sex

0.005 (> 0.999)

0.274 (> 0.999)

0.002 (> 0.999)

Age^a

0.001

0.055

0.107

Height^a

0.923

0.291

0.273

Weight^a

0.809

0.274

0.871

BMI^a

0.427

0.693

0.206

DM

1.302 (0.338)

0.026 (0.698)

0.214 (0.811)

HTN

2.437 (0.122)

2.189 (0.167)

0.405 (0.548)

Intubation

14.465 (0.001)

0.754 (0.483)

13.087 (< 0.001)

Transfusion

0.192 (0.667)

0.141 (0.707)

0.190 (0.738)

E-fast

3.313 (0.097)

0.000 (> 0.999)

0.913 (0.339)

ICU care

8.361 (0.004)

2.925 (0.087)

8.692 (0.003)

Gustilo‒Anderson type

30.916 (< 0.001)

10.818 (0.025)

38.985 (< 0.001)

Existence of infection

11.491 (0.002)

0.055 (0.733)

0.804 (0.370)

Time to emergency operation^a

0.442

0.140

0.005

Bony loss

38.704 (< 0.001)

2.459 (0.136)

27.743 (< 0.001)

External fixator

8.661 (0.003)

3.012 (0.103)

2.346 (0.126)

Vessel injury

19.759 (0.001)

28.068 (< 0.001)

33.823 (0.000)

Angioplasty

.562 (> 0.999)

1.929 (0.255)

0.004 (> 0.999)

Plastic department intervention

1.952 (0.194)

0.144 (0.781)

0.000 (> 0.999)

Reconstructive option

4.933 (0.115)

5.574 (0.109)

2.095 (0.569)

Complication

2.521 (0.244)

1.370 (0.616)

1.231 (0.390)

Patient survival

4.962 (0.082)

0.306 (> 0.999)

5.457 (0.051)