Table 2: Effective factors on amputation (results of logistic regression analysis).

Parameters Amputation OR 95% GA P Admission time  Earlier than 6 hours 1 0.0013  Later than 6 hours 40.3 5.3–304.9 Existence of atherosclerosis  Absent 1 0.587  Present 1.23 0.58–2.62 Sex  Female 1 0.258  Male 0.68 0.35–1.33 Re-embolectomy  Not performed 1 <0.0005  Performed 42.8 16.4–111.6