Table 2 Multivariate analyses of risk factors associated with DVT of lower extremity following isolated patella fracture

Arrhythmia

4.41 (1.20-16.15)

0.025

Intra-operative blood loss

1.01 (1.00-1.02)

0.023

Surgical duration

1.04 (1.03-1.06)

0.000

Preoperative stay (delay of each day)

1.43 (1.15-1.78)

0.001

LDL-C (> 3.37 mmol/L)

2.98 (1.14-7.76)

0.025

Age category

0.019

 18–44

Reference

 45–64 (1)

1.26 (0.39-4.04)

0.700

 65 or older (2)

4.44 (1.34-14.71)

0.015