Table 7.
Multivariate logistic regression analysis using two parameters reaching p < 0.05 in univariate testing with the UCLA activity score as a representative clinical measurement.
| Variables | Odds Ratio | 95% CI | p Value | VIF |
|---|---|---|---|---|
| UCLA activity score | 0.49 | 0.28–0.84 | 0.0099 | 1.16 |
| Age | 1.07 | 1.02–1.12 | 0.0027 | 1.27 |
| Previous history of DVT | 74.98 | 8.54–658.18 | <0.0001 | 1.17 |
| Current anticoagulant use | 0.34 | 0.056–2.06 | 0.24 | 1.20 |
| Collagen disease | 1.03 | 0.23–4.68 | 0.97 | 1.55 |
| Current steroid use | 9.32 | 2.14–40.68 | 0.0030 | 1.69 |
UCLA: University of California Los Angeles, DVT: deep venous thrombosis, CI: confidence interval, and VIF: variance inflation factor.