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Multivariate Cox regression analysis of DSS
| Prognostic factor | p value | HR (95% CI) |
|---|---|---|
| Ifosfamide | 0.030 | 0.40 (0.17–0.92) |
| Pathologic fracture | 0.063 | 2.52 (0.95–6.69) |
| Metastasis at diagnosis | 0.179 | 2.00 (0.73–5.47) |
A Cox regression model was fitted to estimate the effect of ifosfamide on DSS with adjustment for pathologic fracture and metastasis at diagnosis; DSS = disease-specific survival; HR = hazard ratio; CI = confidence interval.
