Table 2.
Single and multi-factor logistic regression analysis for the modeling group.
| Variables | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| OR (95% CI) | p value | OR (95% CI) | p value | |
| Age(years) | 1.010(1.002-1.018) | <0.05 | 0.997(0.986-1.008) | 0.574 |
| Survival time(month) | 0.984(0.973-0.994) | <0.01 | 0.999(0.999-1.011) | 0.835 |
| Race | ||||
| White | Ref | Ref | Ref | Ref |
| Black | 1.576(0.927-2.679) | 0.093 | / | / |
| Other | 1.138(0.567-2.285) | 0.716 | / | / |
| Sex | ||||
| Male | Ref | Ref | Ref | Ref |
| Female | 1.241(0.818-1.883) | 0.311 | / | / |
| Primary site | ||||
| Limb bones | Ref | Ref | Ref | Ref |
| Axis of a bone | 1.143(0.905-2.286) | 0.124 | / | / |
| other | 1.562(0.787-3.102) | 0.203 | / | / |
| Laterality | ||||
| Left | Ref | Ref | Ref | Ref |
| Right | 1.615(1.015-2.572) | <0.05 | 1.559(0.955-2.547) | 0.076 |
| Other | 1.625(0.865-3.052) | 0.131 | 0.997(0.487-2.039) | 0.992 |
| T | ||||
| T1 | Ref | Ref | Ref | Ref |
| T2 | 1.131(0.657-1.148) | 0.657 | 0.948(0.537-1.675) | 0.855 |
| T3 | 2.787(0.984-7.892) | 0.054 | 1.498(0.492-4.567) | 0.477 |
| TX | 4.179(2.371-7.363) | <0.001 | 2.330(1.265-4.292) | <0.01 |
| M | ||||
| M0 | Ref | Ref | Ref | Ref |
| M1 | 3.842(2.505-5.892) | <0.001 | 3.182(1.606-6.302) | <0.01 |
| Surgery | ||||
| No | Ref | Ref | Ref | Ref |
| Yes | 0.250(0.162-.0387) | <0.001 | 0.455(0.267-0.774) | <0.01 |
| Radiation | ||||
| No | Ref | Ref | Ref | Ref |
| Yes | 1.634(0.947-2.821) | 0.078 | / | / |
| Chemotherapy | ||||
| No | Ref | Ref | Ref | Ref |
| Yes | 0.491(0.312-0.771) | <0.01 | 0.510(0.287-0.906) | <0.05 |
| Bone metastases | ||||
| No | Ref | Ref | Ref | Ref |
| Yes | 3.378(1.707-6.682) | <0.001 | 1.371(0.631-1.655) | 0.425 |
| Lung metastases | ||||
| No | Ref | Ref | Ref | Ref |
| Yes | 2.823(1.800-4.428) | <0.001 | 0.826(0.412-1.655) | 0.589 |
OR, odds ratio; CI, confident interval; T, stage; M, metastasis.