Table 2.
Univariate analysis of the prognostic factors of primary spinal chordoma patients
| Variable | 5-year overall survival (%) | Median overall survival (months) | p value |
|---|---|---|---|
| Age in years | < 0.001 | ||
| 0–20 | 65.5 | 138 | |
| 21–59 | 84.4 | 146 | |
| 60+ | 56.1 | 69 | |
| Gender | 0.192 | ||
| Female | 71.1 | 99 | |
| Male | 65.8 | 89 | |
| Race | 0.061 | ||
| White | 59.0 | 91 | |
| Black | 67.3 | 114 | |
| Other | 68.1 | 85 | |
| Primary site | 0.992 | ||
| Vertebrae | 68.0 | 95 | |
| Sacrum/pelvis | 68.5 | 92 | |
| Disease stage | < 0.001 | ||
| Localized/regional | 69.6 | 102 | |
| Distant | 51.6 | 80 | |
| Unstaged | 61.7 | 86 | |
| Therapy performed | < 0.001 | ||
| Non-surgical | 48.2 | 56 | |
| Surgical | 74.7 | 111 | |
| Marital status | 0.454 | ||
| Unmarried | 69.5 | 98 | |
| Married | 68.0 | 91 | |
| Rural or urban | 0.326 | ||
| Rural | 64.4 | 91 | |
| Urban | 69.5 | 95 |
Calculated using log-rank test, p < 0.01 considered statistically significant