Table 3.
Kaplan–Meier analysis overall survival for chordoma patients based on primary site and disease stage
| Characteristic | 5-year overall survival, % | 10-year overall survival, % | Median overall survival (months) | Kaplan-Meier | |
|---|---|---|---|---|---|
| Log rank χ2 test | p value | ||||
| Primary site | 35.462 | < 0.001 | |||
| Bones of skull and face and associated joints | |||||
| Married | 81.0 | 68.3 | 253.0 | ||
| Divorced/separated | 65.8 | 44.9 | 106.0 | ||
| Widowed | 45.3 | 18.1 | 42.0 | ||
| Single | 85.0 | 71.8 | – | ||
| Vertebral column | 38.754 | < 0.001 | |||
| Married | 68.2 | 38.9 | 97.0 | ||
| Divorced/separated | 82.8 | 40.9 | 102.0 | ||
| Widowed | 32.5 | 0.0 | 33.0 | ||
| Single | 74.1 | 58.3 | 141.0 | ||
| Pelvic bone, sacrum, coccyx, and associated joints | 7.278 | 0.064 | |||
| Married | 69.6 | 44.9 | 106.0 | ||
| Divorced/separated | 62.6 | 45.0 | 81.0 | ||
| Widowed | 54.7 | 19.6 | 63.0 | ||
| Single | 63.1 | 32.4 | 80.0 | ||
| Disease stage | |||||
| Localized | 33.341 | < 0.001 | |||
| Married | 78.1 | 57.8 | 166.0 | ||
| Divorced/separated | 78.5 | 58.5 | 146.0 | ||
| Widowed | 47.0 | 10.4 | 59.0 | ||
| Single | 87.2 | 65.8 | 178.0 | ||
| Regional | 31.648 | < 0.001 | |||
| Married | 74.4 | 50.3 | 121.0 | ||
| Divorced/separated | 68.4 | 40.7 | 87.0 | ||
| Widowed | 40.0 | 13.3 | 46.0 | ||
| Single | 76.5 | 59.7 | – | ||
| Distant | 17.771 | < 0.001 | |||
| Married | 59.4 | 39.9 | 80.0 | ||
| Divorced/separated | 0.0 | 0.0 | 12.0 | ||
| Widowed | 28.6 | 0.0 | 16.0 | ||
| Single | 42.3 | 30.2 | 32.0 | ||
Note: p value < 0.05 are shown in bold