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Comparision of location distribution of top two histologic types
| Location | Chordoma (n = 316) | Giant cell tumor (n = 205) | P value |
|---|---|---|---|
| Region S1 or S2 or S1-2 | 5 (1.6%) | 80 (39.0%) | <0.001 |
| Region S3 and below S3 | 145 (45.9%) | 11 (5.4%) | |
| Associated with both two regions | 166 (52.5%) | 114 (55.6%) |
