Table 4. Tumor grade and progression rates correlation.
| Progression | Low grade (n=72) | High grade (n=28) | P value |
|---|---|---|---|
| Local progression | 4 (5.6%) | 9 (32.1%) | 0.001 |
| Systemic progression | 5 (6.9%) | 10 (35.7%) | 0.001 |
| Overall progression | 9 (12.5%) | 19 (67.9%) | 0.000 |
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