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Frequent copy number variations
| Cytoband (Gene) | CNV | Larynx n=72, % | Non-larynx n=172, % |
| Common copy number variations (CNV), either amplifications or deletions, in HPV negative samples of the TCGA cohort. * P<0.05. | |||
| 3q26 (PIK3CA, SOX2) | Amp | 37.5* | 12.8 |
| 11q13 (CCND1, FGF3/4/19) | Amp | 36.1 | 29.1 |
| 9p21 (CDKN2A/B) | Del | 31.9 | 32.0 |
| 3q28 (TP63, ETV5) | Amp | 34.7* | 12.8 |
| 8q24 (MYC, PTK2) | Amp | 16.7 | 12.2 |
| 7p12 (EGFR) | Amp | 12.5 | 12.2 |
| 9q34 (NOTCH1, TRAF2) | Amp/Del | 4.2*/1.4 | 0/0 |
