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1p 19q status in CFO and NCFO. Abbreviations: CFO = tumor with features classic for oligodendroglioma; NCFO = tumor with features not classic for oligodendroglioma.
| 1p 19q deletion | 1p 19q intact | 19q loss | 1p loss | Total (n) | |
|---|---|---|---|---|---|
| CFO | 78 (80%) | 5 (5%) | 8 (8%) | 6 (6%) | 97 |
| NCFO | 13 (13%) | 55 (56%) | 22 (22%) | 9 (9%) | 99 |
| Total (n) | 91 | 60 | 30 | 15 | 196 |
