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Significantly different frequencies of chromosomal imbalances in early compared to advanced NPC.
| Selected Region | Stage (%) | Fisher's exact | ||
| I-II (n = 28) | III-IV (n = 80) | |||
| Gain | +1q22-q23.3 | 10.71 | 36.25 | 0.015 |
| +1q31.1-q32.3 | 10.71 | 32.50 | 0.015 | |
| +18p | 00.00 | 21.25 | 0.005 | |
| +18q21.1-q21.33 | 00.00 | 20.00 | 0.010 | |
| Loss | -3p12.3-p14.1 | 14.29 | 42.50 | 0.010 |
| -3p25.1-p26.3 | 10.71 | 37.50 | 0.008 | |
| -11q23.1-q25 | 10.71 | 33.75 | 0.026 | |
| -16q13-q24.3 | 14.29 | 37.50 | 0.032 | |
