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Distribution of disease stage according to tumor size
| Tumor size (mm) | ||||||
|---|---|---|---|---|---|---|
| Stage of disease | ≤20 | 21~30 | 31~50 | 51~70 | ≥71 | Total |
| N0M0 | 126 | 126 | 146 | 68 | 26 | 491 |
| N1M0 | 13 | 29 | 48 | 24 | 19 | 133 |
| N2M0 | 32 | 52 | 103 | 49 | 29 | 266 |
| N0-2M1/N3M0-1 | 7 | 7 | 7 | 2 | 4 | 27 |
| Total (% of N0M0) | 178(70.79) | 214(58.88) | 304(48.03) | 143(47.55) | 78(33.33) | 917(53.65) |
