Table 5.
Impact of surgical margin status on five-year disease-specific and overall survival rates in the internal grouping (pathological stage and treatment modality) of Hospital 1 and Hospital 2.
| Characteristic (n, %) | Five-year disease-specific survival(margin ≥5 mm vs. <5 mm) | p | Five-year overall survival(margin ≥5 mm vs. <5 mm) | p |
|---|---|---|---|---|
| Hospital 1 (n = 2009) | 82% / 74% | <0.0001 | 75% / 64% | <0.0001 |
| Pathological stage | ||||
| I-II (755, 37.6) | 92% / 92% | 0.9690 | 87% / 86% | 0.8202 |
| III-IV (1254, 62.4) | 74% / 67% | 0.0030 | 66% / 55% | 0.0013 |
| Treatment modality | ||||
| Surgery (987, 49.1) | 88% / 86% | 0.3469 | 81% / 77% | 0.2758 |
| Surgery plus adjuvant therapy (1022, 50.9) | 74% / 68% | 0.0278 | 66% / 58% | 0.0229 |
| Hospital 2 (n = 1019) | 80% / 70% | 0.0006 | 75% / 64% | 0.0010 |
| Pathological stage | ||||
| I-II (468, 45.9) | 90% / 87% | 0.2411 | 88% / 82% | 0.1856 |
| III-IV (551, 54.1) | 68% / 58% | 0.0161 | 60% / 50% | 0.0327 |
| Treatment modality | ||||
| Surgery (553, 54.3) | 88% / 79% | 0.0409 | 83% / 73% | 0.0486 |
| Surgery plus adjuvant therapy (466, 45.7) | 70% / 61% | 0.0089 | 65% / 54% | 0.0091 |