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Subgroup analysis of patients treated with surgery alone and margin status <5 mm: additional stratification of margins ≤2 mm versus >2 mm.
| Surgery alone /Characteristics | Hospital 1(n = 987) | Hospital 2(n = 553) | p |
|---|---|---|---|
| Margin status <5 mm | 235 | 348 | <0.0001 |
| ≤2 mm | 80 (34.0) | 191 (54.9) | |
| >2 mm | 155 (66.0) | 157 (45.1) |
