Table 1.
Demographic, Pathologic, and Recurrence Data.
| Variable | n (%) | n (%) | n (%) |
|---|---|---|---|
| Gender (male vs female) | 46 (63) | 27 (37) | NA |
| Post-operative CA19-9 (≤ 90 vs > 90 U/mL) | 38 (52.1) | 12 (16.4) | NA |
| pT Stage (2 vs 3 vs 4) | 4 (5.5) | 68 (93.2) | 1 (1.4) |
| pN Stage (0 vs 1) | 18 (24.7) | 55 (75.3) | NA |
| Grade (1 vs 2 vs 3) | 4 (5.5) | 57 (78.1) | 12 (16.4) |
| LVSI (present vs absent vs unknown) | 38 (52.1) | 26 (35.6) | 9 (12.3) |
| PNI (present vs absent vs unknown) | 68 (93.2) | 4 (5.5) | 1 (1.4) |
| Margin (positive vs negative) | 14 (19.2) | 59 (80.8) | NA |
| LRR (yes vs no) | 50 (68.5) | 23 (31.5) | NA |
| Location of LRR (tumor bed only vs LN only vs both) | 30 (60.0) | 13 (26.0) | 7 (14.0) |
| LRRO (yes vs no) | 18 (24.7) | 55 (75.3) | NA |
| MR (yes vs no) | 48 (65.8) | 25 (34.2) | NA |
| OR (yes vs no) | 66 (90.4) | 7 (9.6) | NA |
Abbreviations: pT = pathologic tumor, pN = pathologic nodal, LVSI = lymph vascular space invasion, PNI = perineural invasion, LRR = Local regional recurrence, LN = lymph node, LRRO = local regional recurrence only, MR = metastatic recurrence, OR = overall recurrence.