Table 2.
Tumor features
| Parameter | n | (%) |
|---|---|---|
| T-Stage | ||
| Tx | 2 | (0.5%) |
| T1 | 29 | (6.8%) |
| T2 | 54 | (12.7%) |
| T3 | 329 | (77.6%) |
| T4 | 10 | (2.4%) |
| Nodal invasion (N1) | 290 | (68.4%) |
| Metastatic disease (M1) | 11 | (2.6%) |
| LNs examined (median/IQR) | 14 | (10–20) |
| Positive LNs (median/IQR) | 1.5 | (0–3) |
| LNR ≥ 0.3 | 83 | (19.6%) |
| Arising in IPMN | 40 | (9.4%) |
| Differentiatioa | ||
| Well | 45 | (10.8%) |
| Moderate | 207 | (49.5%) |
| Poor | 166 | (39.7%) |
| Lymphovascular invasionb | 162 | (43.8%) |
| Perineural invasionc | 341 | (83.0%) |
| AJCC Stage, 7th edm | ||
| I A | 16 | (3.8%) |
| I B | 29 | (6.8%) |
| II A | 82 | (19.3%) |
| II B | 275 | (64.9%) |
| III | 10 | (2.4%) |
| IV | 11 | (2.6%) |
a
6 missing values.
b
54 missing values.
c
13 missing values.
IQR, interquartile range; LN, lymph node; LNR, lymph node ratio; IPMN, intraductal papillary mucinous neoplasm.