TABLE 5.
Clinicopathologic Features of Patients Who Received Adjuvant Chemotherapy or Chemotherapy Followed by Radiation After Resection of Pancreatic Cancer
| Categorical Variable | Chemo | Chemo-RT | P Value |
|---|---|---|---|
| Median survival (mo) | 21.0 | 24.8 | <0.0001 |
| Grade | |||
| 1 | 266 (8.3%) | 288 (8.9%) | 0.622 |
| 2 | 1692 (52.5%) | 1668 (51.8%) | |
| 3 | 1227 (38.1%) | 1235 (38.3%) | |
| 4 | 38 (1.2%) | 31 (1.0%) | |
| Stage | |||
| 1 | 79 (2.3%) | 84 (2.5%) | 0.897 |
| 2 | 3224 (94.3%) | 3223 (94.3%) | |
| 3 | 115 (3.4%) | 111 (3.2%) | |
| T | |||
| 1 | 79 (2.3%) | 79 (2.3%) | 0.999 |
| 2 | 296 (8.8%) | 297 (8.8%) | |
| 3 | 2912 (86.4%) | 2910 (86.4%) | |
| 4 | 83 (2.5%) | 84 (2.5%) | |
| Comorbidities | |||
| No | 2294 (67.1%) | 2328 (68.1%) | 0.394 |
| Yes | 1124 (32.7%) | 1090 (31.9%) | |
| Tumor size (mm) | 35.8±25.9 | 36.0±35.0 | 0.814 |
| # of examined nodes | 18.0±9.6 | 18.0±9.6 | 0.847 |
| # of positive nodes | 3.50±3.42 | 3.41±3.40 | 0.288 |
| LNR | 0.22±0.21 | 0.21±0.20 | 0.366 |
The cohort of propensity score matching of patients with at least 1 high-risk pathologic feature (margin involvement and/or nodal involvement and/or lymphovascular invasion).
All the treatments are in the adjuvant setting. Categorical variables presented in number (%) and continuous variables presented as mean standard deviation.
Chemo indicates chemotherapy; Chemo-RT, chemotherapy followed by radiation; LNR, Lymph node ratio.