Table 1.
Characteristics of patients with PDAC in the training set and validation set
| Characteristics | Training set (n = 99) | Validation set (n = 50) | p value |
|---|---|---|---|
| Gender | 0.689 | ||
| Male | 54 (54.5) | 29 (58.0) | |
| Female | 45 (45.5) | 21 (42.0) | |
| Age (years) | 60.17 ± 10.48 | 62.62 ± 9.13 | 0.163 |
| Localization of tumor | 0.013 | ||
| Head-neck | 70 (70.7) | 25 (50.0) | |
| Body-tail | 29 (29.3) | 25 (50.0) | |
| Pathological grade | 0.673 | ||
| Grade 1 | 29 (29.3) | 13 (26.0) | |
| Grade 2/3 | 70 (70.7) | 37 (74.0) | |
| PET/CT findings | |||
| SUVmax | 4.62 (3.40, 6.96) | 5.20 (3.72, 7.20) | 0.408 |
| SUVmean | 2.98 (2.28, 4.28) | 3.64 (2.48, 4.19) | 0.359 |
| MTV (ml) | 11.17 (4.16, 19.62) | 8.86 (2.39, 18.22) | 0.533 |
| TLG | 33.82 (10.55, 66.65) | 30.40 (9.71, 63.90) | 0.816 |
| Lymphatic metastasis | 0.092 | ||
| Present | 58 (58.6) | 22 (44.0) | |
| Absent | 41 (41.4) | 28 (56.0) | |
Continuous data were expressed as mean ± standard deviation or median, with first and third quartile in parentheses. Categorical variables were expressed as numbers, with percentages in parentheses