Table 1. Clinical data of 71 patients with pancreatic cancer.
| Parameter | Metastases-negative group | Oligonodular metastases groupa | Multinodular metastases groupb | Pc |
| Age (years, range) | 61 (49–82) | 57 (42–77) | 62 (20–74) | 0.532d |
| Sex | 0.771 | |||
| Male | 15 | 9 | 25 | |
| Female | 5 | 4 | 13 | |
| Tumor location | 0.704 | |||
| Pancreatic head | 15 | 8 | 27 | |
| Others | 5 | 5 | 11 | |
| History | 0.746 | |||
| Elevated CA-199 | 17 | 9 | 30 | |
| Elevated CEA | 6 | 4 | 10 | |
| With Jaundice | 9 | 6 | 20 | |
| With DM | 4 | 3 | 8 | |
| ECOG | 0.642 | |||
| 0 | 6 | 6 | 14 | |
| 1 | 14 | 7 | 24 | |
| Local treatments | 0.227 | |||
| RFA | 2 | 2 | 12 | |
| 125I | 10 | 5 | 9 | |
| RFA + 125I | 8 | 6 | 17 | |
| Chemotherapy | 0.110 | |||
| No | 12 | 6 | 29 | |
| Yes | 8 | 7 | 9 |
CA-199, carbohydrate antigen 199; CEA, cancer embryo antigen; DM, diabetes mellitus; ECOG, Eastern Cooperative Oncology Group; RFA, radiofrequency ablation; 125I, 125I radioactive seed implantation. a Oligonodular metastases were defined as ≤3 metastatic lesions. b Multinodular metastases were defined as >3 metastatic lesions. c Except what was specially marked, P values were obtained with the Pearson χ2 test. dObtained with one-way ANOVA.