Table 2.
Association between ploidy and clinical pathological variables in peritoneal carcinomatosis
| Clinical variable | Multiploid | Hypodiploid | Diploid | Hyperdiploid | P-value |
|---|---|---|---|---|---|
| Median PCI (range) | 23.5 (8–30) | 18 (6–31) | 20.5 (7–39) | 19.5 (4–39) | 0.851 |
| Median age (range) (years) | 63 (45–75) | 57 (40–76) | 48.5 (29–76) | 55.5 (33–79) | 0.657 |
|
| |||||
| Recurrence | No (%) | P-value | |||
|
| |||||
| No | 2 (22.2) | 4 (28.6) | 6 (50) | 11 (61.1) | 0.992 |
| Yes | 7 (77.8) | 10 (71.4) | 6 (50) | 7 (38.9) | |
|
| |||||
| Proliferation rate | No (%) | P-value | |||
|
| |||||
| Low (<14.9%) | na | 5 (35.7) | 9 (75.0) | 8 (44.4) | 0.725 |
| High (≥14.9%) | na | 9 (64.3) | 3 (25.0) | 10 (55.6) | |
Notes: The PCI is used to assess the extent of peritoneal cancer throughout the peritoneal cavity. For this purpose, the peritoneal cavity is divided into 13 regions to which a score is given based on the size of the largest tumor nodule (score 0, no tumor; score 1, lesions <0.5 cm; score 2, 0.5–5 cm; score 3, lesions >5 cm). The PCI is calculated by adding the scores of all 13 regions together with a maximum score of 39.
Abbreviations: PCI, peritoneal cancer index; na, not assessed.