Table 1.
Patient characteristics based on tumor stage
| Variable | Total sample size (n = 158) |
|
|---|---|---|
| Stage II (n = 92) | Stage III (n = 66) | |
| Age Group (years) | ||
| <65 | 43 (47%) | 30 (45%) |
| ⩾65 | 49 (53%) | 36 (55%) |
| Gender | ||
| Male | 62 (67%) | 40 (61%) |
| Female | 30 (33%) | 26 (39%) |
| pT component of stage (bowel wall invasion) | ||
| pT1 | – | 1 (2%) |
| pT2 | – | 12 (18%) |
| pT3 | 67 (73%) | 34 (51%) |
| pT4 | 25 (27%) | 19 (29%) |
| pN component of stage (nodal involvement) | ||
| N0 | 92 (100%) | – |
| N1 | – | 41 (62%) |
| N2–3 | – | 25 (38%) |
| Tumor location | ||
| Colon | 70 (76%) | 51 (77%) |
| Rectum | 22 (24%) | 15 (23%) |
| Tumor size (cms) | ||
| ≤5 | 47 (51%) | 46 (70%) |
| >5 | 45 (49%) | 20 (30%) |
| Tumor differentiation | ||
| Low grade | 82 (89%) | 50 (76%) |
| High grade | 10 (11%) | 16 (24%) |
| Bcl-2 expression | ||
| Low (ISS* < 0.5) | 35 (38%) | 34 (52%) |
| High (ISS ⩾ 0.5) | 57 (62%) | 32 (48%) |
| Vital status (at follow-up) | ||
| Alive | 37 (40%) | 18 (27%) |
| Colon Cancer** | 19 (21%) | 31 (47%) |
| Other*** | 36 (39%) | 17 (26%) |
*
ISS = Immuno staining score.
**
Dead due to colorectal cancer.
***
Death due to causes other than colorectal cancer or unknown.