Variable | No of cases | Cyclin D1 expression | P value | pRb expression | P value | ||
---|---|---|---|---|---|---|---|
 |  | Negative | Positive |  | Negative | Positive |  |
Age | Â | Â | Â | Â | Â | Â | Â |
   <70 | 52 | 15 | 37 | 0,139 | 18 | 34 | 0.770 |
   >70 | 59 | 25 | 34 |  | 22 | 37 |  |
Dukes' stage | Â | Â | Â | Â | Â | Â | Â |
   A and B | 60 | 22 | 38 | 0,881 | 22 | 38 | 0.881 |
   C and D | 51 | 18 | 33 |  | 18 | 33 |  |
Differentiation | Â | Â | Â | Â | Â | Â | Â |
   Well + Moderate | 91 | 36 | 55 | 0,099 | 30 | 61 | 0.151 |
   Poor | 20 | 4 | 16 |  | 10 | 10 |  |
Tumor location | Â | Â | Â | Â | Â | Â | Â |
   Proximal | 38 | 12 | 26 | 0,480 | 17 | 21 | 0.168 |
   Distal | 73 | 28 | 45 |  | 23 | 50 |  |
Lymph node metastas | Â | Â | Â | Â | Â | Â | Â |
   Negative | 68 | 22 | 45 | 0,541 | 23 | 45 | 0.541 |
   Positive | 43 | 17 | 26 |  | 17 | 26 |  |
Liver metastasis | Â | Â | Â | Â | Â | Â | Â |
   Negative | 93 | 36 | 57 | 0,182 | 34 | 59 | 0.794 |
   Positive | 18 | 4 | 14 |  | 6 | 12 |  |
Venous invasion | Â | Â | Â | Â | Â | Â | Â |
   Negative | 83 | 31 | 52 | 0,620 | 28 | 55 | 0.385 |
   Positive | 28 | 9 | 19 |  | 12 | 16 |  |