Table 1 Clinical and pathological characteristics of patients
| Â | Total collective | Tohoku University | Hyogo Cancer Centre | |
|---|---|---|---|---|
Frozen blocks available | 213 | 111 | 102 | |
Successful CDK assay | 171 | 90 | 81 | |
Sex | Male | 106 (62%) | 57 (63%) | 49 (60%) |
| Â | Female | 65 (38%) | 33 (37%) | 32 (40%) |
Age | < 70Â years | 83 (49%) | 43 (48%) | 40 (49%) |
|  | ≥ 70 years | 88 (52%) | 47 (52%) | 41 (51%) |
Tumor size | ≤ 3 cm | 95 (56%) | 52 (58%) | 43 (53%) |
| Â | > 3Â cm | 76 (44%) | 38 (42%) | 38 (47%) |
pN | - | 150 (88%) | 83 (92%) | 67 (83%) |
| Â | + | 21 (12%) | 7 (8%) | 14 (17%) |
Stage | IA | 89 (52%) | 48 (53%) | 41 (51%) |
| Â | IB | 45 (26%) | 28 (31%) | 17 (21%) |
| Â | IIA | 31 (18%) | 11 (12%) | 20 (25%) |
| Â | IIB | 6 (4%) | 3 (3%) | 3 (4%) |
Histology | Adenocarcinoma | 118 (69%) | 58 (64%) | 60 (74%) |
| Â | SCC | 53 (31%) | 32 (36%) | 21 (26%) |
Recurrence | None | 134 (78%) | 81 (90%) | 53 (65%) |
| Â | Local | 14 (8%) | 3 (3%) | 11 (14%) |
| Â | Distant | 23 (14%) | 6 (7%) | 17 (21%) |
Survival information | Alive | 133 (78%) | 75 (83%) | 58 (72%) |
| Â | Dead | 38 (22%) | 15 (17%) | 23 (28%) |