| Ki67 index | PTBE (−ve) | PTBE (+ve) | Total |
| Ki67 < 3% | 24 (66.67%) | 12 (33.33%) | 36 (100%) |
| Ki67 > 3% | 5 (25%) | 15 (75%) | 20 (100%) |
| Total | 29 (51.79%) | 27 (48.21%) | 56 (100%) |
| Total | Mean Ki 67% PTBE (−ve) | Mean Ki 67% PTBE (+ve) | P value |
| 56 patients | 1.83 ± 1.95 SD | 4.83 ± 4.92 SD | 0.014 |