| MI - High1 | MI - Low |  |
---|---|---|---|
 | Mean ± SD |  | |
Age | 70.4 ± 12.7 | 68.4 ± 11.8 |  |
 | No. of cases | P | |
Gender | Â | Â | Â |
   Male | 36 | 48 | 0.295 |
   Female | 6 | 14 |  |
Histological Grade | Â | Â | Â |
   Grade 1 | 5 | 29 |  |
   Grade 2 | 16 | 26 | <0.001 |
   Grade 3 | 21 | 7 |  |
Pathological Stage | Â | Â | Â |
   Stage Ta | 9 | 32 |  |
   Stage T1 | 17 | 24 | <0.001 |
   Stage ≥ T2 | 16 | 6 |  |
Relapse | Â | Â | Â |
   Primary | 24 | 42 | 0.273 |
   Recurrence | 18 | 20 |  |