Mean Ki-67 MIB1 labelling index values according to the 2004 WHO categories in stage Ta and T1 bladder urothelial cell tumours
| N | Mean ki-67 MIB1 LI | 95% CI | p Value | |
|---|---|---|---|---|
| *Mean comparison by ANOVA; †t test for equality of means. | ||||
| CI, confidence interval; LI, labelling index; PUNLMP, papillary urothelial neoplasia of low malignant potential. | ||||
| Non-invasive (stage Ta) (N = 80) | <0.0001* | |||
| Papilloma | 5 | 2.892 | 0.9114 to 4.8726 | |
| PUNLMP | 26 | 2.938 | 1.5172 to 4.3605 | |
| Low grade | 34 | 4.635 | 2.5003 to 6.7703 | |
| High grade | 15 | 17.222 | 7.1047 to 27.3393 | |
| Invasive (stage T1) (N = 84) | 0.013† | |||
| Low grade | 58 | 5.070 | 3.8075 to 6.3339 | |
| High grade | 26 | 13.079 | 7.0432 to 19.1160 | |