Apparent lack of prognostic value of MIB-1 index in anal carcinomas treated by radiotherapy.

of patients N-stage No/N1-3 Gender Male/female Age < 65/ > 65 years Tumour location Canal/canal and or margin Histology Squamous/basaloid or transitional T-stage T1-2fT3-4 Tumour extent < 1/3 circumference/ > 1/3 43/11 15/40 28/27 42/13 32/23 34/21 24/31 reaching a statistically significant level (P < 0.05) was lymph node involvement, whereas tumour extension over more than one-third of the circumference was of borderline significance (P = 0.07).

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