A total of 228 primary breast cancer patients who had been received radical operation between March 1955 and December 1974 in our hospital were investigated with regard to the affect of stage decidable factors on prognosis in long-term follow-up.
There were no long-term survival differences between the various T-factor groups. In the n-factor study, especially in the first 10 years, there were long-term survival differences between all ten n-factor groups. However, after 10 years, there were differences between n0 and n1 only. Concerning histological types under the n-factor study, there were no statistically significant differences in survival rate between papillotubular, solid tubular and scirrhous carcinoma.
As a result, n-factor seems to have the greatest effect on the long-term survival rate, especially over 10 years after operation. Twenty year survival rates are needed in the follow-up of breast cancer patients.