Clinicopathological, Karyometric, and Immunohistochemical Characteristics of Breast Cancer Cases and by ER and PR status.

1Ps for categorical variables were estimated from χ2 tests. P for the comparison of median ages was esimated from Wilcoxon Rank-Sum test and Ps for other continuous variables were estimated from t-tests.2Histology, lymph node metastasis, grade, MIB1, P53 expression and DNA ploidy index, were unknown for 2, 7, 106, 121, 230 and 1 cases, respectively.3Data on nuclear are, perimeter and DNA shape were available for only 353 cases.4Mean ±standard deviation.