Factors Category Univariate analysis Multivariate analysis
    Odds ratio Pvalue Odds ratio Pvalue
Nuclear grade 3 vs 2.1 0.440 0.033 1.107 0.825
ER + vs - 3.027 <0.0001 2.148 0.041
HER2 + vs - 0.404 0.001 0.656 0.247
Ki-67 + vs - 0.443 0.002 0.647 0.197
p53 overexpression + vs - 0.475 0.016 1.062 0.883
Table 2: Multivariate analysis of factors for invasion in DCIS and T1a tumors.