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Table 2 Multivariate logistic regression analysis of variables

From: A nomogram to predict the high-risk RS in HR+/HER2-breast cancer patients older than 50 years of age

Variables OR 95% CI P value
Age (years) 0.98 0.97–1.00 0.066
Tumor size (> 2 cm vs. ≤ 2 cm) 1.12 0.82–1.52 0.487
Histological subtype    0.015
 Mixed vs. IDC 0.41 0.19–0.90 0.026
 Others vs. IDC 0.99 0.57–1.72 0.974
Tumor grade    0.007
 Grade II vs. Grade I 2.08 1.31–3.31 0.002
 Grade III vs. Grade I 2.29 1.24–4.25 0.008
 ER expression 0.99 0.98–1.00 0.032
 PR expression 0.97 0.97–0.98  < 0.001
 KI67 index 1.03 1.02–1.04  < 0.001
 Luminal subtype (Luminal A-like vs. Luminal B-like) 0.92 0.62–1.37 0.672