Skip to main content

Table 4 Multivariate Cox regression models for disease-free survival and overall survival in patients with invasive ductal carcinoma and patients with invasive lobular carcinoma

From: Infiltrating lobular carcinoma of the breast: tumor characteristics and clinical outcome

  DFS OS
Parameter RR (95% CI) P RR (95% CI) P
Nodes     
   0 1 <0.0001 1 <0.0001
   1–3 1.8 (1.6–1.9)   1.4 (1.3–1.5)  
   >3 3.4 (3.1–3.6)   2.4 (2.2–2.5)  
Tumor size (cm)     
   ≤2 1 <0.0001 1 <0.0001
   2–5 1.5 (1.4–1.6)   1.4 (1.3–1.5)  
   >5 1.9 (1.7–2.1)   2.0 (1.8–2.1)  
Age (years)     
   ≤50 1 0.0005 1 <0.0001
   >50 1.1 (1.0–1.2)   1.9 (1.7–2.0)  
S-phase     
   Low 1 <0.0001 1 <0.0001
   Intermediate 1.4 (1.3–1.5)   1.3 (1.2–1.3)  
   High 1.5 (1.4–1.7)   1.4 (1.3–1.5)  
PgR     
   Positive 1 <0.0001 1 0.0014
   Negative 1.3 (1.2–1.4)   1.3 (1.2–1.4)  
ER     
   Positive 1 0.0017 1 0.048
   Negative 1.1 (1.0–1.2)   1.1 (1.0–1.2)  
  1. CI, confidence interval; DFS, disease-free survival; ER, estrogen receptor; OS, overall survival; PgR, progesterone receptor; RR, relative risk.