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Table 2 Multivariable logistic regression

From: Unexpected features of breast cancer subtype

Variable ≥1 Positive LN (N = 343) ≥4 Positive LN (N = 149)
OR (95 % CI) p value OR (95 % CI) p value
Subtypeª   0.227   0.561
 Luminal A 1   1  
 luminalHer2− 0.7 (0.4–1.2)   1.0 (0.5–2.0)  
 luminalHer2+ 0.7 (0.4–1.4)   1.1 (0.5–2.7)  
 TNBC 0.7 (0.4–1.2)   0.8 (0.4–1.7)  
 Her-2+ 1.2 (0.6–2.1)   1.4 (0.7–3.0)  
Tumor size (cm)   <0.0001   0.001
 <2 1   1  
 2~5 2.3 (1.6–3.4)   2.4 (1.5–4.0)  
 >5 2.7 (0.7–10.2)   6.2 (1.5–26.4)  
Grade   <0.0001   0.015
 1 1   1  
 2 5.6 (2.8–11.2)   17.5 (2.4–130.5)  
 3 4.5 (2.1–9.8)   22.9 (3.0–176.3)  
Age level   0.548   0.676
 <50 1   1  
 50–79 0.9 (0.6–1.3)   1.1 (0.7–1.8)  
 >79 2.1 (0.3–13.1)   2.1 (0.3–13.8)  
  1. Bold values are statistically significant (p < 0.05)
  2. LN lymph node, OR odds ratio
  3. ªSubtypes as defined as luminal A (ER+/PR+, HER2−, Ki67 < 14 % or PR ≥ 20 %), luminalHer2− (ER+/PR+, HER2−, Ki67 ≥ 14 % or PR < 20 %), luminalHer2+ (ER+ and HER-2+), TNBC (ER− and PR− and HER2−) and HER-2+ (ER− and PR− and HER-2+)