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Table 2 Nottingham Prognostic Index components on triple-negative and non-triple-negative breast cancer subtypes

From: Nottingham Prognostic Index in Triple-Negative Breast Cancer: a reliable prognostic tool?

  Nottingham Prognostic Index Components
Molecular Subtype Tumour Size
Mean ± St. Error
Tumour Grade Lymph Node Status
     I II III None 1 < LNS < 3 LNS > 3
Luminal 2.92 cm ± 0.105 24.1% 38% 38% 43.9% 26.7% 29.4%
  (N = 302) (N = 324) (N = 262)
HER-OE 3.08 cm ± 0.203 4.9% 16.5% 78.6% 42.4% 24.2% 33.3%
  (N = 93) (N = 103) (N = 99)
Triple Negative (TNBC) 3.70 cm ± 0.211 4.9% 23.9% 71.2% 48.6% 25% 26.4%
  (N = 155) (N = 163) (N = 148)
   Luminal P-value*       
Statistics TNBC vs   p < 0.001 P-value**
< 0.0001
P-value**
Not significant
   HER2-OE P = 0.05       
  1. *ANOVA was used to compare the means of the three groups
  2. ** P-values were calculated with the use of the χ2 test