Table 2

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

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


*ANOVA was used to compare the means of the three groups

** P-values were calculated with the use of the χ2 test

Albergaria et al. BMC Cancer 2011 11:299   doi:10.1186/1471-2407-11-299

Open Data