Determination of GP88 (progranulin) expression in breast tumor biopsies improves the risk predictive value of the Nottingham Prognostic Index

Table 1 Patients and tumor characteristics of the study cohort

Characteristics	Groups	Number	Percent
Age at Dx	Median	61	N/A
Age at Dx	Range	24–93	N/A
Race	Caucasian	276	54
	African American	42	8
	Asian	8	2
	Unknown	182	36
ER	Positive	508	100
PR	Positive	307	60
	Negative	140	28
	Unknown	61	12
Tumor size	<2.5 cm	346	68
	2.5–5 cm	137	27
	>5 cm	25	49
Tumor grade	Grade 1	46	9
	Grade 2	220	43
	Grade 3	242	48
Stage	Stage 1	221	44
	Stage 2	231	45
	Stage 3	56	11
Lymph node	Negative	267	53
Lymph node	Positive	241	47
NPI	≤3.4	155	30
	3.4–5.4	244	48
	>5.4	109	22
GP88	<3+	446	88
GP88	3+	62	12

ISSN: 1746-1596