Short-Term Prognostic Index for Breast Cancer: NPI or Lpi

Table 1

Patients’ characteristics.

Characteristic	No. of Patients; (n = 1818)	%
Age, years
Median	57
Lower-upper quartiles	48–67
Histologic grade
low	242	13.31
intermediate	823	45.27
high	753	41.42
Tumor size, cm
Median	2.3
Lower-upper quartiles	1.5–3.5
No. of lymph nodes removed
Median	16
Lower-upper quartiles	12–21
No. of positive lymph nodes
Median	0
Lower-upper quartiles	0-1
Range	0–42
Pathologic nodal stage (pN)
0	1123	61.77
1–3	456	25.08
>3	239	13.15
Node ratio
Median	0.04
Lower-upper quartiles	0.03–0.14
Adjuvant treatment
No adjuvant treatment	37	0.02
Radiotherapy	1519	83.55
Chemotherapy	655	36.03
Endocrine Therapy	1430	78.66