Using Nodal Ratios to Predict Risk of Regional Recurrences in Patients Treated with Breast Conservation Therapy with 4 or More Positive Lymph Nodes

Table 1

Patient characteristics as a function of nodal ratio.

Clinical parameter	LNR; 𝑛 (%)	INR; 𝑛 (%)	HNR; 𝑛 (%)	Total; 𝑛 (100%)
Patient age
<50 years	3 (15)	11 (52)	7 (33)	21
≥50 years	13 (38)	11 (31)	11 (31)	35
Tumor size
T1	6 (21)	11 (39)	11 (39)	28
T2	10 (36)	11 (39)	7 (25)	28
Pathologic subtype
Invasive ductal	16 (31)	20 (38)	16 (31)	52
Invasive lobular	0 (0)	1 (50)	1 (50)	2
Other	0 (0)	1 (50)	1(50)	2
Estrogen status
Positive	9 (35)	11 (42)	6 (23)	26
Negative	4 (19)	8 (38)	9 (43)	21
Progesterone status
Positive	10 (39)	11 (42)	5 (19)	26
Negative	3 (17)	6 (33)	9 (50)	18
Chemotherapy
Yes	10 (63)	20 (91)	16 (89)	46
No	6 (37)	2 (9)	2 (11)	10

Abbreviations/definitions: LNR = low nodal ratio <40%; INR = Intermediate Nodal Ratio, 40%–70%; HNR = High Nodal Ratio >70%.