The Prognostic Value of Lymph Node Cross-Sectional Cancer Area in Node-Positive Breast Cancer: A Comparison with N Stage and Lymph Node Ratio

Table 2

Prognostic factors and overall survival rate (univariate analysis by Kaplan-Meier).

	5-year OS% ± SE	𝑃 value
Age
≤50	84 ± 4	0.6
>50	82 ± 2
Histologic grade
G1	90 ± 5
G2	89 ± 3	0.001
G3	73 ± 4
N stage
N0	94 ± 2
N1	86 ± 4	<0.0001
N2	53 ± 10
N3	46 ± 12
T stage
T1	92 ± 2
T2	84 ± 36	<0.0001
T3	43 ± 13
T4	36 ± 12
ER
Yes	89 ± 2	<0.0001
No	62 ± 6
ECE
Yes	93 ± 20	<0.0001
No	63 ± 6
LN CSCA (mm^2)
0 (N0)	94 ± 22
<50	85 ± 54	<0.0001
50–500	65 ± 7
>500	46 ± 13
LNR
0 (N0)	94 ± 22
<0.1	90 ± 4	<0.0001
0.1–0.65	79 ± 5
>0.65	28 ± 10