Table 1

Univariate prognostic factors in Kaplan–Meier survival analysis (n = 160)

Characteristics	n	Deaths	Mean	SE	Log-rank	P
Age (years)
≤50	76	16	128.630	5.094	2.687	NS
>50	84	28	119.696	5.080
Tumor size (cm)
T1 (≤2)	36	9	126.889	6.230	2.477	NS
T2 (2–5)	109	29	126.098	4.106
T3 (>5)	15	6	94.600	16.976
TNM stage
I	15	3	138.317	4.919	7.773	0.021*
II	96	21	130.343	3.965
III	49	20	105.656	8.066
Histological grade
G1–G2	156	40	125.419	3.596	14.014	<0.001**
G3	4	4	70.250	26.110
Lymph node invasion
N0	66	16	130.921	4.441	8.680	0.034*
N1	49	9	129.939	5.693
N2	37	16	104.480	9.084
N3	8	3	102.750	20.786
ER
Negative	58	23	109.566	6.746	7.721	0.005**
Positive	102	21	131.215	3.947
PR
Negative	81	28	115.971	5.649	4.519	0.034*
Positive	79	16	132.083	4.302
HER2
Negative	117	34	123.780	4.144	0.307	NS
Positive	43	10	124.488	7.355
SHP-1
Low expression	70	27	111.209	6.364	8.253	0.004**
High expression	90	17	133.801	3.795
EGFR
Low expression	131	31	128.792	3.619	7.284	0.007**
High expression	29	13	101.138	10.370
Group
SHP-1 high, EGFR low	81	13	135.984	3.834	13.072	0.004**
SHP-1 low, EGFR low	50	18	117.094	6.852
SHP-1 high, EGFR high	9	4	112.778	13.909
SHP-1 low, EGFR high	20	9	94.250	13.192

*P < 0.05; **P < 0.01.