Table 2.

Association between PTP1B expression and clinicopatho-logical parameters

Clinicopathologic parameter	PTP1B- positive	PTP1B- negative	Spearman's ρ	p value
Mean tumor size (mm)	30.6	30.7	0.019	0.4797
Mean age at diagnosis (years)	63.1	63.8	–0.029	0.3159

	n (%)	n (%)	Spearman's ρ	p value
Tumor stage			0.017	0.6283
pT1	178 (46.2)	207 (53.7)
pT2	371 (50.3)	367 (49.7)
pT3	52 (48.6)	55 (51.4)
pT4	82 (47.7)	90 (52.3)
Tumor grade			–0.018	0.4753
1	157 (48.5)	167 (51.5)
2	291 (50.5)	285 (49.5)
3	235 (46.8)	267 (53.2)
Lymph node stage			–0.026	0.6210
pN0	363 (50.1)	362 (49.9)
pN1	257 (47.6)	283 (52.4)
pN2	63 (47.0)	71 (52.9)
Estrogen receptor			–0.066	0.0137
ER+	527 (50.7)	513 (49.3)
ER–	153 (43.1)	202 (56.9)
HER2			–0.044	0.0985
HER2+	142 (53.1)	125 (46.8)
HER2–	537 (47.5)	592 (52.4)