Table 1.

General status of subjects.

Group	PP	GP	t/χ2	p
Number	42	41	–	–
Age	53.02 ± 9.64	52.59 ± 9.46	−0.209	0.835
HR
Negative	22	13	3.636	0.057
Positive	20	28
HER2
3+	32	31	0.004	0.951
2+ FISH positive	10	10
Physical status (ZPS)
<2	41	41	–	1
≥2	1	0
Previous use of chemotherapeutic drugs
Paclitaxel	32	31	0.004	0.951
Anthracycline	33	27	1.675	0.196
Cyclophosphamide	28	23	0.978	0.323
Recurrence or metastasis within 12 months after (adjuvant) chemotherapy
Yes	16	12	0.725	0.696
No	16	18
–	10	11
Liver metastasis was initially diagnosed
Yes	10	10	0.004	0.951
No	32	31