Adjuvant chemotherapy is an additional option for locally advanced gastric cancer after radical gastrectomy with D2 lymphadenectomy: a retrospective control study

Table 3 Overall survival by groups A, B, C and D

Adjuvant Chemotherapy cycles	Not received (A)	7–8 or 10–12 cycles (B)	4–6 or 6–9 cycles (C)	≤3 or 5 cycles (D)
Adjuvant Chemotherapy cycles	P	P	P	P
Not received (A)		< 0.001	0.004	0.924
7–8 or 10–12 cycles (B)	< 0.001		0.677	< 0.001
4–6 or 6–9 cycles (C)	0.004	0.677		0.005
≤3 or 5 cycles (D)	0.924	< 0.001	0.005

Note: According to the Bonferroni method, α was adjusted by dividing 0.05 by 6, P < 0.008, statistically significant

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