Table 2. Meta-analysis results for pair-wise comparisons.

Intervention 1	Intervention 2	5 years OS	3 years OS	1 years OS	CR
A	Control	1.22 (0.85, 1.75)	1.20 (0.81, 1.80)	1.16 (0.59, 2.28)	1.11 (0.86, 1.43)
C	Control	0.68 (0.52, 0.90)	0.66 (0.48, 0.90)	0.32 (0.15, 0.67)	1.16 (1.06, 1.28)
C+A	Control	0.65 (0.53, 0.80)	0.62 (0.47, 0.81)	0.46 (0.26, 0.81)	1.23 (0.81, 1.88)
N	Control	0.84 (0.69, 1.02)	0.86 (0.69, 1.06)	0.96 (0.63, 1.48)	1.04 (0.89, 1.21)
C+A	A	0.74 (0.36, 1.55)	0.69 (0.26, 1.84)	1.47 (0.03, 80.96)	-
C+A	C	0.80 (0.50, 1.29)	0.76 (0.40, 1.45)	1.10 (0.23, 5.20)	1.09 (0.72, 1.66)
N+A	C+A	0.84 (0.53, 1.34)	1.06 (0.27, 4.08)	-	-
N+C	C	0.94 (0.74, 1.21)	0.82 (0.43, 1.56)	0.59 (0.14, 2.53)	1.04 (0.83, 1.30)
N+C	C+A	-	1.09 (1.01, 1.16)	0.89 (0.38, 2.05)	-
N+C	N	1.04 (0.63, 1.71)	1.10 (0.54, 2.21)	0.82 (0.15, 4.47)	-

Abbreviation: A, Adjuvant chemotherapy; C, Concurrent chemotherapy; N, Neoadjuvant chemotherapy