Table 1.

Overall survival results of study based meta-analyses comparing post-operative chemotherapy vs surgery alone

Ref.	Studies analysed (n)	Pooled HR (95%CI)
Earle et al[16]	13	0.80 (0.66-0.97)
Mari et al[17]	20	0.82 (0.75-0.89)
Janunger et al[19]	21	0.84 (0.74-0.96)
Oba et al[20]	4	0.73 (0.60-0.89)
Liu et al[21]	19	0.85 (0.80-0.90)
Zhao et al[22]	15	0.90 (0.84-0.96)
Sun et al[23]	12	0.78 (0.71-0.85)