Table 3.

Stratification analysis of the meta-analysis for complications in patients with gastrointestinal malignancy

Subgroup	No. study	No. patients	Pooled HR (95% CI)	p	p for subgroup difference	Heterogeneity
						I2(%)	PQ
Altogether	4	6035	2.19(1.57–3.05)	< 0.001		0.0	0.94
Publishing time					0.921
< 2019	2	2171	2.22(1.37–3.60)	0.001		0.0	0.573
≥ 2019	2	3864	2.15(1.35–3.42)	0.001		0.0	0.783
Country					0.875
China	1	5788	2.28(1.22–4.25)	0.009		—	—
Japan	3	83	2.15(1.45–3.19)	< 0.001		0.0	0.828
Sample					0.875
< 300	1	1295	2.15(1.45–3.19)	0.009		—	—
≥ 300	3	4740	1.81(1.58–2.07)	< 0.001		0.0	0.828
Cutoff value					0.921
< 98	2	3274	2.22(1.37–3.60)	0.001		0.0	0.573
≥ 98	2	2761	2.15(1.35–3.42)	0.001		0.0	0.783
Cancer site					0.921
GC	2	888	2.22(1.37–3.60)	0.001		0.0	0.573
CRC	2	6035	2.15(1.35–3.42)	0.001		0.0	0.783