Table 2.

Sensitivity analysis for pooled random-effects mean difference (MD) estimates in subgroups

Subgroup	Removed study	Reason for removal	Z	p	Heterogeneity	MD	95% CI (min, max)
HCC vs. control	Zekri, 2010 [11]	Outlier study	6.51	< 0.00001	98%	47.31	33.06, 61.55
HCC vs. LC	El-Tayeh, 2012 [13]	Outlier study	2.60	0.009	68%	26.28	6.43, 46.12