Table 3.

Subgroup analysis of pooled HR for gastric cancer patients with Ki-67 overexpression

Subgroup	Studies	Pooled HR	95% CI	P-value	Model	Heterogeneity I2 (%)	P-value
Ethnicity
Asian	14	1.54	1.25–1.89	<0.0001	Random	82	<0.00001
Caucasian	4	2.04	1.08–3.86	0.03	Random	71	0.01
Cutoff of staining
<50%	10	1.52	1.09–2.12	0.01	Random	78	<0.00001
≥50%	7	1.78	1.40–2.27	<0.0001	Random	72	0.002
Number of patients
<100	6	1.64	1.49–1.81	<0.00001	Fixed	0	0.48
≥100	12	1.51	1.15–1.97	0.003	Random	84	<0.00001

Abbreviations: HR, hazard ratio; CI, confidence interval.