Table 3.

Meta-analysis results

Comparisons	OR	95% CI	P-value	Heterogeneity		Effects model
				I2	P-value
T vs C	1.18	1.08–1.28	0.0001	91%	<0.00001	R
Gastric cancer	1.26	1.10–1.45	0.001	94%	<0.00001	R
Bladder cancer	1.13	1.06–1.21	0.0005	63%	0.03	R
Others	0.97	0.81–1.16	0.75	62%	0.03	R
Asian	1.19	1.05–1.35	0.007	93%	<0.00001	R
Caucasian	1.15	1.04–1.26	0.004	75%	0.0005	R
Mixed	1.44	1.14–1.81	0.002	NA	NA
TT vs CC	1.36	1.14–1.62	0.0008	90%	<0.00001	R
Gastric cancer	1.51	1.10–2.08	0.01	94%	<0.00001	R
Bladder cancer	1.28	1.20–1.37	<0.00001	0%	0.57	F
Others	0.91	0.75–1.10	0.33	39%	0.16	F
Asian	1.37	1.03–1.82	0.03	92%	<0.00001	R
Caucasian	1.32	1.10–1.59	0.003	73%	0.001	R
Mixed	2.17	1.32–3.59	0.002	NA	NA
TC vs CC	1.29	1.17–1.44	<0.00001	85%	<0.00001	R
Gastric cancer	1.39	1.19–1.63	<0.0001	87%	<0.00001	R
Bladder cancer	1.23	1.17–1.30	<0.00001	0%	0.65	F
Others	0.98	0.68–1.41	0.90	77%	0.001	R
Asian	1.36	1.18–1.57	<0.0001	88%	<0.00001	R
Caucasian	1.13	0.95–1.34	0.16	79%	<0.0001	R
Mixed	1.70	1.05–2.77	0.03	NA	NA
TT + TC vs CC	1.32	1.18–1.49	<0.00001	90%	<0.00001	R
Gastric cancer	1.44	1.19–1.74	0.0002	92%	<0.00001	R
Bladder cancer	1.25	1.19–1.31	<0.00001	0%	0.64	F
Others	0.98	0.69–1.38	0.90	77%	0.002	R
Asian	1.38	1.17–1.62	0.0001	92%	<0.00001	R
Caucasian	1.18	1.00–1.40	0.05	80%	<0.0001	R
Mixed	1.88	1.19–2.99	0.007	NA	NA
TT vs CC + TC	1.15	1.02–1.30	0.02	83%	<0.00001	R
Gastric cancer	1.22	0.99–1.49	0.06	89%	<0.00001	R
Bladder cancer	1.13	1.07–1.20	<0.0001	0%	0.56	F
Others	0.95	0.79–1.14	0.57	0%	0.96	F
Asian	1.13	0.93–1.36	0.87	87%	<0.00001	R
Caucasian	1.15	1.09–1.22	<0.00001	47%	0.08	F
Mixed	1.46	1.05–2.03	0.02	NA	NA

Note: P-values in bold indicate nonsignificance.

Abbreviations: F, fixed; NA, not applicable; R, random; CI, confidence interval; OR, odds ratio; M–H, Mantel–Haenszel.