TABLE 7.

Publication bias of included studies.

IS	Egger’s test			Begg’s test
	Co-efficiency	Standard error	p-value	Z	p-value
Dominant model	0.83	0.39	0.04 a	1.56	0.12
Recessive model	0.37	0.29	0.20	1.28	0.20
Heterozygote model	0.74	0.34	0.03 a	1.83	0.07
Homozygote model	0.28	0.36	0.43	1.18	0.24
Allele model	0.76	0.44	0.09	1.71	0.09

^a p < 0.05.