No association between the progesterone receptor gene polymorphism (+331G/a) and the risk of breast cancer: an updated meta-analysis

Table 3 Summarized ORs with 95% CIs for the association between PGR polymorphism and breast cancer

Polymorphism	Genetic model	n	Statistical model	OR	95% CI	p_z	I² (%)	p_h	p_e
+331G/A
	Allele contrast	8	Random	1.073	0.915–1.257	0.388	43.9	0.086	0.871
	Homozygous codominant	8	Random	0.863	0.488–1.524	0.611	0	0.479	0.937
	Heterozygous codominant	8	Random	1.084	0.908–1.294	0.374	48.4	0.06	0.767
	Dominant	12	Random	1.140	1.015–1.279	0.027	36.0	0.103	0.686
	Recessive	8	Random	1.084	0.658–2.277	0.374	48.5	0.059	0.774

n the number of studies, p _z P value for association test, p _h, p value for heterogeneity test, p _e p value for publication bias test

ISSN: 1471-2350