Table 4. Summary of OR and 95% CI for association of rs144848 polymorphism with breast cancer risk by ethnicity stratification.

Subgroup	p for heterogeneity	I2 (%)	OR (95% CI)	p value	Effects model
N allele vs H allele
Caucasian	0.690	0.0	1.029 (0.997-1.061)	0.075	fixed
Asian	0.262	20.5	0.974 (0.692-1.372)	0.882	fixed
African	0.185	40.8	1.024 (0.850-1.235)	0.801	fixed
NH vs NN
Caucasian	0.970	0.0	1.028 (0.986-1.072)	0.189	random
Asian	0.050	74.0	1.133 (0.427-3.006)	0.801	random
African	0.337	8.1	1.069 (0.798-1.430)	0.656	random
HH vs NN
Caucasian	0.332	10.4	1.060 (0.981-1.146)	0.138	fixed
Asian	0.551	0.0	1.086 (0.377-3.124)	0.879	fixed
African	0.388	0.0	0.877 (0.529-1.455)	0.612	fixed
Dominant model
Caucasian	0.925	0.0	1.033 (0.993-1.075)	0.106	fixed
Asian	0.101	62.8	0.955 (0.640-1.424)	0.820	fixed
African	0.244	29.2	1.065 (0.855-1.325)	0.575	fixed
Recessive model
Caucasian	0.333	10.3	1.048 (0.972-1.130)	0.220	fixed
Asian	0.395	0.0	1.078 (0.378-3.072)	0.888	fixed
African	0.443	0.0	0.876 (0.548-1.399)	0.579	fixed