Table 1b.

Genotype distribution of rs4148269 in women with breast cancer and healthy controls.

Population	Genotype	Cases (%)	Controls (%)	P	OR [95% CI]
African Americans	A/A	175 (65.1%)	59 (58.4%)	0.491	1.00 (ref.)
	A/C	88 (32.7%)	39 (38.6%)		0.76 [0.47–1.23]
	C/C	6 (2.2%)	3 (3.0%)		0.67 [0.16–2.78]
Barbados	A/A	88 (64.7%)	216 (65.9%)	0.971	1.00 (ref.)
	A/C	43 (31.6%)	100 (30.5%)		1.06 [0.68–1.63]
	C/C	5 (3.7%)	12 (3.7%)		1.02 [0.35–2.99]
Nigerians	A/A	665 (77.3%)	315 (77.6%)	0.300	1.00 (ref.)
	A/C	179 (20.8%)	88 (21.7%)		0.96 [0.72–1.29]
	C/C	16 (1.9%)	3 (0.7%)		2.52 [0.73–8.73]
Total	A/A	928 (73.4%)	590 (70.7%)	0.383	1.00 (ref.)
	A/C	310 (24.5%)	227 (27.2%)		0.87 [0.71–1.06]
	C/C	27 (2.1%)	18 (2.2%)		0.95 [0.52–1.75]