Table 3.

Association between log-transformed risk scores and breast cancer, overall and stratified by age group

	OR	(95% CI)	p	χ2**	p
All*
Log (BCRAT risk score)	2.74	(1.93–3.89)	<0.001	3.34	0.9
Log (SNP risk score)	2.55	(1.70–3.82)	<0.001	7.27	0.5
Log (Combined risk score)	2.74	(2.09–3.60)	<0.001	6.25	0.6
Aged 35 to 39 years
Log (BCRAT risk score)	3.17	(1.83–5.49)	<0.001	9.79	0.3
Log (SNP risk score)	3.50	(1.78–6.86)	<0.001	12.89	0.1
Log (Combined risk score)	3.59	(2.27–5.68)	<0.001	7.74	0.5
Aged 40 to 49 years
Log (BCRAT risk score)	3.47	(1.80–6.71)	<0.001	7.78	0.5
Log (SNP risk score)	2.94	(1.45–5.97)	0.003	10.31	0.2
Log (Combined risk score)	3.30	(2.00–5.43)	<0.001	14.81	0.06
Aged 50 to 59 years
Log (BCRAT risk score)	1.90	(0.98–3.71)	0.06	7.96	0.4
Log (SNP risk score)	1.51	(0.74–3.10)	0.3	3.80	0.9
Log (Combined risk score)	1.72	(1.05–2.81)	0.03	4.45	0.8

^*Adjusted for age group

^**Hosmer–Lemeshow χ² goodness of fit test using 10 groups (8 df)