Table 5. Odds ratios (ORs) and 95% confidence intervals (CIs) for breast cancer according to isoflavone intake by menopausal status.

	Premenopausal women				Postmenopausal women
	OR for tertiles of isoflavone intake (mg/1000 kcal)				OR for tertiles of isoflavone intake (mg/1000 kcal)
	1	2	3	P-value test	1	2	3	P-value test
Tertile median	7.61	11.87	18.47		8.69	13.59	22.26
Cases/controls	36/138	24/139	19/137		33/145	29/144	26/151
ORa	1.00	0.62	0.44	0.02	1.00	0.76	0.58	0.09
(95% CI)		(0.32–1.20)	(0.22–0.89)			(0.41–1.40)	(0.30–1.10)

^aAdjusted for age, motives for consultation, smoking, drinking, exercise, energy, family history, age at menarche, parity, age at first full-term pregnancy, BMI and age at menopause for postmenopausal women.