. Author manuscript; available in PMC: 2009 Feb 1.

Published in final edited form as: J Expo Sci Environ Epidemiol. 2008 Jul 30;19(2):223–234. doi: 10.1038/jes.2008.44

Table 4.

Proportion of samples from each matrix and feeding method where concentrations of daidzein, genistein, or equol were below the limit of detection.

Analyte	Matrix	LOD^* (ng/ml)	Feeding Method
			Breast milk			Cow-milk formula			Soy formula
			Number of samples		Percent <LOD(%)	Number of samples		Percent <LOD(%)	Number of samples		Percent <LOD(%)
			Analyzed	<LOD	Percent <LOD(%)	Analyzed	<LOD	Percent <LOD(%)	Analyzed	<LOD	Percent <LOD(%)
Daidzein	Blood	10	20	19	95	30	29	97	27	1	4
	Saliva	0.76	121	113	93	120	111	93	120	20	17
	Urine	1.6	128	90	70	128	28	22	125	0	0
Genistein	Blood	27	20	19	95	30	27	90	27	0	4
	Saliva	1.4	121	118	98	120	114	95	120	11	9
	Urine	0.8	128	65	51	128	12	9	125	0	0
Equol	Blood	12	20	20	100	30	30	100	27	27	100
	Saliva	3.6	121	121	100	120	120	100	120	120	100
	Urine	3.3	128	126	98	125	98	78	124	118	95

Limit of detection.