. 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 5.

Quartiles of daidzein and genistein concentrations among samples from each matrix and feeding method.

Analyte	Matrix	LOD^* (ng/ml)	Percentiles
			Breast milk			Cow-milk formula			Soy formula
			25^th	median	75^th	25^th	median	75^th	25^th	median	75^th
Daidzein	Blood	10	-	-	-	-	-	-	178.5	274.8	518.7
	Saliva	0.76	-	-	-	-	-	-	1.0	6.2	18.3
	Urine	1.6	-	-	2.2	2.6	10.6	22.4	3630	5590	8070
Genistein	Blood	27	-	-	-	-	-	-	405.3	890.7	1455.1
	Saliva	1.4	-	-	-	-	-	-	4.0	10.9	33.5
	Urine	0.8	-	-	5.6	5.6	13.6	32.4	3390	7220	11300

Limit of detection.