TABLE 2.

Distribution of urine phytoestrogen concentrations among 436 males in the LIFE study, 2005–2009¹

	Percentile
	5th	25th	50th	75th	95th	Geometric mean	95% CI
Genistein, nmol/L	10	44	127	542	2980	151	128, 178
Daidzein, nmol/L	25	91	280	1160	6680	342	291, 403
O-DMA, nmol/L	1	3	18	94	1350	20	17, 25
Equol, nmol/L	4	13	25	57	174	28	25, 31
Enterodiol, nmol/L	7	49	130	315	1040	121	105, 139
Enterolactone, nmol/L	24	231	931	2440	6570	669	566, 789
Total isoflavones, nmol/L	59	197	543	2070	11,700	665	570, 776
Total lignans, nmol/L	47	429	1180	2710	780	959	832, 1110
Total phytoestrogens, nmol/L	271	1080	2280	5780	17,400	2370	2110, 2670

¹LIFE, Longitudinal Investigation of Fertility and the Environment; O-DMA, O-desmethylangolensin.