Table 1 Geometric mean (95% CI) concentrations of urine, saliva and blood analytes by feeding method and sex.

Urine

Boy

Estradiol (pg/mL)

15.44 (12.82, 18.60), n = 65

17.89 (15.52, 20.63), n = 61

12.60 (10.28, 15.44), n = 59

Estrone (pg/mL)

87.20 (70.96, 107.14), n = 65

107.80 (89.13, 130.39), n = 64

100.96 (75.10, 135.74), n = 62

Testosterone (ng/dL)

4.05 (3.43, 4.79), n = 65

3.67 (3.08, 4.38), n = 61

4.32 (3.73, 5.01), n = 59

LH (mIU/mL)

0.35 (0.26, 0.47), n = 65

0.55 (0.43, 0.70), n = 64

0.32 (0.24, 0.43), n = 62

FSH (mIU/mL)

1.42 (1.12, 1.78), n = 65

1.11 (0.82, 1.50), n = 64

0.99 (0.76, 1.29), n = 62

SHBG (nmol/L)

29.57 (24.35, 35.92), n = 65

22.81 (18.95, 27.47), n = 64

25.94 (21.07, 31.96), n = 62

Girl

Estradiol (pg/mL)

13.77 (11.88, 15.95), n = 61

14.33 (12.41, 16.55), n = 64

17.30 (14.41, 20.77), n = 61

Estrone (pg/mL)

65.79 (48.48, 89.28), n = 63

94.64 (77.08, 116.20), n = 64

99.77 (75.38, 132.06), n = 63

Testosterone (ng/dL)

3.43 (2.90, 4.05), n = 61

3.48 (3.02, 3.99), n = 64

2.61 (2.07, 3.30), n = 61

LH (mIU/mL)

0.47 (0.36, 0.63), n = 63

0.36 (0.28, 0.47) n = 64

0.62 (0.47, 0.82) n = 63

FSH (mIU/mL)

1.25 (0.95, 1.64), n = 63

1.08 (0.86, 1.36), n = 64

1.50 (1.15, 1.95), n = 63

SHBG (nmol/L)

26.68 (21.33, 33.38), n = 63

26.76 (21.84, 32.79), n = 64

28.91 (23.39, 35.74), n = 63

Saliva

Boy

Estradiol (pg/mL)

16.66 (13.78, 20.14), n = 61

19.66 (17.31, 22.32), n = 58

13.90 (11.41, 16.94), n = 54

Estrone (pg/mL)

87.62 (71.92, 106.76), n = 61

114.15 (94.17, 138.37), n = 61

109.79 (81.15, 148.54), n = 57

Testosterone (ng/dL)

4.99 (4.27, 5.83), n = 61

4.79 (4.06, 5.67), n = 58

5.18 (4.41, 6.09), n = 54

LH (mIU/mL)

0.77 (0.64, 0.89), n = 61

0.85 (0.72, 1.00), n = 61

0.57 (0.45, 0.71), n = 57

FSH (mIU/mL)

2.02 (1.71, 2.39), n = 61

1.62 (1.25, 2.09), n = 61

1.51 (1.18, 1.93), n = 57

SHBG (nmol/L)

33.60 (27.52, 41.01), n = 61

26.92 (22.26, 32.57), n = 61

30.65 (24.87, 37.77), n = 57

Girl

Estradiol (pg/mL)

15.38 (13.37, 17.70), n = 57

16.52 (14.22, 19.20), n = 59

18.75 (15.85, 22.17)

Estrone (pg/mL)

63.48 (47.05, 85.64), n = 59

101.77 (84.38, 122.75), n = 59

101.73 (78.84, 132.11), n = 62

Testosterone (ng/dL)

4.35 (3.72, 5.08), n = 57

4.22 (3.70, 4.80), n = 59

3.20 (2.61, 3.92), n = 60

LH (mIU/mL)

0.79 (0.64, 0.96), n = 59

0.70 (0.59, 0.83), n = 59

0.95 (0.80, 1.13), n = 62

FSH (mIU/mL)

1.76 (1.46, 2.14), n = 59

1.52 (1.28, 1.80), n = 59

1.94 (1.57, 2.40), n = 62

SHBG (nmol/L)

34.14 (27.44, 42.48), n = 59

28.74 (23.12, 35.73), n = 59

34.97 (28.76, 42.51), n = 62

Blood

Boy

Estradiol (pg/mL)

29.32 (22.13, 38.85), n = 8

20.83 (15.90, 27.30), n = 15

22.39 (16.92, 29.65), n = 19

Estrone (pg/mL)

316.99 (216.49, 464.15), n = 8

206.13 (145.50, 292.01), n = 18

284.11 (187, 12, 431.38), n = 22

Testosterone (ng/dL)

2.96 (1.72, 5.10), n = 8

4.17 (3.00, 5.80), n = 15

4.47 (3.39, 5.90), n = 19

LH (mIU/mL)

0.85 (0.50, 1.43), n = 8

1.15 (0.86, 1.52), n = 18

0.94 (0.72, 1.22), n = 22

FSH (mIU/mL)

2.42 (1.37, 4.27), n = 8

1.99 (1.26, 3.13), n = 18

2.17 (1.61, 2.94), n = 22

SHBG (nmol/L)

17.60 (12.57, 24.63), n = 8

22.99 (17.80, 29.70), n = 18

25.00 (21.38, 29.22), n = 22

Girl

Estradiol (pg/mL)

20.13 (16.01, 25.31), n = 13

18.59 (15.19, 22.74), n = 17

24.93 (14.52, 42.79), n = 6

Estrone (pg/mL)

184.89 (146.92, 232.68), n = 15

171.15 (134.52, 217.75), n = 17

333.20 (186.46, 595.40), n = 8

Testosterone (ng/dL)

3.90 (2.85, 5.33), n = 13

3.49 (2.74, 4.46), n = 17

3.12 (1.22, 7.95), n = 6

LH (mIU/mL)

1.13 (0.81, 1.58), n = 15

1.11 (0.92, 1.34), n = 17

1.44 (0.99, 2.08), n = 8

FSH (mIU/mL)

2.06 (1.23, 3.43), n = 15

1.68 (1.12, 2.53), n = 17

2.22 (1.10, 4.49), n = 8

SHBG (nmol/L)

25.48 (18.39, 35.29), n = 15

21.92 (16.64, 28.89), n = 17

24.23 (16.36, 35.88), n = 8