Table 2 Comparison of maternal biomarkers and maternal diet between returning and non-returning participants (n = 391 mother/child pairs)

N

391

127

264

201

190

Hair THg (μg/g)

0.40 (0.08, 1.7)

0.41 (0.08, 1.3)

0.39 (0.08, 1.7)

0.53

0.38 (0.08, 1.3)

0.42 (0.12, 1.7)

0.12

Rice MeHg (ng/g)

2.2 (0.32, 15)

2.3 (0.53, 9.7)

2.1 (0.32, 15)

0.37

2.3 (0.34, 13)

2.1 (0.32, 15)

0.45

N

389

127

262

200

189

%MeHg intake from rice

87 (0, 100)

91 (0, 100)

82 (0.30, 100)

0.15

87 (0.30, 100)

86 (0, 100)

0.33

N

390

126

264

200

190

Serum Zn (μg/L)

715 (344, 1009)

714 (543, 1009)

715 (344, 905)

0.25

711 (344, 1009)

720 (575, 960)

0.20

Blood Pb (μg/dL)

2.6 (0.96, 8.6)

2.7 (1.2, 8.6)

2.6 (0.96, 7.8)

0.17

2.6 (0.96, 8.6)

2.7 (1.1, 7.8)

0.55

Serum DHA (mg/mL)

0.09 (0.04, 0.33)

0.09 (0.04, 0.18)

0.09 (0.04, 0.33)

0.25

0.09 (0.04, 0.19)

0.09 (0.04, 0.33)

0.20

Serum EPA (mg/mL)

0.007 (0.001, 0.09)

0.007 (0.001, 0.08)

0.007 (0.001, 0.09)

0.63

0.007 (0.001, 0.09)

0.008 (0.002, 0.07)

0.24

Serum N-6/N-3 (unitless)

12 (3.5, 25)

12 (5.3, 24)

11 (3.5, 25)

0.27

12 (3.5, 24)

12 (5.0, 25)

0.49

N

389

126

263

199

190

Serum Se (μg/L)

152 (66, 535)

148 (74, 274)

153 (66, 535)

0.25

150 (66, 535)

153 (69, 323)

0.49

N

376

121

255

194

182

% Calories from fat

33 (13, 81)

33 (16, 80)

33 (13, 81)

0.89

34 (18, 80)

32 (13, 81)

0.02*

% Calories from carbohydrates

56 (12, 78)

57 (14, 78)

55 (12, 75)

0.53

54 (12, 73)

56 (12, 78)

0.05*

% Calories from protein

11 (5.1, 25)

10 (5.2, 18)

12 (5.1, 25)

< 0.001***

11 (5.2, 25)

11 (5.1, 22)

0.26

Total Energy Intake (kcal)

1995 (515, 4637)

1863 (515, 4637)

2052 (549, 4438)

0.02*

2000 (515, 4535)

1989 (549, 4637)

0.38