% difference in blood mercury | p-value | |
---|---|---|
Age (years) | ||
20-29 | Reference | |
30-39 | 6.0 | <0.001 |
40-49 | 11.1 | <0.001 |
50-59 | 12.9 | <0.001 |
≥60 | 5.6 | <0.001 |
Men | 9.8 | <0.001 |
BMI (kg/m2) | 1.0 | <0.001 |
White fish intake level (g/day) | ||
Low tertile (0) | Reference | |
Medium tertile (0 < - ≤ 40) | 2.7 | 0.02 |
High tertile (>40) | 3.9 | <0.001 |
Oily/fatty fish intake level (g/day) | ||
Low tertile (0) | Reference | |
Medium tertile (0 < - ≤ 40) | 1.6 | 0.05 |
High tertile (>40) | 2.6 | 0.03 |
Total shellfish intake level (g/day) | ||
Low tertile (0) | Reference | |
Medium tertile (0 < - ≤ 20) | -1.4 | 0.1 |
High tertile (>20) | 3.2 | <0.001 |
MET-h/week | ||
<20 | Reference | |
20-39 | 2.6 | 0.01 |
≥40 | 0.8 | 0.3 |
Smoking status | ||
Never | Reference | |
Former | 0.9 | 0.5 |
Current | 1.7 | 0.1 |
Alcohol intake | ||
Never | Reference | |
≤1/mo | 1.7 | 0.1 |
≤1/week | 4.7 | <0.001 |
2-3/week | 9.4 | <0.001 |
4+/week | 9.7 | <0.001 |
Income | ||
Low | Reference | |
Mid low | 3.0 | 0.004 |
Mid high | 4.2 | <0.001 |
High | 8.1 | <0.001 |
Education | ||
Middle school graduation or less | Reference | |
High school graduation | 0.4 | 0.7 |
College or more | 3.7 | 0.003 |
Residence area | ||
Midwest | Reference | |
North | 5.5 | <0.001 |
Southwest | 8.7 | <0.001 |
Mideast | 16.5 | <0.001 |
Southeast and an island | 17.5 | <0.001 |