Table 1.
PBDE (ng/mL) | LOD (ng/mL) | Percent detection | Meana,b | Minimum | 25th percentile | Median | 75th percentile | Maximum |
---|---|---|---|---|---|---|---|---|
PBDE-47 | 0.002 | 100.0% | 0.15 | 0.02 | 0.09 | 0.14 | 0.26 | 2.47 |
PBDE-85 | 0.005 | 11.3% | — | <LOD | <LOD | <LOD | <LOD | 0.06 |
PBDE-99 | 0.002 | 100.0% | 0.04 | 0.01 | 0.02 | 0.04 | 0.07 | 0.74 |
PBDE-100 | 0.002 | 83.8% | 0.02 | <LOD | 0.01 | 0.02 | 0.04 | 0.48 |
PBDE-153 | 0.016 | 63.8% | 0.02 | <LOD | <LOD | 0.03 | 0.05 | 0.30 |
PBDE-154 | 0.007 | 15.0% | — | <LOD | <LOD | <LOD | <LOD | 0.09 |
PBDE-209 | 0.100 | 0.0% | — | <LOD | <LOD | <LOD | <LOD | <LOD |
ΣPBDEc | 0.25 | 0.05 | 0.14 | 0.23 | 0.44 | 4.00 | ||
ΣPBDE (pmol/mL)c,d | 0.48 | 0.09 | 0.27 | 0.44 | 0.84 | 7.73 | ||
Lipids (mg/dL) | ||||||||
Cholesterol | 102.8 | 10.2 | 77.7 | 101.1 | 127.9 | 262.2 | ||
Triglycerides | 127.8 | 37.2 | 100.8 | 127.4 | 140.4 | 275.3 | ||
Total lipidse | 423.4 | 200.0 | 353.4 | 403.8 | 478.1 | 788.0 |
Abbreviations: LOD: limit of detection
Geometric means reported for PBDE congeners and arithmetic means reported for lipids.
Geometric means not calculated for congeners with detection frequencies less than 50%. BDE-100 and -153 were imputed based on a lognormal probability distribution whose parameters were determined by maximum likelihood estimation.
Sum of congeners with detection frequencies greater than 60% (BDE-47, -99, -100, and -153). Including congeners -85 and -154 minimally impacted the sum.
Molar sum calculated by dividing each congener by its molecular weight, multiplying by 1,000, then summing congeners.
Total lipids = (2.27×Cholesterol)+Triglycerides+62.3 (Phillips et al. 1989)