Table 2.
p,p′ – and o,p′-dichlorodiphenyltrichloroethane (DDT) and dichlorodiphenyldichloroethylene (DDE) lipid-adjusted concentrations (ng/g lipids) geometric means, detection and quantification frequencies, and distributions for girls and boys, Venda Health Examination of Mothers, Babies and their Environment (VHEMBE).
| Variable | n | % Detecteda | % Quantifiableb | GM | Min | 10th% | 25th% | 50th% | 75th% | 90th% | Max |
|---|---|---|---|---|---|---|---|---|---|---|---|
| p,p′-DDT | 752 | 98.0 | 94.4 | 69.4 | <LOD | 8.1 | 18.8 | 55.2 | 259.3 | 946.2 | 15027.6 |
| p,p′-DDE | 752 | 100 | 98.4 | 256.5 | 6.9 | 44.3 | 91.7 | 241.3 | 878.7 | 2577.7 | 26301.3 |
| o,p′-DDT | 752 | 90.6 | 66.6 | 8.9 | <LOD | 1.5 | 3.4 | 7.1 | 22.6 | 72.0 | 2029.3 |
| o,p′-DDE | 752 | 82.7 | 48.3 | 4.1 | <LOD | <LOD | 2.3 | 4.2 | 6.9 | 13.0 | 117.5 |
a
Detection limit is 0.01 ng/g wet weight for p,p′-DDT, o,p′-DDT, and o,p′-DDE; and 0.03 ng/g for p,p′-DDE.
b
Quantification limit is 0.03 ng/g wet weigh for p,p′-DDT, o,p′-DDT, and o,p′-DDE; and 0.09 ng/g for p,p′-DDE.