Table 2.
Arithmetic Mean Concentration (ng/g Lipid) and 95% CI of Select Chlorinated Persistent Organic Pollutants in NHANES 2003/04 (Individual Samples) and NHANES 2005/06 and 2007/08 (Pooled Samples) by Survey Period and Age Groupa
| survey period | concentration (ng/g lipid) with 95% CI by age Group
|
|||
|---|---|---|---|---|
| 12–19 | 20–39 | 40–59 | ≥60 | |
| 2,4,4′,5-tetrachlorobiphenyl (PCB74) | ||||
| 2003–04 | 2.5 ± 0.3 | 3.3 ± 0.2 | 7.5 ± 0.7 | 17.9 ± 1.7 |
| 2005–06 | 1.8 ± 0.2* | 2.6 ± 0.3* | 6.0 ± 0.6* | 15.8 ± 2.4 |
| 2007–08 | 1.5 ± 0.3* | 2.2 ± 0.2* | 5.2 ± 0.5* | 13.2 ± 1.2* |
| 2,2′,4,4′,5-pentachlorobiphenyl (PCB99) | ||||
| 2003–04 | 2.8 ± 0.4 | 3.5 ± 0.3 | 6.7 ± 1.1 | 12.4 ± 2.2 |
| 2005–06 | 1.4 ± 0.3* | 2.4 ± 0.4* | 4.6 ± 0.8* | 9.8 ± 1.4 |
| 2007–08 | 1.2 ± 0.4* | 2.2 ± 0.3* | 4.2 ± 0.6* | 8.9 ± 1.0* |
| 2,3′,4,4′,5-pentachlorobiphenyl (PCB118) | ||||
| 2003–04 | 3.7 ± 0.5 | 4.9 ± 0.6 | 10.2 ± 1.8 | 23.3 ± 3.5 |
| 2005–06 | 2.2 ± 0.4* | 3.5 ± 0.8 | 7.9 ± 1.5 | 19.3 ± 3.6 |
| 2007–08 | 2.2 ± 0.5* | 3.7 ± 0.6* | 6.9 ± 0.9* | 18.8 ± 2.8 |
| 2,2′,3,4,4′,5′- and 2,3,3′,4,4′,6-hexachlorobiphenyl (PCB138–158) | ||||
| 2003–04 | 6.2 ± 0.8 | 11.8 ± 1.3 | 28.7 ± 3.9 | 53.0 ± 5.9 |
| 2005–06 | 3.6 ± 0.6* | 6.9 ± 1.1* | 17.8 ± 2.9* | 35.8 ± 5.8* |
| 2007–08 | 4.0 ± 1.0* | 8.3 ± 1.3* | 21.9 ± 2.4* | 46.5 ± 4.8 |
| 2,2′,4,4′,5,5′-hexachlorobiphenyl (PCB153) | ||||
| 2003–04 | 7.7 ± 1.0 | 15.1 ± 1.8 | 38.4 ± 4.7 | 70.6 ± 7.3 |
| 2005–06 | 5.4 ± 0.9* | 11.5 ± 2.0 | 31.4 ± 5.1 | 63.3 ± 9.4 |
| 2007–08 | 4.9 ± 1.1* | 10.3 ± 1.6* | 29.3 ± 2.7* | 60.8 ± 6.2 |
| 2,2′,3,4,4′,5,5′-heptachlorobiphenyl (PCB180) | ||||
| 2003–04 | 4.9 ± 0.7 | 12.4 ± 3.5 | 32.4 ± 3.1 | 60.2 ± 6.8 |
| 2005–06 | 3.3 ± 0.5* | 8.4 ± 1.9 | 28.1 ± 5.7 | 54.9 ± 8.7 |
| 2007–08 | 3.0 ± 0.6* | 7.5 ± 1.4 | 24.6 ± 1.8* | 51.3 ± 6.0 |
| 2,2′,3,3′,4,4′,5,5′-octachlorobiphenyl (PCB194) | ||||
| 2003–04 | 1.0 ± 0.3 | 2.5 ± 0.7 | 7.3 ± 0.6 | 14.4 ± 2.1 |
| 2005–06 | 0.5 ± 0.1* | 1.7 ± 0.5 | 6.1 ± 0.9 | 13.2 ± 2.2 |
| 2007–08 | 0.6 ± 0.2 | 1.7 ± 0.3 | 6.2 ± 0.5* | 13.3 ± 1.5 |
| hexachlorobiphenyl (HCB) | ||||
| 2003–04 | 14.6 ± 0.9 | 14.4 ± 0.9 | 18.0 ± 1.9 | 20.5 ± 1.2 |
| 2005–06 | 6.5 ± 0.8* | 7.4 ± 0.7* | 9.2 ± 0.8* | 12.9 ± 1.3* |
| 2007–08 | 9.4 ± 1.1* | 8.7 ± 0.5* | 11.5 ± 1.6* | 13.7 ± 1.0* |
| 2,2-bis(4-chorophenyl)-1,1-dichloroethene (p,p′-DDE) | ||||
| 2003–04 | 198.8 ± 75.4 | 265.4 ± 76.5 | 573.1 ± 174.4 | 1062.9 ± 237.7 |
| 2005–06 | 267.5 ± 349.5 | 507.0 ± 212.9 | 436.6 ± 232.7 | 957.0 ± 420.9 |
| 2007–08 | 103.9 ± 27.9 | 261.4 ± 87.7 | 330.7 ± 126.1 | 746.5 ± 288.9 |
a
Significantly different 95% CI of the arithmetic mean compared with NHANES 2003/04 is indicated with an asterisk.