Table 3. Comparison of detection rates and median concentrations of PBDEs between cases and controls.
| |
Study I (N = 490) |
Study II (N = 1130) |
|||||
|---|---|---|---|---|---|---|---|
| PBDEs | Control | Case | P | Control | Case | P | |
| BDE28 | Detection rates (%) | 71.0 | 54.3 | 0.000 | 38.9 | 42.7 | 0.204 |
| Median concentration (pg/ml) | 44.9 | 63.6 | 0.147 | 48.4 | 46.0 | 0.236 | |
| BDE47 | Detection rates (%) | 45.7 | 58.0 | 0.007 | 34.3 | 45.1 | 0.000 |
| Median concentration (pg/ml) | 19.0 | 31.0 | 0.019 | 20.6 | 24.0 | 0.000 | |
| BDE99 | Detection rates (%) | 1.2 | 1.2 | 1.000 | 5.3 | 3.2 | 0.077 |
| Median concentration (pg/ml) | 25.0 | 16.0 | 0.700 | 69.0 | 19.0 | 0.074 | |
| BDE100 | Detection rates (%) | 10.2 | 7.3 | 0.264 | 7.1 | 5.8 | 0.397 |
| Median concentration (pg/ml) | 9.4 | 7.2 | 0.205 | 17.2 | 15.0 | 0.391 | |
| BDE153 | Detection rates (%) | 6.5 | 5.7 | 0.706 | 12.4 | 11.3 | 0.581 |
| Median concentration (pg/ml) | 8.6 | 7.3 | 0.101 | 8.8 | 13.9 | 0.629 | |
| BDE154 | Detection rates (%) | 29.4 | 33.5 | 0.330 | 19.6 | 23.0 | 0.168 |
| Median concentration (pg/ml) | 16.0 | 15.9 | 0.954 | 18.8 | 15.0 | 0.295 | |
| BDE183 | Detection rates (%) | 41.2 | 39.6 | 0.713 | 31.3 | 33.1 | 0.524 |
| Median concentration (pg/ml) | 26.5 | 30.5 | 0.890 | 41.5 | 35.5 | 0.625 | |
The median concentrations of PBDEs were calculated with detectable values.