Table 4

Age- and lipid-adjusted geometric means for DDE and PCBs among controls and breast cancer cases by ER status

VariablenDDE (ppb)PCBs (ppb)
Mean95% CIPaMean95% CIPa
Controls347477.9432.3–528.3702.1677.6–727.6
Cases
ER+163435.2375.6–504.20.28680.2645.5–716.60.33
ER−140453.9387.7–531.40.60700.2662.1–740.50.94
Unknown23563.5381.9–831.50.42661.1575.9–759.00.43
  • a P for geometric mean difference between cases and controls.