Table 5

ORs for breast cancer in Long Island, New York, 1994–1996, in relation to adipose DDE, total OCPs, and total PCBs by ER statusa

Concentration in adipose tissue (ng/g)ER+ER−
Cases (n = 129)Controls (n = 323)Adjusted ORb95% CICases (n = 64)Controls (n = 323)Adjusted ORb95% CI
DDE
≤212.92301081.00151081.00
212.93–618.81421081.060.58–1.92311081.630.80–3.35
>618.81571070.830.44–1.56181070.810.34–1.93
P-trend0.50.9
OCPc
≤340.13271081.00131081.00
340.14–878.14481081.210.61–2.06351082.171.03–4.58
>878.14541070.750.38–1.48161070.800.31–2.05
P-trend0.30.8
PCBc
≤181.81231081.00171081.00
181.82–332.24401081.200.65–2.21241081.290.63–2.65
>332.24661071.260.66–2.41231071.080.48–2.45
P-trend0.40.9
  • a Thirty-nine cases with either borderline or unknown ER status were excluded from analysis.

  • b Adjusted for age and BMI (continuous), hospital (two hospitals, indicator), race (white versus non-white, indicator).

  • c OCP, sum of seven organochlorine pesticide species; PCB, sum of 14 congeners; see text for details.