Table 2

Serum organochlorine concentrations for chemicals detected in >50% of all samples among pancreatic cancer cases and controls, San Francisco Bay Area, CA 1996–1998

ChemicalCases (n = 108)Controls (n = 82)Wilcoxon P
MeanMedianSDRangeMeanMedianSDRange
Results unadjusted for lipid content of seruma (ng/ml serum)
DDE11.97.712.91.00–79.712.17.814.80.5–90.4
HCB0.170.130.20NDb–1.10.180.130.23ND–0.94
Total PCBs2.51.92.2ND–12.51.91.91.3ND–7.2
t-Nonachlor0.370.340.43ND–2.50.320.180.38ND–1.5
Lipid-adjusted resultsc (ng/g lipid)
DDE205412872038187–1667915721029179797–111480.05
HCB282231ND–174221726ND–1110.22
Total PCBs433329412ND–2642246220166ND–892<0.001
t-Nonachlor635478ND–478392845ND–1870.03
  • a All values have been adjusted for recovery using the values in Brock et al. (14) .

  • b ND, not detected. Detection limits in ng/ml serum are 0.4 (DDE), 0.05 (HCB), 0.2 (each PCB congener), and 0.9 (t-nonachlor).

  • c All comparisons were based on lipid-adjusted results due to the collection of nonfasting samples.