Analyses were performed separately for each major class of contaminants, while adjusting for the possible influences of gender and age. Percentages indicate percent of total variation in lesion prevalence explained. A total of 19 sites were sampled, and some sites were sampled more than once. Specific compounds determined in each of these classes are listed in Table 3. Analyses were performed separately for each major class of contaminants, while adjusting for the possible influences of gender and age.
Percentages indicate percent of total variation in lesion prevalence explained.
A total of 19 sites were sampled, and some sites were sampled more than once. Specific PCB congeners measured are listed in Table 3. Specific compounds determined in each of these classes are listed in Table 3 . . Specific compounds determined in each of these classes are listed in Table 3 . . Specific PCB congeners measured are listed in Table 3 .