Discussions and Conclusions
The findings indicate that the relative risk of cancer was greater among study participants who reported water contact with specific areas of the Nyanza Chemical site.
Increased risks of cancer were consistently observed when study participants reported water contact exposures in one on-site area (Area D - Megunko Hill) and one off-site location (Area H – Sudbury River at Myrtle Street) associated with chemical contamination.
The risks were typically increased three to four fold among study participants who reported a family history of cancer.
Although analyses restricting the case group to only those with a confirmed cancer diagnosis did not consistently confirm the associations initially observed for contact with Nyanza site Areas B, F and G, the results demonstrate a consistent pattern in the direction of an increased risk of cancer for individuals in this study population who reported water contact exposures in specific locations both on and off the Nyanza site property.
The MDPH concludes that as a result of this information about reported exposure activities at the site from study participants, the findings suggest that a gene-environment interaction may exist among individuals who reported water contact in certain areas of the Nyanza site in the past.
see also:
Report Results
Nyanza Department of Health Report ResultsReport Results
Study Design and Methodology
Nyanza - Study Design and MethodologyNyanza - Study Design and Methodology
MA State Department of Health Report on Nyanza
Nyanza - Official Report from Massachusetts Department of HealthNyanza - Official Report from Massachusetts Department of Health


