Cancer cluster investigations
We collaborate with the Colorado Central Cancer Registry to respond to concerns about possible cancer clusters thought to be related to environmental risks.
A cancer cluster is a greater-than-expected number of cancer cases that occur within a group of people in a geographic area over a specific period.
The U.S. Centers for Disease Control and Prevention (CDC) develops and distributes general guidelines for states to use when determining whether an excess number of cancers have occurred. If a suspected cancer cluster has been identified, we then investigate whether the cancer cases plausibly can be linked to some shared environmental exposure.
Data routinely collected by the cancer registry provide an important tool to respond to community and occupational concerns. All cancers diagnosed in Colorado are reported to the registry with the exception of non-melanoma skin cancers.
Publications and findings
- Rocky Mountain Arsenal:
- Update: Tumor Incidence in Residents Adjacent to the Lookout Mountain Antenna Farm.
- Full technical report of 2004 update.
- Analysis of Diagnosed vs. Expected Cancer Cases in Residents of the Vasquez Boulevard/I-70 Superfund Site Study Area.
- CDC's guidelines for investigating clusters of health events.
- CDC’s National Center for Environmental Health Cancer Clusters Program.
- CDC’s National Program of Cancer Registries (NPCR).
- NCEH 2007 addendum to cancer cluster investigations.
- U.S. Department of Health and Human Services (HHS): Cancer and the Environment.
- National Institute of Environmental Health Sciences (NIEHS) Report on Carcinogens (RoC).
- Find out more about cancer in Colorado.