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3421291 
Technical Report 
Minimum latency & types or categories of cancer 
Howard, J 
2013 
Centers for Disease Control and Prevention: WTC Health Program 
Atlanta, GA 
1-9 
9 
English 
Executive Summary

The WTC Program Administrator has determined minimum latencies for the following five types or categories of cancer eligible for coverage in the WTC Health Program:

(1) Mesothelioma—11 years, based on direct observation after exposure to mixed forms of asbestos, which represents a change from the October 17, 2012 version of the Administrator’s White Paper on Minimum Latency & Types or Categories of Cancer;

(2) All solid cancers (other than mesothelioma, lymphoproliferative, thyroid, and childhood cancers)—4 years, based on low estimates used for lifetime risk modeling of low-level ionizing radiation studies;

(3) Lymphoproliferative and hematopoietic cancers (including all types of leukemia and lymphoma)—0.4 years (equivalent to 146 days), based on low estimates used for lifetime risk modeling of low-level ionizing radiation studies, which represents a change for lymphoproliferative cancers only from the October 17, 2012 version of the Administrator’s White Paper on Minimum Latency & Types of Categories of Cancer;

(4) Thyroid cancer—2.5 years, based on low estimates used for lifetime risk modeling of lowlevel ionizing radiation studies; and

(5) Childhood cancers (other than lymphoproliferative and hematopoietic cancers)—1 year, based on the National Academy of Sciences findings.