Data Hosting: Diesel Exhaust in Miners Study

The Diesel Exhaust in Miners Study is a collaborative effort between National Institute for Occupational Safety and Health (NIOSH) and National Cancer Institute (NCI) involving two epidemiological components (i.e., cohort study and a cases-control study, respectively) evaluating whether diesel exhaust exposure is associated with risk of dying from lung cancer. The Cohort Mortality Study with Emphasis on Lung Cancer was undertaken by NIOSH. The Nested Case- Control Study of Lung Cancer and Diesel Exhaust was undertaken by NCI.

About DEMS

Data and Documentation

DEMS Cohort Variables

Location of Access:


Your request for access to restricted-use data is captured within the RDC proposal. In the proposal, please thoroughly explain your research need for access to restricted-use variables, your analytic plan, how you intend to report your results, and the exact output you need for your near final product (e.g., paper, journal article or presentation). All sections of the proposal must be filled-out and clearly stated.  Submit your proposal as one document to

Confidentiality and Disclosure

After the proposal is approved, all members of the research team are required to complete the Confidentiality Training.  Please submit your Confidentiality Training certificate and signed, notarized non-disclosure affidavit to your RDC Analyst along with the Data Use Agreement.  For more information, see:  Confidentiality and Disclosure 

Output Review for Disclosures

All output submitted for a disclosure review must be the near final product and it must match the output described in your approved proposal.  We will not review frequency distributions or other large volumes of output.  For more information, see: Output Policies and Procedures (hyperlink to