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Login Change: CDAS is now using the NIH Researcher Auth Service (RAS) to manage our existing login options. When logging into CDAS, you will be taken to RAS, where you can select your preferred login provider to access CDAS.

Questionnaires Datasets

The following PLCO Questionnaires dataset(s) are available for delivery on CDAS. For each dataset, a Data Dictionary that describes the data is publicly available. In order to obtain the actual data in SAS or CSV format, you must begin a new PLCO project. Data will be delivered once the project is approved and data transfer agreements are completed.

The following Questionnaires data are available by request:

  1. Baseline Questionnaire (BQ)
  2. Dietary Questionnaire (DQX)
  3. Diet History Questionnaire (DHQ)
  4. Supplemental Questionnaire (SQX)
  5. Medication Use Questionnaire (MUQ)
  6. Brief Survey Questionnaire (BCQ)