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Participants Years enrollment close-out today
Baseline Questionnaire (BQ) ~154,000 1993-2001
Dietary Questionnaire I-only (DQX) ~63,000 1993-2001
Diet History Questionnaire (DHQ) ~119,000 1998-2004
Supplemental Questionnaire (SQX) ~104,000 2006-2007
Medical Use Questionnaire (MUQ) ~60,000 2013
Brief Survey (BCQ) ~47,000 2017-2018
Collection of Cancers
Collection of Mortality

Medication Use (MUQ)

The Medication Use Questionnaire (MUQ) was administered in 2013. The questionnaire primarily asked participants about medication use. Participants were asked to provide information on aspirin, acetaminophen, and nonsteroidal anti-inflammatory drug (NSAID) use in the 12 months prior to form completion, and to list all prescription medications taken within 30 days of form completion. The MUQ also asked participants to provide their current weight and smoking status, and asked for consent to collect participants' Medicare data.

Approximately 59,000 MUQ questionnaires were collected. The median time for MUQ completion was 16 years into the trial.

MUQ data can be obtained in the Medication Use Questionnaire datasets.

Summary Available Data
  • Participant-reported data
  • Covers 58,895 participants
  • Administered in 2013
  • Median time into study collected: 16 years
  • Forms used:
  • Form completion details
  • Family history of cancer
  • Aspirin, Acetaminophen, and NSAID usage
  • Prescription drug usage
  • Weight and BMI
  • Smoking status