Several questionnaires were administered to participants near the time of enrollment. Basic data were collected on eligibility criteria such as cigarette smoking, age, and several other criteria using the following forms:

• LSS EVF (PDF - 148 KB)
• ACRIN E1 (ACRIN NLST CRF Set)

After being determined eligible, participants completed more extensive questionnaires about demographics, medical history, and health habits using the following forms:

• LSS MHQ (PDF - 193 KB)
• ACRIN DP (ACRIN NLST CRF Set)
• ACRIN SS (ACRIN NLST CRF Set)

Data from these questionnaires can be found in the Participant dataset.

Summary	Available Data
Participant-reported data Covers ~53,000 participants	Demographics Smoking History Passive Smoke Exposure Occupational History Family History of Lung Cancer Height and Weight Medical Conditions & History of Disease Personal History of Cancer Alcohol History