Skip to Main Content

An official website of the United States government

The following PLCO Liver 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 data-only request. Data will be delivered once the project is approved and data transfer agreements are completed.

To learn more about the Liver data collected as part of the study, visit the PLCO Data Collected documentation page.

Datasets and Data Dictionaries

Files Description
Data Dictionary
(PDF - 308.2 KB)
1. The Liver dataset is a comprehensive dataset that contains nearly all the PLCO study data available for liver cancer incidence and mortality analyses. The dataset contains one record for each of the approximately 155,000 participants in the PLCO trial.

User Guides and Other Files

User Guides are intended to serve as a guide to using the data contained in these datasets.

PLCO User Guide
(PDF - 291.4 KB)

Data-Collection Forms

The following forms were used to collect data that is now available in the datasets listed above. They are provided in PDF format.

Baseline Questionnaire - Female
BQF3 - Scanned (1.7 MB)
Baseline Questionnaire - Male
BQM3 - Scanned (1.6 MB)
Other Cancer Form
OCF - Scanned (405.5 KB)
Annual Study Update Form
ASU - Scanned (82.2 KB)