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Government Funding Lapse

Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit  cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at OPM.gov.

The following PLCO SCU 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 SCU data collected as part of the study, visit the PLCO SCU documentation page.


Datasets and Data Dictionaries

Files Description
Data Dictionary
(PDF - 172.8 KB)
1. The SCU dataset contains information for 4100 PLCO participants, focused primarily on the utilization of colonoscopy as surveillance to baseline colonoscopy. The dataset also contains site-specific data collected through PLCO.

User Guides and Other Files

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

For PLCO:
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.

SCU Colonoscopy Questionnaire
CQX - Scanned (298.8 KB)
Baseline Questionnaire - Female
BQF1
BQF2
BQF3 - Scanned (1.7 MB)
Baseline Questionnaire - Male
BQM1
BQM2
BQM3 - Scanned (1.6 MB)
Flexible Sigmoidoscopy Screening Exam Form
FSG1
FSG2 - Scanned (584.8 KB)
Colorectal Diagnostic Evaluation Form
DEC
DEC2
DEC3 - Scanned (3.1 MB)