Center for Clinical Observational Investigations

Large clinical datasets are an essential resource for biomedical research as they can allow for greater strength and reliability in findings and may reduce the need for some traditional research trials.  The mission of the Center for Clinical Observational Investigations (CCOI) is to reduce barriers to finding and evaluating for use relevant clinical datasets by providing a curated metadata profile comprised of an overview, basic statistics, and concept counts for each clinical dataset.

CCOI New Data Sources

Recently Released: SEER data profile

Surveillance, Epidemiology, and End Results (SEER)- an authoritative source for cancer statistics in the United States supported by the Surveillance Research Program (SRP) in NCI's Division of Cancer Control and Population Sciences (DCCPS).

Recently Released: NAMCS data profile

National Ambulatory Medical Care Survey (NAMCS) is an ongoing national survey of ambulatory medical services provided to patients, conducted by the CDC National Center for Health Statistics.