The Central Tumor Registry of the United States Department of Defense is an example of which type of registry?

The Central Tumor Registry of the United States Department of Defense is classified as a non-population-based central cancer registry because it collects and maintains data primarily on patients who receive care within the military healthcare system, rather than the general population. This registry focuses on specific populations, such as military personnel and their dependents, thereby reflecting the occurrence of cancer within this defined group rather than the broader community.

Non-population-based registries, like this one, are designed to track individuals in specific healthcare settings rather than to capture data from a wide-ranging demographic, making them unique compared to population-based registries that aim to gather comprehensive data for entire populations across geographical areas. This focus on a specific cohort allows for detailed analysis and monitoring of cancer cases within that population, as well as targeted research and healthcare planning related to cancer in the military community.

In contrast, population-based central cancer registries would encompass a wider geographic area and include data from various hospitals and institutions serving the general public, allowing for a more extensive understanding of cancer incidence and trends across a particular population.