Which registry is known for mainly utilizing a universal patient identifier and having distinct rules for counting multiple primaries?

The International Registry is recognized for primarily using a universal patient identifier, which enables the consistent and accurate tracking of patient data across different countries and healthcare systems. This universal identifier helps to mitigate confusion and complications that can arise from variations in how different registries manage patient identification, ultimately enhancing the quality and integrity of data collected for research and public health purposes.

Additionally, the International Registry has established specific criteria and distinct rules for counting multiple primary cancers. This aspect is crucial because different cancer types may arise independently in the same patient, and accurate identification of these multiple primary malignancies is important for understanding cancer incidence and outcomes on a global scale. By setting standardized rules, the International Registry ensures that data collected is comparable and valid for international studies and analyses.

In contrast to other registries, such as Pediatric Registries or the NCI Registry, which may focus on specific populations or cancer types, the International Registry aims to create a comprehensive data set that represents a broader spectrum of cancer cases internationally, thereby enhancing global cancer surveillance and research efforts.