Which two agencies provide data covering 100% of the US population when both are combined?

The combination of the National Program of Cancer Registries (NPCR) and the Surveillance, Epidemiology, and End Results (SEER) program provides comprehensive cancer data that covers nearly the entire US population. NPCR, administered by the Centers for Disease Control and Prevention (CDC), collects cancer incidence data from state cancer registries, while SEER, managed by the National Cancer Institute (NCI), focuses on population-based cancer statistics and research. Together, they create a robust cancer surveillance system that captures data from a vast majority of the population, ensuring more complete reporting and a better understanding of cancer trends across different demographics and regions.

This seamless integration of both programs maximizes coverage, enhancing public health responses and cancer control initiatives across the country. Thus, the combination of their data results in a nearly comprehensive representation of cancer incidence in the United States.