Does Observed Survival Advantage of Immigrant Populations Indicate Incomplete F

根据基于人群的癌症登记数据得出的癌症存活率统计数据为癌症控制工作提供了重要的措施。随访数据对于这些目标是必不可少的，然而，相对于癌症发病率病例数据，这些数据在完整性方面提出了独特的挑战。考虑到医疗移民、因追求医疗保健而进行的临时或永久迁移，特别是离境和在国外死亡的病例之间的迁移，是一个特别困难的挑战。在癌症监测的背景下，这种迁移可能会影响当前的生存统计数据，支持健康移民效应，在美国拉美裔人口中，被称为拉美裔悖论。将进行一项基于登记的研究，以系统地检查随访过程和程序，全面检查数据，以确定具有不同随访数据的子组，通过主题追踪改善随访数据，并开发和提出解决不同随访的方法。

Cancer survival statistics derived from population-based cancer registry data provide important measures for cancer control efforts. Follow-up data are essential to these aims, yet, relative to cancer incidence case data, these data present unique challenges associated with completeness. Accounting for medical migrations, temporary or permanent relocations motivated by the pursuit of healthcare, especially migrations among cases who leave the country and die abroad, is an especially difficult challenge. In the context of cancer surveillance, such migrations potentially impact current survival statistics that support a ¿healthy immigrant effect¿, and among the US Hispanic population, has been termed the ¿Hispanic paradox.¿ A registry based study will be conducted to systematically examine the follow-up process and procedures, comprehensively examine the data to identify subgroups with differential follow-up data, improve follow-up data through subject tracing, and develop and propose approaches for addressing differential follow-up.