TO PROVIDE THE DENOMINATOR DATA REQUIRED FOR THE NCI TO RELEASE CANCER RATES BY SINGLE RACE AND ETHNICITY AMONG IMMIGRANTS AND EASY-TO-ACCESS ACS SAMP

研究移民中癌症发病率和死亡率的种族差异需要按移民身份和单一种族分类的人口数据。美国社区调查（ACS）是估计人口的唯一权威数据来源，因为移民身份不包括在十年一次的人口普查中。然而，ACS种族数据需要被桥接为基于ACS的人群的单一种族格式，以用于计算癌症发病率。之前与明尼苏达大学签订的合同（合同编号：HHSN 75N91019P00786）开发了一种种族桥梁方法，并根据单一种族和移民身份估算了2005-2017年的年度人口。该合同以之前的合同为基础，将人口估计扩展到未来几年，并将新开发的单一种族变量整合到2005年至2019年的ACS样本中，该数据查询系统被UM开发为IPUMS，允许通过其他风险因素提取单一种族人口。

The study of racial disparities in cancer incidence and mortality rates among immigrants requires population data by immigration status and single-race categories. The American Community Survey (ACS) is the only authoritative data source for estimating populations, as immigration status is not collected in the decennial censuses. However, ACS race data needs to be bridged into a single-race format for ACS-based populations to be usable for calculating cancer rates. A previous contract with the University of Minnesota (Contract number: HHSN 75N91019P00786) has developed a race-bridging method and produced annual population estimates by single-race and immigration status for 2005-2017. This contract builds on this previous contract to extend the population estimates to future years and integrate the newly developed single-race variable into ACS samples from 2005 to 2019 in a data-inquiry system that UM has developed to called IPUMS to allow extracting single-race population by other risk factors. The Department of Health and Human Services, National Institutes of Health (NIH), National Cancer Institute (NCI), Division of Cancer Control and Population Sciences (DCCPS), Surveillance Research Program (SRP) requires population estimates by single-race and nativity (i.e. US-born and foreign-born) for 2018-2019 calculated using individual level data from the American Community Survey (ACS). The deliverables provided under the subsequent purchase order will provide the denominator data required for the NCI to release cancer rates by single race and ethnicity among immigrants, and easy-to-access ACS samples that the NCI will be able to use to generate population estimates by alternative specifications.