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Liying Qiao 1 Article
Integrated database-based Screening Cohort for Asian Nomadic descendants in China (Scan-China): Insights on prospective ethnicity-focused cancer screening
Yuelin Yu, Liying Qiao, Jing Han, Weiwei Wang, Weiwei Kang, Yunjing Zhang, Shu Shang, Ruogu Meng, Lin Zhuo, Siyan Zhan, Yunfeng Xi, Shengfeng Wang
Epidemiol Health. 2023;45:e2023048.   Published online April 18, 2023
DOI: https://doi.org/10.4178/epih.e2023048
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Abstract
Established in 2017, the Screening Cohort for Asian Nomadic descendants in China (Scan-China) has benefited over 180,000 members of a multi-ethnic population, particularly individuals of Mongolian descent compared with the general population (Han ethnicity), in the Inner Mongolia Autonomous Region, China. This cohort study aims to evaluate the effectiveness of cancer screening and serve as a real-world data platform for cancer studies. The 6 most prevalent cancers in China are considered—namely, breast, lung, colorectal, gastric, liver and esophageal cancer. After baseline cancer risk assessments and screening tests, both active and passive follow-up (based on the healthcare insurance database, cancer registry, the front page of hospital medical records, and death certificates) will be conducted to trace participants’ onset and progression of cancers and other prevalent chronic diseases. Scan-China has preliminarily found a disproportionately lower screening participation rate and higher incidence/mortality rates of esophageal and breast cancer among the Mongolian population than among their Han counterparts. Further research will explore the cancer burden, natural history, treatment patterns, and risk factors of the target cancers.
Summary
Key Message
- Scan-China is the first and largest electronic health data (EHD)-integrated cancer screening program for the Mongolian ethnicity in Inner Mongolia. - Scan-China aims to evaluate the effectiveness of screening interventions, particularly on ethnic minorities, portray the natural history, explore risk factors and summarize treatment patterns and updated outcomes of prevalent tumors/other chronic diseases. - Scan-China database comprises baseline cancer risk assessment, screening tests results, active follow-up investigation for participants at high risk and EHD-integrated passive follow-up. Data sources for passive follow-up include healthcare insurance database, cancer registry, front page of hospital medical record and death certificates.

Epidemiol Health : Epidemiology and Health