Association Between Socioeconomic Status and Adherence to Fecal Occult Blood Tests in Colorectal Cancer Screening Programs: Systematic Review and Meta-Analysis of Observational Studies

Zilin Luo   ^{1, 2 *} , BCh ;   Xuesi Dong   ^{1, 2 *} , PhD ;   Chenran Wang   ^{1, 2 *} , MM ;   Wei Cao   ^{1, 2} , PhD ;   Yadi Zheng   ^{1, 2} , BCh ;   Zheng Wu   ^{1, 2} , BCh ;   Yongjie Xu   ^{1, 2} , PhD ;   Liang Zhao   ^{1, 2} , BCh ;   Fei Wang   ^{1, 2} , PhD ;   Jibin Li   ¹ , MPH ;   Jiansong Ren   ^{1, 2} , PhD ;   Jufang Shi   ^{1, 2} , PhD ;   Wanqing Chen   ^{1, 2} , PhD ;   Ni Li   ^{1, 2, 3} , PhD

¹ Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China

² Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China

³ Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China

*these authors contributed equally