Observational Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Feb 28, 2015; 21(8): 2460-2466
Published online Feb 28, 2015. doi: 10.3748/wjg.v21.i8.2460
Table 1 Target population of the follow-up study
Screening methodSexParticipants in 2005 (n)Follow-up
20062007200820092010
EndoscopyMen647663146170602958975771
Women989797979707961595259442
Regular radiographyMen701968416683654863846246
Women112021108710985108791077510682
PhotofluorographyMen518850564939482447174614
Women107391063810545104501035710270