UNASSIGNED: 1558 Background: Regular screening for early detection can decrease @entity5 mortality. Our aim was to identify factors associated with recurrent screening among all @entity1 eligible to be screened for @entity356 . METHODS: The study population was derived from National @entity5 Screening Program data maintained by the National Health Insurance Corporation. The study population was restricted to @entity1 among the NCSP-recommended invited population who were screened for @entity356 in 2005 and 2006. We identified whether these @entity1 attended the @entity356 screening program again after 2 years. Finally, 4,060,257 @entity1 were selected as study subjects. Logistic regression was used to identify factors associated with rescreening behavior. RESULTS: 59.4% of baseline @entity1 attended a subsequent screening program 2 years later. NHI beneficiaries with a premium over 50% were significantly more likely to be rescreened than were those on medical aid (OR = 2.14, CI = 2.12-2.16). Subjects who experienced a 'true negative' result at baseline screening were more likely to be screened again (OR = 1.03, CI = 1.02-1.04). @entity1 who had an upper gastrointestinal series at the baseline test were more likely to be rescreened than those who had an endoscopy. In addition, experience with a previous opportunity to be screened and prior @entity356 screening attendance were correlated with rescreening (p < 0.05). CONCLUSIONS: The study results highlight that income level affected the rescreening rate despite full support by the NCSP for low-income @entity1 . Furthermore, continuous exposure to the screening program under the NCSP increased the rescreening rate.

Factors associated with on-time regular screening among the Korean population eligible to be screened for @entity356 : A nationwide retrospective cohort study based on National XXXX Screening Program (NCSP) data.

@entity5 :: ('MESH:D009369', 'Disease') :: ['cancer', 'Cancer'] @entity1 :: ('9606', 'Species') :: ['participants', 'people', 'persons', 'People'] @entity356 :: ('MESH:D013274', 'Disease') :: ['gastric cancer', 'gastric-cancer']
@entity5 :: (MESH:D009369,Disease) :: ['Cancer']
