CRC screening uptake: reminders reduce demographic disparity in Danish study

  • Deding U, et al.
  • Int J Colorectal Dis

  • curated by David Reilly
  • Univadis Clinical Summaries
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Takeaway

  • In a Danish population invited for colorectal cancer (CRC) screening, dissemination of reminders generally reduced demographic participation inequalities but increased socioeconomic participation inequalities. 

Why this matters

  • Evidence suggests that the use of reminders for CRC screening may help to overcome socioeconomic and demographic impediments to participation. 

Study design

  • Study to investigate the effect of socioeconomic and demographic factors on participation in 763,511 individuals invited for CRC screening between 2014 and 2015.
  • Data source: Danish Colorectal Cancer Screening Database.
  • Funding: None disclosed. 

Key results

  • 50.70% underwent CRC screening following initial invitation.
  • Reminders were sent to 376,395 individuals, among whom 35.46% subsequently underwent CRC screening.
  • Reminders reduced differences in participation by demographic factors; regarding age, for example:
    • OR for nonparticipation among participants aged >70 years (vs
  • Differences in participation by socioeconomic status were increased following dissemination of reminders; regarding income quartile, for example:
    • OR=0.54 (95% CI, 0.53-0.55) for nonparticipation in those in the fourth quartile of income (vs first quartile) at initial invitation vs 0.44 (95% CI, 0.43-0.45) after reminder. ​​​​​​​

Limitations

  • Retrospective data.

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