What Influence Re-participation in the Danish Colorectal Screening Program.

Re-participation for Screening-colonoscopy - Experience of colonoscpy_1

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT07353632

Enrollment

8000

Registered

2026-01-20

Start date

2024-09-23

Completion date

2027-06-30

Last updated

2026-01-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colonoscopy, Pain, Screening Colonscopy

Keywords

Screening colonoscopy experience, Colorectal cancer screening, Patient-reported outcomes, Pain perception during colonoscopy, Screening re-participation

Brief summary

This prospective observational study investigates how participants experience screening colonoscopy within the Danish colorectal cancer screening program and how these experiences relate to clinical findings, procedural factors, and future participation in screening. The study aims to evaluate patient-reported experiences such as pain, discomfort, preparation burden, emotional responses, and perceptions of healthcare staff, as well as staff-assessed pain during the procedure. These experiences will be examined in relation to colonoscopy findings, including polyp detection, histology, risk stratification, and colorectal cancer detection. In addition, procedure-specific variables such as insertion time, bowel preparation quality, completeness of colonoscopy, medication use, and adenoma detection rate will be analyzed in relation to patient experience. A key focus is whether the experience of screening colonoscopy influences subsequent participation in the colorectal cancer screening program, particularly among individuals classified as low risk and re-invited for screening after two years. Registry-based follow-up will be used to assess re-participation. Data are collected prospectively from two sources: (1) real-time procedure data entered by healthcare staff during colonoscopy and (2) patient-reported outcomes collected via a questionnaire completed shortly after the procedure. Additional outcome data are obtained from electronic medical records and national health and screening registries. The study has no single predefined hypothesis. Instead, it serves as a data-generating platform designed to address both predefined and future research questions related to screening colonoscopy experiences, quality indicators, and screening adherence.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

50 Years to 75 Years

Healthy volunteers

Inclusion criteria

* Adults undergoing screening-derived colonoscopy as part of the Danish colorectal cancer screening program * Written informed consent

Exclusion criteria

* Inability to understand or communicate in Danish * Lack of decision-making capacity, including cognitive impairment due to dementia or brain injury * Declines or withdraws informed consent

Design outcomes

Primary

Measure	Time frame	Description
Pain experienced during colonoscopy, reported by the patient	apr. 15min after colonoscopy	11-point numerical rating scale ranging from 0 (least pain) to 10(most pain)

Secondary

Measure	Time frame	Description
Re-participation in screening	2 years following colonoscopy	2-year Re-participation rate for those calssified as low risk after index colonoscopy

Countries

Denmark

Contacts

CONTACTMagnus Ploug, phd

magnus.ploug@rsyd.dk+45 26175029

CONTACTAnitta Øhlenschlæger, Research secretary

SVS-Forskning@rsyd.dk+45 21 33 86 07

Outcome results