Trial reportDeutsches Arzteblatt international2018
Invitation to Screening Colonoscopy in the Population at Familial Risk for Colorectal Cancer.
Trial report in Deutsches Arzteblatt international, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.
- Mapping psychosocial interventions in familial colorectal cancer: a rapid systematic review.BMC cancer · 2022Pooled it
- Increasing Influenza Vaccination Rates in People With Chronic Illness.Deutsches Arzteblatt international · 2019Pooled it
- Prevalence of Screening Colonoscopy among the First-Degree Relatives of Patients with Colorectal Cancer and Related Factors.Middle East journal of digestive diseases · 2025Article
- Colonoscopy Uptake in First-Degree Relatives of CRC Patients: Challenges and Intervention Strategies.Patient preference and adherence · 2025Review
- Influencing factors of colonoscopy screening in first-degree relatives of hospitalized colorectal cancer patients and preliminary clinical practices to improve the compliance.Frontiers in oncology · 2025Article
- Colorectal Cancer Screening for Persons With a Positive Family History—Evaluation of the FARKOR Program for the Secondary Prevention of Colorectal Cancer in Persons Aged 25 to 50.Deutsches Arzteblatt international · 2023Observational
- An investigation of efficient nursing interventions in early diagnosis of cancer: A systematic review and meta-analysis.Journal of family medicine and primary care · 2021Article
- Awareness, attitude and barriers of colorectal cancer screening among high-risk populations in China: a cross-sectional study.BMJ open · 2021Article
- What is the effectiveness of various invitation methods to a colonoscopy in the early detection and prevention of colorectal cancer? Protocol of a systematic review.Systematic reviews · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundScreening colonoscopy can lower the incidence of colorectal cancer (CRC), yet participation rates are low even in groups at high risk. The goal of this study was to double the rate of participation in screening colonoscopy among persons at familial risk and then to determine the frequency of neoplasia in this risk group.
methodsIn a nationwide, cluster-randomized, multicenter study, first-degree relatives (FDR) of patients with CRC across Germany received written informational materials concerning the familial risk of CRC, along with an invitation to undergo colonoscopy. Participants in the intervention group were additionally counseled by nurses over the telephone. The primary endpoint of the study was colonoscopy uptake within 30 days.
resultsThe participants' mean age was 50.8 years. The colonoscopy uptake rates were 99/125 (79%) in the intervention group and 97/136 (71%) in the control group (RR = 1.11; 95% confidence interval [0.97; 1.28]). A polypectomy was performed in 72 of 196 asymptomatic persons (37%). In 13 cases (7%), an advanced neoplasia was detected; two of these persons had colon cancer (stages T0 and T1). 42% of the participants expressed barriers against colonoscopy. 22 reported mild side effects; there were no serious side effects.
conclusionAdditional counseling by nurses over the telephone does not increase the participation rate. Approaching patients who have CRC is an opportunity to increase the participation of their first-degree relatives in screening colonoscopy. The frequency of neoplasia that was found in this study underscores the need to screen relatives even before they reach the usual age threshold for screening.
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