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Abstract
Background: Alarm symptoms are used in many cancer referral guidelines. The objectives were to determine the 1-year predictive values (PVs) of colorectal cancer (CRC) alarm symptoms in the general population and to describe the proportion of alarm symptoms reported prior to diagnosis. Methods: A nationwide prospective cohort of 69,060 individuals ≥40 years randomly selected from the Danish population was invited to complete a survey regarding symptoms and healthcare-seeking in 2012. Information on CRC diagnoses in a 12-month follow-up came from the Danish Cancer Registry. PVs and positive and negative likelihood ratios were calculated. Results: A total of 37,455 individuals participated (response rate 54.2%). Sixty-four individuals were diagnosed with CRC. The single symptom with the highest positive PVs (PPV) and LR+ was rectal bleeding. PPVs were generally higher among individuals aged ≥75 years and highest among those reporting at least one specific alarm symptom that led to a GP contact. Conclusion: In general, the PPVs of CRC alarm symptoms are low and the NPVs high, especially in the youngest age groups. The LR + show a relative association with specific symptoms like rectal bleeding. Future campaigns on early diagnosis of CRC should focus on healthcare-seeking when experiencing rectal bleeding and target older people with the highest incidence.
Original language | English |
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Journal | British Journal of Cancer |
Volume | 120 |
Issue number | 6 |
Pages (from-to) | 595-600 |
ISSN | 0007-0920 |
DOIs | |
Publication status | Published - Mar 2019 |
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The Danish Symptom Cohort (DaSC)
Jarbøl, D. E. (Head coordinator), Søndergaard, J. (Project manager), Rasmussen, S. (Project manager), Balasubramaniam, K. (Project manager), Haastrup, P. (Project manager), Lauridsen, G. B. (Project manager), Holst, I. P. R. (Project manager), Sætre, L. M. S. (Project manager) & Eilerskov, N. (Project participant)
01/01/2022 → 01/01/2032
Project: Research
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