References
- Bray F, Ferlay J, Soerjomataram I, et al. Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin. 2018;68(6):394–424.
- Hamilton W, Lancashire R, Sharp D, et al. The risk of colorectal cancer with symptoms at different ages and between the sexes: a case-control study. BMC Med. 2009;7:17.
- Edna TH, Karlsen V, Jullumstro E, et al. Prevalence of anaemia at diagnosis of colorectal cancer: assessment of associated risk factors. Hepatogastroenterology. 2012;59(115):713–716.
- Kwon YH, Lim HK, Kim MJ, et al. Impacts of anemia and transfusion on oncologic outcomes in patients undergoing surgery for colorectal cancer. Int J Colorectal Dis. 2020;35(7):1311–1320.
- Stapley S, Peters TJ, Sharp D, et al. The mortality of colorectal cancer in relation to the initial symptom at presentation to primary care and to the duration of symptoms: a cohort study using medical records. Br J Cancer. 2006;95(10):1321–1325.
- Vayrynen JP, Tuomisto A, Vayrynen SA, et al. Preoperative anemia in colorectal cancer: relationships with tumor characteristics, systemic inflammation, and survival. Sci Rep. 2018;8(1):1126.
- Ewing M, Naredi P, Zhang C, et al. Identification of patients with non-metastatic colorectal cancer in primary care: a case-control study. Br J Gen Pract. 2016;66(653):e880–e886.
- Hamilton W, Lancashire R, Sharp D, et al. The importance of anaemia in diagnosing colorectal cancer: a case-control study using electronic primary care records. Br J Cancer. 2008;98(2):323–327.
- Edgren G, Bagnardi V, Bellocco R, et al. Pattern of declining hemoglobin concentration before cancer diagnosis. Int J Cancer. 2010;127(6):1429–1436.
- Goldshtein I, Neeman U, Chodick G, et al. Variations in hemoglobin before colorectal cancer diagnosis. Eur J Cancer Prev. 2010;19(5):342–344.
- Kinar Y, Akiva P, Choman E, et al. Performance analysis of a machine learning flagging system used to identify a group of individuals at a high risk for colorectal cancer. PLoS One. 2017;12(2):e0171759.
- Kinar Y, Kalkstein N, Akiva P, et al. Development and validation of a predictive model for detection of colorectal cancer in primary care by analysis of complete blood counts: a binational retrospective study. J Am Med Inform Assoc. 2016;23(5):879–890.
- Svenska Kolorektalcancerregistret: Tarmcancerrapport 2018. Regionalt cancercentrum Norr Norrlands universitetssjukhus SE-901 85 UMEÅ: Svenska Kolorektalcancerregistret; 2019. p. 20.
- International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10)-WHO Version for; 2016 WHO; 2016 [updated 2018 Jan; cited 2019]. Available from: https://icd.who.int/browse10/2016/en
- WHO VMNIS: Haemoglobin concentrations for the diagnosis of anaemia and assessment of severity. [Internet]. Evidence and Programme Guidance Unit Nutrition for Health and Development. World Health Organization. [cited 2019 Jan 30]. Available from: https://www.who.int/vmnis/indicators/haemoglobin.pdf
- Statistics Sweden; 2020 [cited 2021 Jan 21]. Available from: https://www.scb.se/en/
- Siminoff LA, Rogers HL, Harris-Haywood S. Missed opportunities for the diagnosis of colorectal cancer. Biomed Res Int. 2015;2015:1–9.
- Singh H, Daci K, Petersen LA, et al. Missed opportunities to initiate endoscopic evaluation for colorectal cancer diagnosis. Am J Gastroenterol. 2009;104(10):2543–2554.
- Yates JM, Logan EC, Stewart RM. Iron deficiency anaemia in general practice: clinical outcomes over three years and factors influencing diagnostic investigations. Postgrad Med J. 2004;80(945):405–410.
- Damery S, Ryan R, Wilson S, Improving Colorectal Outcomes Group, et al. Improving Colorectal Outcomes G. Iron deficiency anaemia and delayed diagnosis of colorectal cancer: a retrospective cohort study. Colorectal Dis. 2011;13(4):e53–e60.
- Droogendijk J, Beukers R, Berendes PB, et al. Screening for gastrointestinal malignancy in patients with iron deficiency anemia by general practitioners: an observational study. Scand J Gastroenterol. 2011;46(9):1105–1110.
- Schop A, Stouten K, Riedl J, et al. Long-term outcomes in patients newly diagnosed with iron deficiency anaemia in general practice: a retrospective cohort study. BMJ Open. 2019;9(11):e032930.
- Haug U, Kuntz KM, Knudsen AB, et al. Sensitivity of immunochemical faecal occult blood testing for detecting left- vs right-sided colorectal neoplasia. Br J Cancer. 2011;104(11):1779–1785.