• S Damery, R Ryan, S Wilson, T Ismail, R Hobbs, and Improving Colorectal Outcomes Group.
• Primary Care Clinical Sciences, School of Health and Population Sciences, University of Birmingham, Edgbaston, Birmingham, UK.
• Colorectal Dis. 2011 Apr 1;13(4):e53-60.

AimThe extent to which different referral pathways following a primary care diagnosis of iron deficiency anaemia (IDA) are associated with delay in diagnosis of colorectal cancer (CRC) was determined.MethodEligible patients aged 40 or more years, with IDA diagnosed in primary care, and a subsequent diagnosis of CRC, were studied retrospectively. Referral pathways were identified using the specialty of first recorded GP referral following IDA diagnosis. Differences in time to diagnosis of CRC were assessed by referral specialty. Differences in the proportion of cases referred before and after the re-issue of the NICE urgent referral guidelines for suspected lower gastrointestinal (GI) cancer were also assessed.ResultsOf 628,882 eligible patients, 3.1% (n = 19,349) were diagnosed with IDA during the study period; 3.0% (n = 578) were subsequently diagnosed with CRC. Two hundred and fifty-nine (44.8%) patients had no recorded referral or a referral unrelated to anaemia or the GI tract. Only 35% (n = 201) of patients were referred to a relevant specialty. Median time to CRC diagnosis ranged from 2.5 months (referral to a relevant surgical specialty) to 31.9 months (haematology). Time to diagnosis was longer in patients referred to a medical compared with a relevant surgical specialty (P = 0.024). There was no significant difference in time to CRC diagnosis before and after the NICE guidelines were re-issued in 2005.ConclusionSignificant differences exist between referral specialties in time to CRC diagnosis following a primary care diagnosis of IDA. Despite NICE referral recommendations, a significant proportion of patients are still not managed within recommended care pathways to CRC diagnosis.© 2011 The Authors. Colorectal Disease © 2011 The Association of Coloproctology of Great Britain and Ireland.

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