Quality improvement project identifies factors associated with delay in IBD diagnosis
Gareth J Walker1,2, Simeng Lin1,2, Neil Chanchlani1
1Exeter IBD and Pharmacogenetics Research Group, Exeter, UK.
Background:
Delay in the diagnosis of inflammatory bowel disease (IBD) is common and contemporary UK studies are lacking.
Aim:
To determine factors associated with, and the consequences of, a prolonged time to diagnosis in IBD.
Methods:
This quality improvement study included 304 adults with a new IBD diagnosis made between January 2014 and December 2017 across 49 general practices (GP) and gastroenterology secondary care services. Outcome measures were demographic, clinical and laboratory factors associated with a delayed time, defined as greater than upper quartile, to: (a) patient presentation (b) GP referral (c) secondary care diagnosis, and factors associated with a complicated disease course (hospitalisation and/or surgery and/or biologic treatment) in the year after diagnosis.
Results:
The median [IQR] diagnosis sub-intervals were: (a) patient = 2.1 months [0.9-5.1]; (b) GP = 0.3 months [0.0-0.9]; (c) secondary care = 1.1 months [0.5-2.1]. 50% of patients were diagnosed within 4 months and 92% were diagnosed within 2 years of symptom onset. Diagnostic delay was more common in Crohn's disease (7.6 months [3.1-15.0]) than ulcerative colitis (3.3 months [1.9-7.3]) (P < 0.001). Patients who presented as an emergency (P < 0.001) but not those with a delayed overall time to diagnosis (P = 0.35) were more likely to have a complicated disease course.
Conclusion:
Time to patient presentation is the largest component of time to IBD diagnosis. Emergency presentation is common and, unlike a delayed time to diagnosis, is associated with a complicated disease course.
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