Article Text
Abstract
Objective This national analysis aimed to calculate the diagnostic yield from gastroscopy for common symptoms, guiding improved resource utilisation.
Design A cross-sectional study was conducted of diagnostic gastroscopies between 1 March 2019 and 29 February 2020 using the UK National Endoscopy Database. Mixed-effect logistic regression models were used, incorporating random (endoscopist) and fixed (symptoms, age and sex) effects on two dependent variables (endoscopic cancer; Barrett’s oesophagus (BO) diagnosis). Adjusted positive predictive values (aPPVs) were calculated.
Results 382 370 diagnostic gastroscopies were analysed; 30.4% were performed in patients aged <50 and 57.7% on female patients. The overall unadjusted PPV for cancer was 1.0% (males 1.7%; females 0.6%, p<0.01). Other major pathology was found in 9.1% of procedures, whereas 89.9% reported only normal findings or minor pathology (92.5% in females; 94.6% in patients <50).
Highest cancer aPPVs were reached in the over 50s (1.3%), in those with dysphagia (3.0%) or weight loss plus another symptom (1.4%). Cancer aPPVs for all other symptoms were below 1%, and for those under 50, remained below 1% regardless of symptom. Overall, 73.7% of gastroscopies were carried out in patient groups where aPPV cancer was <1%.
The overall unadjusted PPV for BO was 4.1% (males 6.1%; females 2.7%, p<0.01). The aPPV for BO for reflux was 5.8% and ranged from 3.2% to 4.0% for other symptoms.
Conclusions Cancer yield was highest in elderly male patients, and those over 50 with dysphagia. Three-quarters of all gastroscopies were performed on patients whose cancer risk was <1%, suggesting inefficient resource utilisation.
- GASTROSCOPY
- CANCER
- DIAGNOSTIC AND THERAPEUTIC ENDOSCOPY
- BARRETT'S OESOPHAGUS
Data availability statement
Data are available upon reasonable request. Stata Do files available upon reasonable request.
Statistics from Altmetric.com
Data availability statement
Data are available upon reasonable request. Stata Do files available upon reasonable request.
Footnotes
X @BrianDNicholson, @thomas_rosch
Contributors DRB, LS and MDR designed the study, drafted and revised the manuscript, with input from NJT, JD, MT, BDN, TR and AJM. AJM supported data acquisition and PR extracted data from the National Endoscopy Database, LL provided input with data modelling and analysis. DRB analysed the data and acted as guarantor for the work and conduct of the study. All authors approved the manuscript for submission.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests All authors have completed the ICMJE uniform disclosure form at http://www.icmje.org/disclosure-of-interest/ http://www.icmje.org/disclosure-of-interest/. LS has unrestricted project grants from 3D-Matrix and Medtronic. TR is deputy editor at Gut journal. All other authors declare: no support from any organisation for the submitted work; no financial relationships with any organisations that might have an interest in the submitted work in the previous three years; no other relationships or activities that could appear to have influenced the submitted work.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.
Provenance and peer review Not commissioned; externally peer reviewed.
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