• Ruth Swann, Sean McPhail, Jana Witt, Brian Shand, Gary A Abel, Sara Hiom, Jem Rashbass, Georgios Lyratzopoulos, Greg Rubin, and National Cancer Diagnosis Audit Steering Group.
• National Cancer Registration and Analysis Service, Public Health England, London, and Cancer Research UK, London.
• Br J Gen Pract. 2018 Jan 1; 68 (666): e63e72e63-e72.

BackgroundContinual improvements in diagnostic processes are needed to minimise the proportion of patients with cancer who experience diagnostic delays. Clinical audit is a means of achieving this.AimTo characterise key aspects of the diagnostic process for cancer and to generate baseline measures for future re-audit.Design And SettingClinical audit of cancer diagnosis in general practices in England.MethodInformation on patient and tumour characteristics held in the English National Cancer Registry was supplemented by information from GPs in participating practices. Data items included diagnostic timepoints, patient characteristics, and clinical management.ResultsData were collected on 17 042 patients with a new diagnosis of cancer during 2014 from 439 practices. Participating practices were similar to non-participating ones, particularly regarding population age, urban/rural location, and practice-based patient experience measures. The median diagnostic interval for all patients was 40 days (interquartile range [IQR] 15-86 days). Most patients were referred promptly (median primary care interval 5 days [IQR 0-27 days]). Where GPs deemed diagnostic delays to have occurred (22% of cases), patient, clinician, or system factors were responsible in 26%, 28%, and 34% of instances, respectively. Safety netting was recorded for 44% of patients. At least one primary care-led investigation was carried out for 45% of patients. Most patients (76%) had at least one existing comorbid condition; 21% had three or more.ConclusionThe findings identify avenues for quality improvement activity and provide a baseline for future audit of the impact of 2015 National Institute for Health and Care Excellence guidance on management and referral of suspected cancer.© British Journal of General Practice 2018.

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