• Yin Zhou, Hardeep Singh, Willie Hamilton, Stephanie Archer, Sapphire Tan, James Brimicombe, Georgios Lyratzopoulos, and Fiona M Walter.
• Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK.
• Br J Gen Pract. 2023 Aug 1; 73 (733): e575e585e575-e585.

BackgroundPatients with bladder and kidney cancer may experience diagnostic delays.AimTo identify patterns of suboptimal care and contributors of potential missed diagnostic opportunities (MDOs).Design And SettingProspective, mixed-methods study recruiting participants from nine general practices in Eastern England between June 2018 and October 2019.MethodPatients with possible bladder and kidney cancer were identified using eligibility criteria based on National Institute for Health and Care Excellence (NICE) guidelines for suspected cancer. Primary care records were reviewed at recruitment and at 1 year for data on symptoms, tests, referrals, and diagnosis. Referral predictors were examined using logistic regression. Semi-structured interviews were undertaken with 15 patients to explore their experiences of the diagnostic process, and these were analysed thematically.ResultsParticipants (n = 940) were mostly female (n = 657, 69.9%), with a median age of 71 years (interquartile range 64-77 years). In total, 268 (28.5%) received a referral and 465 (48.5%) had a final diagnosis of urinary tract infection (UTI). There were 33 (3.5%) patients who were diagnosed with cancer, including prostate (n = 17), bladder (n = 7), and upper urothelial tract (n = 1) cancers. Among referred patients, those who had a final diagnosis of UTI had the longest time to referral (median 81.5 days). Only one-third of patients with recurrent UTIs were referred despite meeting NICE referral guidelines. Qualitative findings revealed barriers during the diagnostic process, including inadequate clinical examination, female patients given repeated antibiotics without clinical reviews, and suboptimal communication of test results to patients.ConclusionOlder females with UTIs might be at increased risk of MDOs for cancer. Targeting barriers during the initial diagnostic assessment and follow-up might improve quality of diagnosis.© The Authors.

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