• Family practice · Jul 2022

    Patient-reported diagnostic intervals to colorectal cancer diagnosis in the Midland region of New Zealand: a prospective cohort study.

    • Tania Blackmore, Lynne Chepulis, Keenan Rawiri, Jacquie Kidd, Tim Stokes, Melissa Firth, Mark Elwood, David Weller, Jon Emery, and Ross Lawrenson.
    • Medical Research Centre, University of Waikato, Hamilton, New Zealand.
    • Fam Pract. 2022 Jul 19; 39 (4): 639-647.

    Background And ObjectivesNew Zealand (NZ) has high rates of colorectal cancer (CRC) but low rates of early detection. The majority of CRC is diagnosed through general practice, where lengthy diagnostic intervals are common. We investigated factors contributing to diagnostic delay in a cohort of patients newly diagnosed with CRC.MethodsPatients were recruited from the Midland region and interviewed about their diagnostic experience using a questionnaire based on a modified Model of Pathways to Treatment framework and SYMPTOM questionnaire. Descriptive statistics were used to describe the population characteristics. Chi-square analysis and logistic regression were used to analyse factors influencing diagnostic intervals.ResultsData from 176 patients were analysed, of which 65 (36.9%) experienced a general practitioner (GP) diagnostic interval of >120 days and 96 (54.5%) experienced a total diagnostic interval (TDI) > 120 days. Patients reporting rectal bleeding were less likely to experience a long TDI (odds ratio [OR] 0.34, 95% confidence interval [CI]: 0.14-0.78) and appraisal/help-seeking interval (OR, 0.19, 95% CI: 0.06-0.59). Patients <60 were more likely to report a longer appraisal/help-seeking interval (OR, 3.32, 95% CI: 1.17-9.46). Female (OR, 2.19, 95% CI: 1.08-4.44) and Māori patients (OR, 3.18, 95% CI: 1.04-9.78) were more likely to experience a long GP diagnostic interval.ConclusionNZ patients with CRC can experience long diagnostic intervals, attributed to patient and health system factors. Young patients, Māori, females, and patients experiencing change of bowel habit may be at particular risk. We need to increase symptom awareness of CRC for patients and GPs. Concentrated efforts are needed to ensure equity for Māori in access to screening, diagnostics, and treatment.© The Author(s) 2021. Published by Oxford University Press.

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