A Study Evaluating the Accuracy of Triage for Breast Referrals During the Covid-19 Pandemic in a Tertiary Hospital

OBJECTIVE: To evaluate the accuracy of breast referral triage during Covid-19. DESIGN: Retrospective case study. SETTING: Primrose Breast Unit, Derriford Hospital, Plymouth. From March 17th to June 30th to encompass the height of the pandemic and the early enforced changes to practice. PARTICIPANTS: All referrals received, triaged, and seen (n = 870) in the unit, identified by referral records. MAIN OUTCOME MEASURES: The primary outcome measure of a positive disease state was of a histological diagnosis of cancer, with the absence of a cancer diagnosis representing a negative disease state. Accuracy has been determined by sensitivity and specificity calculations; thus defined by correctly triaging cancers to face-to-face clinics and benign cases to telephone or video clinics. RESULTS: Sixty-eight cancers (7.8% of referrals) were detected after initial triage and consultation, of which 51 (sensitivity = 75%) were triaged to one-stop-clinic; positive predictive value was 18.89%. Eight hundred two (specificity = 72.69%) of benign cases were triaged to phone or video clinic initially; negative predictive value was 97.15%. Comparing the study's incidence of cancer (7.8%) to the preceding year's (2019) of 6.8% with Yate's correction shows no significant difference (p < 0.05). CONCLUSION: Triage accuracy is sufficiently robust to diagnose cancer promptly, which should reassure clinicians and decision makers within the cancer networks.