Abstract

BackgroundThe COVID-19 pandemic has significantly impacted global health and prompted studies on its effects across various diseases. Recent data suggest a potential correlation between COVID-19 and a decrease in lung cancer incidence. This study examines the association between COVID-19 infection and changes in lung cancer cases. Material and methodsWe conducted a retrospective analysis of medical records from Clinic Lüdenscheid, Germany, from January 1, 2018, to December 31, 2021, comparing lung cancer cases before and during the pandemic. Demographic characteristics and cancer stages were also assessed. ResultsWe evaluated 523 patients; 269 pre-COVID and 254 during COVID. While the overall number of cases declined, a significant increase in advanced stage cancers was noted during COVID (P = 0.04). The adjusted incidence rates showed a nuanced decrease from approximately 33 cases per 100,000 pre-COVID to 31 during COVID. ConclusionThis retrospective study suggests a modest decline in lung cancer incidence and an increase in advanced stages during COVID. Further comparisons with national data indicate a similar trend across Germany, with a decrease of about 3 % in lung cancer diagnoses post-2020, highlighting potential pandemic impacts on cancer detection.

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