Decreased public pursuit of cancer-related information during the COVID-19 pandemic in the United States

BACKGROUND: In response to the prioritization of healthcare resources towards the COVID-19 pandemic, routine cancer screening and diagnostic have been disrupted, potentially explaining the apparent COVID-era decline in cancer cases and mortality. In this study, we identified temporal trends in public interest in cancer-related health information using the nowcasting tool Google Trends. METHODS: We used Google Trends to query search terms related to cancer types for short-term (September 2019–September 2020) and long-term (September 2016–September 2020) trends in the US. We compared average relative search volumes (RSV) for specified time ranges to detect recent and seasonal variation. RESULTS: General search interest declined for all cancer types beginning in March 2020, with changes in search interest for “Breast cancer,” “Colorectal cancer,” and “Melanoma” of − 30.6%, − 28.2%, and − 26.7%, respectively, and compared with the mean RSV of the two previous months. In the same time range, search interest for “Telemedicine” has increased by + 907.1% and has reached a 4-year peak with a sustained increased level of search interest. Absolute cancer mortality has declined and is presently at a 4-year low; however, search interest in cancer has been recuperating since July 2020. CONCLUSION: We observed a marked decline in searches for cancer-related health information that mirrors the reduction in new cancer diagnoses and cancer mortality during the COVID-19 pandemic. Health professions need to be prepared for the coming demand for cancer-related healthcare, foreshadowed by recovering interest in cancer-related information on Google Trends. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s10552-021-01409-1.