期刊
BREAST
卷 67, 期 -, 页码 78-88出版社
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.breast.2023.01.001
关键词
Breast cancer; Screening; Diagnosis; Mammography; COVID-19; Pandemic
This systematic review examines the impact of the COVID-19 pandemic on breast cancer screening and diagnosis. The findings show a significant reduction in screening volumes and the number of diagnosed breast cancers during the pandemic, as well as an increase in the proportion of advanced stage cancer at diagnosis.
Background: Breast cancer care has been affected by the COVID-19 pandemic. This systematic review aims to describe the observed pandemic-related changes in clinical and health services outcomes for breast screening and diagnosis.Methods: Seven databases (January 2020-March 2021) were searched to identify studies of breast cancer screening or diagnosis that reported observed outcomes before and related to the pandemic. Findings were presented using a descriptive and narrative approach.Results: Seventy-four studies were included in this systematic review; all compared periods before and after (or fluctuations during) the pandemic. None were assessed as being at low risk of bias. A reduction in screening volumes during the pandemic was found with over half of studies reporting reductions of >= 49%. A majority (66%) of studies reported reductions of >= 25% in the number of breast cancer diagnoses, and there was a higher proportion of symptomatic than screen-detected cancers. The distribution of cancer stage at diagnosis during the pandemic showed lower proportions of early-stage (stage 0-1/I-II, or Tis and T1) and higher proportions of relatively more advanced cases than that in the pre-pandemic period, however population rates were generally not reported.Conclusions: Evidence of substantial reductions in screening volume and number of diagnosed breast cancers, and higher proportions of advanced stage cancer at diagnosis were found during the pandemic. However, these findings reflect short term outcomes, and higher-quality research examining the long-term impact of the pandemic is needed.
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