By Pooja Toshniwal PahariaDec 16 2022Reviewed by Aimee Molineux In a recent study published in Nature, researchers presented a comprehensive report on the estimated impact of the severe acute respiratory syndrome coronavirus 2 pandemic by estimating month-wise excess deaths for the years 2020 and 2021.
The excess COVID-19-associated mortality was calculated as the difference between the all-cause mortality during COVID-19, and that which was expected had the pandemic not occurred. In February 2021, the WHO collaborated with the United Nations social affairs and economic department to form the TAG to assess COVID-19-related deaths. In August of the same year, letters were sent to WHO members for nominating focus points to participate in nation-level consultations.
Data sources for the study included: Data shared routinely with WHO under the agreement and specifically submitted to WHO for the estimation project; data documented by European nations to Eurostat; the human mortality database, and the world mortality dataset. In addition, annual information for the years 2020 and 2021 was retrieved from the national statistics offices of Grenada, Saint Kitts and Nevis, China, Saint Vincent and the Grenadines, Vietnam, and Sri Lanka.
Results The team estimated 15 million excess COVID-19-associated deaths globally, three times higher than the five million deaths documented between 2020 and 2021. The global excess deaths estimated in 2020 and 2021 were 4.5 and 10.4, respectively, with increases of 8.0% and 18% in global deaths, during the corresponding years, compared to deaths expected if the pandemic did not occur.
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