Table 3 shows the types of health conditions and contributing causes mentioned in conjunction with deaths involving coronavirus disease 2019 (COVID-19). For 6% of the deaths, COVID-19 was the only cause mentioned. For deaths with conditions or causes in addition to COVID-19, on average, there were 2.6 additional conditions or causes per death.
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https://fox8.com/news/coronavirus/new-cdc-report-shows-94-of-covid-19-deaths-in-us-had-underlying-medical-conditions/