https://www.sciencedaily.com/releases/2020/08/200824105538.htm

"A spike in hospitalization naturally leads to more deaths, but these deaths may not only come from those who are hospitalized, but also from those who should have been hospitalized but were not," said co-author Anirban Basu, a UW professor of health economics.

Results of the study, published in the Journal of General Internal Medicine, show the impact of ICU bed use remains fairly constant as ICU bed availability changes. These effects are also in line with recent literature estimates for the mortality among COVID-19 patients receiving critical care, that show mortality rates increase as ICUs fill up.