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Measure what matters: counts of hospitalized patients are a better metric for health system capacity planning for a reopening

By Sehj Kashyap, Saurabh Gombar, Steve Yadlowsky, Alison Callahan, Jason Fries, Benjamin A. Pinsky, Nigam Shah

Posted 23 Apr 2020
medRxiv DOI: 10.1101/2020.04.19.20072017

Responding to the COVID-19 pandemic requires accurate forecasting of health system capacity requirements using readily available inputs. We examined whether testing and hospitalization data could help quantify the anticipated burden on the health system given shelter-in-place (SIP) order. We find a marked slowdown in the hospitalization rate within ten days of SIP even as cases continued to rise. We also find a shift towards younger patients in the age distribution of those testing positive for COVID-19 over the four weeks of SIP. The impact of this shift is a divergence between increasing positive case confirmations and slowing new hospitalizations, both of which affects the demand on health systems. Without using local hospitalization rates and the age distribution of positive patients, current models are likely to overestimate the resource burden of COVID-19. It is imperative that health systems start using these data to quantify effects of SIP and aid reopening planning.

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