Alliance for Pandemic Preparedness
April 16, 2020
Incidence, clinical outcomes, and transmission dynamics of hospitalized 2019 coronavirus disease among 9,596,321 individuals residing in California and Washington, United States: a prospective cohort study
Category: Article Summary
Topic: Clinical Characteristics and Health Care Setting
- This study of 1,277 hospitalized, COVID-19 patients who resided in CA or WA and had Kaiser Permanente insurance identified these key characteristics: (1) older and male patients were more likely than younger or female patients to be admitted to the ICU and to die, (2) an 11-day average duration of stay for hospitalized patients and (3) a 14-day average duration of stay among non-survivors.
- The authors also looked at transmission dynamics and found that the effective reproduction number (RE) declined in conjunction with implementation of non-pharmaceutical interventions.
- Estimates of cumulative infection suggest that the western U.S. remains far from reaching a herd immunity threshold, and that hospitals should continue to ensure capacity to manage COVID-19 cases in a manner than is responsive to changes in social distancing or other pandemic-mitigating measures.
Lewnard et al. (Apr 16, 2020). Incidence, clinical outcomes, and transmission dynamics of hospitalized 2019 coronavirus disease among 9,596,321 individuals residing in California and Washington, United States: a prospective cohort study. Pre-print downloaded Apr 16 from https://doi.org/10.1101/2020.04.12.20062943