BMJ: New Crown Epidemic Burden Study in California and Washington State

Researchers recently examined the epidemiology and burden of disease during the first wave of the 2019 coronavirus epidemic on the West Coast of the United Statesstudy collected data on outbreaks of new corona pneumonia in Northern California, Southern California and Washington state, and as of April 22, 2020, 1,840 of the 959,321 health insurance participants were admitted to the hospital for the first time with a confirmed covid-19Data on 1,328 people (534 in Northern California, 711 in Southern California and 83 in Washington) were analyzedThe main endpoints of the study were the cumulative incidence of confirmed covid-19 first acute hospitalization, intensive care unit (ICU) rates and mortality, hospitalization time and ICU hospitalizationas of April 22, 2020, there were 15.6 hospitalizations per 100,000 people in Northern California, 23.3 admissions per 100,000 population in Southern California and 14.7 admissions per 100,000 population in WashingtonThe median hospitalization time for survivors was estimated at 9.3 days and the median hospitalization time for the dead patients was 12.7 daysThe adjusted ICU rate was 48.5% for male patients and 32.0% for female patientsFor patients in critical condition, the median hospital stay in the ICU is 10.6 daysThe adjusted mortality rate for male inpatients was 23.5%, among female hospitalized patients was 14.9%, and the mortality risk of both male and female patients increased with agestudy concluded that in the early stages of the outbreak, in Northern, Southern California and Washington state, new coronary pneumonia patients had higher ICU admissions, long-term hospitalizations and mortality rates, and the incidence of new hospitalizations had stabilized or decreased as social isolation interventions were implemented