CEC-UW Cohort Definition

CEC-UW defines a “COVID case” as any patient seen in any of the 21 selected health systems from February 1 to December 31, 2021, who meet at least one of the following three criteria:

Doctor takes a swab sample from a potential COVID patient

  • A positive COVID PCR test and/or
  • An ICD-10 diagnostic code for COVID and/or
  • A positive COVID antibody test

The cohort includes all healthcare system patients, including inpatients, outpatients, emergency care, urgent care, telehealth visits, and COVID testing sites.

CEC-UW Essentials

600,000 COVID patients

21 health systems

Examine Discreet EHR Data