Explore demographics and COVID factors associated with patients within the Enclave. Gain a general overview of all patients or target a specific cohort by associated comorbidities, vaccination/COVID status, etc
Sample: All patients in the N3C Data Enclave. For additional information, see limitations below.
For all visualizations, a COVID-positive patient is defined as any patient having one of the following within their EHR records:
• Severity of COVID-19 is a calculation based on multiple events recorded in a patientâs EHR during their medical visit. The severity score for each patient may be inaccurate due to missing information within the EHR. A patient will only be graded on Severity if they have a laboratory-confirmed positive PCR or Antigen test. Below are the definitions of each Severity Category.
• Comorbidities for each patient are linked to EHR medical visits coded for any of the 17 different conditions defined by the Charlson Comorbidity Index. A patient may have undiagnosed conditions which would not be recorded in their EHR and therefore would not be represented here. A patient may also have one of these conditions for which they have not required a medical visit and that would not be represented here.
• Vaccination data shown here is coming from EHR-recorded vaccination events at the sites which deposit data to N3C. If a patient was vaccinated at their local pharmacy, doctor's office, or state/federal vaccination site, that data will not be included here because these systems do not automatically link to a patient's EHR. Given that most vaccination events are not occurring at N3C sites, patients shown here as "Unknown" may be vaccinated, however, we do not have the records to verify this.
Vaccinated patient counts shown here does not mean the patient is fully vaccinated. We consider a vaccinated patient to have at least one dose of Pfizer, Moderna, or Johnson & Johnson COVID-19 vaccines. Given that Pfizer and Moderna require 2 vaccine doses to be considered fully vaccinated, patients shown here may be partially vaccinated. This same assumption applies to booster shots as we do not consider shots beyond the first one recorded within the patient's EHR.