COVID-19 De-Identified Data Cohort Cleaning and Standardization
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Questions and Answers

What was included in the COVID-19 'associated' cohort?

  • Patients with a diagnosis code of possible exposure or infection of COVID-19 (correct)
  • Patients with a history of influenza
  • Patients with a history of common cold
  • Patients with no recent medical history

    • What was used to identify and remove duplicate records from the data?

  • Random selection of records
  • A multipoint-match algorithm (correct)
  • Manual inspection of each record
  • Sorting the records by date

    • What time period was considered for including medical information of patients?

  • Since January 1, 2018
  • Since January 1, 2010
  • Since January 1, 2015 (correct)
  • Since January 1, 2020

    • What is the name given to the more specific subcohort which includes patients with a recent positive lab result for COVID-19 infection?

    <p>COVID-19 'positive' cohort</p> Signup and view all the answers

    What was used to standardize records across disparate EHR coding systems?

    <p>Rigorous cleaning and standardization process</p> Signup and view all the answers

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