Latest naats download1/1/2023 ![]() Estimates ranged from a high of 97.7% (1710 of 1751 ) on day 2 of symptoms to a low of 90.4% (170 of 188 ) on day 11 of symptoms among patients presenting with COVID-19 symptoms. ![]() The diagnostic sensitivity of the SARS-CoV-2 NAAT was 96.2% (17 070 of 17 740 ) among all of the tests performed. Results Of 132 760 eligible patients (66 433 women median age, 57 years ), 17 174 (12.9%) tested positive for SARS-CoV-2 within 14 days of their first NAAT. ![]() Outcome measures were the diagnostic sensitivity and yield of the SARS-CoV-2 NAAT. Main Outcomes and Measures The primary outcome was a positive result from the SARS-CoV-2 NAAT. Patients not tested within 24 hours of arrival and those presenting with a positive result from a test performed in the community were excluded. Objective To evaluate the diagnostic sensitivity of the SARS-CoV-2 nucleic acid amplification test (NAAT) performed within 24 hours of arrival to the emergency department among a nationally representative sample of patients.ĭesign, Setting, and Participants This diagnostic study was conducted at 47 hospitals across 7 provinces in Canada participating in the Canadian COVID-19 Rapid Response Emergency Department Network among consecutive eligible patients presenting to a participating emergency department who were tested for SARS-CoV-2 from March 1, 2020, to December 31, 2021. Importance Early and accurate diagnostic testing for SARS-CoV-2 is essential to initiate appropriate treatment and infection control and prevention measures among patients presenting to the hospital. ![]()
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