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Table 1 Demographic characteristics of 49 patients with discordant swab results for COVID-19

From: False negative rate of COVID-19 PCR testing: a discordant testing analysis

Variable   %
Age (years)   
 Median 72  
 Range 25–97  
Sex   
 Male 15 30.6
 Female 34 69.4
Exposure to a known case   
 Yes 38 77.6
Acquisition   
 Health care 9 18.4
 Community 38 77.6
 Unknown 2 4.0
Healthcare worker 7 14.3
Hospitalization 13 26.5
Travel history 4 8.2