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. 2022 Sep 10;29(2):247–252. doi: 10.1016/j.cmi.2022.08.025

Table 2.

Performance of ID NOW compared with RT-PCR (nasopharyngeal or oropharyngeal swab), using oropharyngeal swabs or combined oropharyngeal and nasal swabs for ID NOW testing.

Oropharyngeal swab (OPS) for ID NOW testing
Combined oropharyngeal and nasal swab (O+NS) for ID NOW testing
Assessment centre: Symptomatic
Assessment centre: Symptomatic
RT-PCR RT-PCR
Positive Negative Positive Negative
ID NOW Positive 9833 315 ID NOW Positive 335 18
Negative 800 59 931 Negative 28 3509
Assessment centre: asymptomatic Assessment centre: asymptomatic
RT-PCR RT-PCR
Positive Negative Positive Negative
ID NOW Positive 768 73 ID NOW Positive 35 5
Negative 140 9837 Negative 10 631
Emergency shelters and addiction treatment facilities Emergency shelters and addiction treatment facilities
RT-PCR RT-PCR
Positive Negative Positive Negative
ID NOW Positive 62 8 ID NOW Positive 3 0
Negative 19 1838 Negative 1 187
Hospital
RT-PCR
Positive Negative
ID NOW Positive 2624 97
Negative 308 13 895
Mobile: symptomatic
RT-PCR
Positive Negative
ID NOW Positive 529 22
Negative 72 3601
Mobile: asymptomatic
RT-PCR
Positive Negative
ID NOW Positive 365 78
Negative 129 19 006