Table 1 Overview of possible sampling combinations in self-testing and self-sampling studies.

From: Comparing SARS-CoV-2 antigen-detection rapid diagnostic tests for COVID-19 self-testing/self-sampling with molecular and professional-use tests: a systematic review and meta-analysis

Sample type self-testing/sampling

Ag-RDT

Sample type RT-PCR

n datasets (%)

Sample type professional

Ag-RDT

n datasets (%)

AN

NP/OP

11 (17%)

 

NP

15 (23%)

NP

4 (57%)

AN

15 (23%)

AN

2 (29%)

OP

7 (11%)

OP

1 (14%)

OP/nasal

2 (3%)

 

AN/saliva

saliva

1 (2%)

 

OP/nasal

OP/nasal

3 (5%)

 

NP

2 (3%)

 

NP/OP

1 (2%)

 

OP

NP

1 (2%)

 

Saliva

Saliva

2 (3%)

 

NP

3 (5%)

 

NP/OP

1 (2%)

 
  1. Percentages might not add up to 100% as they are rounded.
  2. AN Anterior nasal, OP Oropharyngeal, NP Nasopharyngeal, Ag-RDT Antigen detection rapid diagnostic test, RT-PCR Reverse transcription polymerase chain reaction; In one study, RT-PCR sample type was unclear.