Table 2 OraQuick HCV Self-Test usability checklist: errors and difficulties
Population group | PWID (n = 90) | MSM/TG (n = 90) | P value | ||
|---|---|---|---|---|---|
Observed errors | No | % | No | % | |
Pre-testing | |||||
 1. Failed to open the package | 0 | 0.0 | 0 | 0.0 | – |
 2. Didn’t read/use the instructions | 3 | 3.3 | 1 | 1.1 | 0.621 |
 3. Didn’t remove the test tube from the test pack | 0 | 0.0 | 0 | 0.0 | – |
 4. Didn’t remove the cap from the test tube | 0 | 0.0 | 1 | 1.1 | 0.316 |
 5. Didn’t place the tube into the stand correctly | 0 | 0.0 | 0 | 0.0 | – |
 6. Didn’t remove the test device from the test pack | 0 | 0.0 | 0 | 0.0 | – |
Testing | |||||
 7. Touched the flat pad | 1 | 1.1 | 5 | 5.6 | 0.211 |
 8. Incorrect procedure to collect oral fluid | 19 | 21.1 | 5 | 5.6 | 0.002 |
 9. Wrong placing of the test device in the test tube | 0 | 0.0 | 1 | 1.1 | 0.316 |
 10. Test device came out of the tube while testing | 0 | 0.0 | 0 | 0.0 | – |
 11. Inadequate time keeping | 7 | 7.8 | 0 | 0.0 | 0.014 |
Errors observed for at least one step | 25 | 27.8 | 15 | 16.7 | 0.073 |
Post-testing | |||||
 12. Interpreted the results incorrectly* | 3 | 3.3 | 1 | 1.1 | 0.621 |
Observed difficulties | |||||
 1. Opening the package | 0 | 0.0 | 6 | 6.7 | 0.013 |
 4. Opening the tube | 4 | 4.4 | 3 | 3.3 | 0.700 |
 5. Placing the tube into the stand | 3 | 3.3 | 1 | 1.1 | 0.621 |
 8. Swabbing the mouth | 4 | 4.4 | 3 | 3.3 | 0.700 |
 9. Placing the device into the tube | 4 | 4.4 | 1 | 1.1 | 0.174 |
 12. Reading the test results | 3 | 3.3 | 1 | 1.1 | 0.621 |
Experienced difficulties for at least one step | 31 | 34.4 | 13 | 14.4 | 0.002 |
Assistance provided | |||||
 1. Opening the package | 1 | 1.1 | 4 | 4.4 | 0.368 |
 4. Opening and removing the cap from the tube | 6 | 6.7 | 1 | 1.1 | 0.118 |
 5. Placing the tube into the stand | 5 | 5.6 | 2 | 2.2 | 0.444 |
 9. Placing the test device into the tube | 0 | 0.0 | 2 | 2.2 | 0.497 |
 11. Reminding the incubation time | 4 | 4.4 | 1 | 1.1 | 0.368 |
 12. Reading the results | 3 | 3.3 | 2 | 2.2 | 1.000 |
Assistance provided for at least one step | 20 | 22.2 | 7 | 7.8 | 0.011 |
All steps completed correctly without assistance and test results reported correctly | 54 | 60.0 | 72 | 80.0 | 0.003 |