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. 2023 Jul 28;18(7):e0289291. doi: 10.1371/journal.pone.0289291

Table 4. User errors for Standard Q and Panbio kits.

Standard Q (N = 331) Panbio (N = 331)
  Yes No Yes No
Did the participant place the tube on the kit box tray holder or flat surface correctly? 327 (97.6) 8 (2.4) 329 (99.4) 2 (0.6)
Did participant insert the swab into the left nostril to the correct depth (about 1.5cm or 2cm)? 327 (97.6) 8 (2.4) 332 (100) 0 (0.0)
Did the participant rotate the swab 5 or 10 times in the left nostril? 325 (97.0) 10 (3.0) 327 (98.5) 5 (1.5)
Did participant insert the swab into the right nostril to the correct depth (about 1.5cm or 2cm)? 327 (98.5) 5 (1.5) 329 (99.4) 2 (0.6)
Did the participant rotate the swab 5 or 10 times in the right nostril? 324 (97.0) 10 (3.0) 330 (99.4) 2 (0.6)
Did the participant insert the swab into the solution tube correctly? 331 (98.8) 4 (1.2) 328 (99.4) 2 (0.6)
Did the participant swirl in the fluid 5 or 10 times while pushing against the wall of the tube? 325 (97.3) 9 (2.7) 323 (97.6) 8 (2.4)
Did the participant remove the swab slowly while squeezing the sides of the tube to extract the liquid from the swab? 310 (92.5) 25 (7.5) 316 (95.5) 15 (4.5)
Did the participant press the nozzle cap tightly the tube? 326 (97.9) 7 (2.1) 330 (99.7) 1 (0.3)
Did the participant squeeze 4 or 5 drops of liquid from the tube into the well on the test device? 319 (95.5) 15 (4.5) 330 (99.7) 1 (0.3)
Did the participant read the test result in 15 minutes? 333 (99.7) 1 (0.3) 325 (97.9) 7 (2.1)
Did the participant interpret the test result correctly? 328 (98.5)s 2 (1.5) 329 (99.7) 1 (0.3)

Standard Q: swab 10 times, depth 2cm, 4 drops