Table 2.
Performance of the GenBody coronavirus disease 2019 rapid antigen based on antigen operator.
| Non-laboratory staff (95% CI) | Laboratory professionals (95% CI) | Total (95% CI) | |
|---|---|---|---|
| Sensitivity | 79.92% (77.26%–82.39%) | 79.80% (74.78%–84.22%) | 79.89% (77.58%–82.06%) |
| Specificity | 99.23% (98.73%–99.57%) | 99.99% (99.94%–100.00%) | 99.85% (99.76%–99.91%) |
| PLR | 103.25 (62.31–171.11) | 6983.92 (983.03–49617.00) | 533.77 (326.87–871.63) |
| NLR | 0.2 (0.18–0.23) | 0.2 (0.16–0.25) | 0.2 (0.18–0.22) |
| Diagnostic odds ratio | 510.18 (299.81–868.18) | 34566.45 (4770.30–250474.46) | 2650.26 (1592.81–4409.74) |
| Prevalence | 33.49% (31.78%–35.24%) | 3.28% (2.92%–3.67%) | 10.64% (10.09%–11.21%) |
| PPV | 98.11% (96.91%–98.85%) | 99.58% (97.09%–99.94%) | 98.45% (97.50%–99.05%) |
| NPV | 90.75% (89.64%–91.75%) | 99.32% (99.15%–99.46%) | 97.66% (97.39%–97.90%) |
| Accuracy | 92.76% (91.76%–93.67%) | 99.33% (99.13%–99.48%) | 97.73% (97.44%–97.99%) |
CI = confidence interval, NLR = negative likelihood ratio, NPV = negative predictive value, PLR = positive likelihood ratio, PPV = positive predictive value.