Sensitivity, specificity and accuracy of taste or smell alteration in the prediction of COVID-19
| Author | Taste/smell (case) | Taste/smell (control) | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) |
| Roland | 66% (95/145) | 27% (42/157) | 65 (57.4–72.8) | 73.2 (65.8–79.6) | 69.3 (61.1–76.5) | 69.7 (62.3–76.4) | 69.5 (64.1–74.5) |
| Yan-1 | 71%* (42/59) | 17%* (35/203) | 71 (58–81.3) | 82.8 (76.9–87.4) | 54.5 (43.4–65.3) | 90.8 (85.7–94.2) | 80.2 (74.9–84.5) |
| Beltrán-Corbellini | 39% (31/79) | 13% (5/40) | 39 (29.1–50.4) | 87.5 (73.3–94.7) | 86.1 (70.7–94.1) | 42.2 (32–53) | 55.5 (46.5–64.1) |
| Moein | 35% (21/60) | 0% (0/60) | 35 (24.1–47.8) | 99.2 (88.2–99.9) | 97.7 (72.3–99.9) | 60.6 (50.7–69.7) | 67.5 (58.6–75.3) |
| Clemency | 49% (110/225) | 15% (108/736) | 48.9 (42.4–55.4) | 85.3 (88.2–87.7) | 50.5 (43.9–57.0) | 84.5 (81.7–86.9) | 76.8 (74–79.4) |
| Menni | 65% (4668/7178) | 22% (2436/11223) | 65 (63.9–66.1) | 78.3 (77.5–79) | 65.7 (64.6–66.8) | 77.8 (77–78.5) | 73.1 (72.5–73.8) |
| Meta-analysis | – | – | 54.8 (44.3–64.9) | 81.7 (76.5–85.9) | 65.2 (55.9–73.4) | 73.9 (64.3–81.6) | 71.8 (67.5–75.7) |
References are shown in the online supplementary materials.
Variables in bold are the results of meta-analysis.
*Using data on taste alteration.
NPV, negative predictive value; PPV, positive predictive value.