Table 5.

Diagnostic validity of olfactory and taste dysfunction to predict SARS-CoV-2 infection.

Symptom	Sensitivity % (95% CI)	Specificity % (95% CI)	PPV % (95% CI)	NPV % (95% CI)
Olfactory dysfunction	45.0 (37.6−51.5)	93.7 (91.8−95.0)	64.4 (56.0−72.1)	87.1 (84.7−89.2)
Taste dysfunction	41.1 (34.4−46.1)	91.9 (89.8−93.7)	56.2 (48.0−64.2)	86.1 (83.6−88.3)
Concomitant olfactory and taste dysfunction	37.3 (30.7−44.3)	94.3 (92.5−95.9)	62.4 (53.3−70.9)	85.7 (83.2−87.8)

95% CI: 95% confidence interval; NPV: negative predictive value; PPV: positive predictive value.