Table 5: Sensitivity, Specificity, Positive Predictive Value (PPV), and
Negative Predictive Value (NPV) Q-SIT using different cutoff point
scores in relation to subjectively reported smell impairment.
Q-SIT |
Sensitivity |
Specificity |
PPV |
NPV |
Abnormal score with cutoff score ≤ 2 |
75.5% |
69.9% |
37.7% |
92% |
Abnormal score with cutoff score ≤ 1 |
69.9% |
96.8% |
84% |
93% |