Table 3 Sensitivity, specificity and positive and negative predictive values for each of the diagnoses migraine, tension-type headache and migraine plus tension-type headache
From: Validation of a Georgian language headache questionnaire in a population-based sample
Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | |
|---|---|---|---|---|
Migraine | 0.75 (0.64–0.86) | 0.96 (0.92–0.99) | 0.89 (0.81–0.98) | 0.89 (0.84–0.94) |
Tension-type headache | 0.79 (0.70–0.88) | 0.86 (0.80–0.93) | 0.8 (0.71–0.89) | 0.85 (0.79–0.92) |
Migraine plus tension-type headache | 0.62 (0.45–0.78) | 0.84 (0.78–0.90) | 0.47 (0.32–0.61) | 0.91 (0.86–0.96) |