Table 2. Sensitivity, specificity, positive and negative predictive value, positive and negative likelihood ratio and kappa coefficient of the EMMA (Estudo de Mortalidade e Morbidade do Acidente Vascular Cerebral) questionnaire (*) for stroke diagnosis using clinical interview with a board certified neurologist as a gold standard.
| Stroke (neurological evaluation) | Total | |||
|---|---|---|---|---|
| Yes | No | |||
| EMMA Questionnaire (*) | Yes | 13 | 1 | 14 |
| No | 5 | 17 | 22 | |
| Total | 18 | 18 | 36 | |
Sensitivity = 72.2%, Specificity = 94.4%, Positive Predictive Value = 92.9%, Negative Predictive Value = 77.3%, Accuracy = 83.3%, Positive Likelihood Ratio = 12.9, Negative Likelihood Ratio = 0.29, kappa = 0.67.
(*)
Portuguese version of the Memo Study (reference # 23). See annex 2.