Validation of the Spanish version of the Neurological Disorders Depression Inventory for Epilepsy (NDDI-E).

INTRODUCTION To translate and validate into Spanish (Spain) the screening instrument of major depressive episodes (MDEs), Neurological Disorders Depression Inventory in Epilepsy (NDDI-E), in patients with epilepsy. METHODS A total of 121 outpatients, aged 18 years and older, with a diagnosis of epilepsy were included. The diagnosis of a current major depressive episode (MDE) was established with the Mini International Neuropsychiatric Interview (MINI). RESULTS A diagnosis of current MDE was established in 20% of the patients with the MINI. Receiver operator characteristics (ROC) analysis showed an area under the curve of 0.89, with an internal consistency of 0.78. At a cutoff score >13, 22% of patients were considered to suffer from MDE with the NDDI-E (sensitivity: 84%; specificity: 78%; positive predictive value: 64.7%; and negative predictive value: 92.2%). DISCUSSION The Spanish-Spain version of the NDDI-E appears to be a good screening instrument to identify MDE.