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

Aleksandar J Ristić; Jelena Pjevalica; Goran Trajković; Aleksandra Parojčić; Ana Mihajlović; Nikola Vojvodić; Vladimir Baščarević; Tamara Popović; Slavko Janković; Dragoslav Sokić

doi:10.1016/j.yebeh.2016.01.017

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

Epilepsy Behav. 2016 Apr;57(Pt A):1-4. doi: 10.1016/j.yebeh.2016.01.017. Epub 2016 Feb 19.

Affiliations

¹ Neurology Clinic, Clinical Center of Serbia, University of Belgrade, Serbia. Electronic address: aristic@eunet.rs.
² Medical School, University of Belgrade, Serbia.
³ Institute of Medical Statistics and Informatics, Medical School, University of Belgrade, Serbia.
⁴ Neurology Clinic, Clinical Center of Serbia, University of Belgrade, Serbia.
⁵ Hospital for Cerebrovascular Diseases Sveti Sava, Belgrade, Serbia.
⁶ Neurosurgery Clinic, Clinical Center of Serbia, University of Belgrade, Serbia.

PMID: 26900772
DOI: 10.1016/j.yebeh.2016.01.017

Abstract

The Neurological Disorders Depression Inventory for Epilepsy (NDDI-E) was developed and proven efficient for the rapid detection of a major depressive episode in people with epilepsy. This study describes the development, validation, and psychometric properties of the NDDI-E Serbian version. A consecutive sample of 103 patients with epilepsy was assessed using the Beck Depression Inventory (BDI) and the NDDI-E. All patients had no major difficulties in understanding or answering the questions of the Serbian version. Cronbach's alpha coefficient was 0.763. Receiver operating characteristic analysis showed an area under the curve of 0.943 (95% CI; 0.826 to 0.951), a cutoff score of ≥14, a sensitivity of 72.2%, a specificity of 95.2%, a positive predictive value of 81.3%, and a negative predictive value of 94.3%. The NDDI-E Serbian version scores were significantly and positively correlated with those of the BDI (p<0.001). The NDDI-E Serbian version constitutes a concise and consistent depression screening instrument for patients with epilepsy.

Keywords: Depression; Epilepsy; NDDI-E; Screening instrument; Serbian version.

MeSH terms

Adult
Depression / complications
Depression / diagnosis*
Depressive Disorder, Major / complications
Depressive Disorder, Major / diagnosis*
Epilepsy / complications*
Epilepsy / diagnosis
Female
Humans
Male
Mass Screening
Middle Aged
Personality Inventory
Psychiatric Status Rating Scales / standards*
Psychometrics / methods
ROC Curve
Reproducibility of Results
Sensitivity and Specificity
Serbia
Translating