Validation of the work functioning assessment for epilepsy - An ICF-based instrument for measuring work functioning of individuals with epilepsy.

ObjectiveTo validate the Work Functioning Assessment for Epilepsy.DesignMethodological and cross-sectional research in which the Work Functioning Assessment for Epilepsy was applied to a sample of individuals with epilepsy.SettingThe field test was conducted through in-person and online interviews with individuals treated in public and private services in two epilepsy outpatient clinics.Participants120 individuals with epilepsy.Main measuresExploratory Factor Analysis, Confirmatory Factor Analysis, Cronbach's alpha coefficient analysis, and Pearson's linear correlation coefficient were used to measure the validity and reliability of the instrument.ResultsThe Work Functioning Assessment for Epilepsy final version contains 30 items divided into two dimensions. The Exploratory Factor Analysis and Confirmatory Factor Analysis confirmed the plausibility of the factor structure established. The Cronbach's alpha (95% IC) coefficient was 0.94 and there was a significative linear correlation (p-value: <0.001) between the Work Functioning Assessment for Epilepsy, WHO Disability Assessment Schedule -12 items, and Seizure Severity Questionnaire scores.ConclusionsThe Work Functioning Assessment for Epilepsy is a brief, valid and reliable tool for measuring the work functioning of individuals with epilepsy and has the potential to be a basis for a unified system of work functioning assessment to be used throughout Brazil and translated and adapted for other countries and cultures.