Using Hospital Anxiety and Depression Scale (HADS) on patients with epilepsy: Confirmatory factor analysis and Rasch models

People with epilepsy are in high risk of having mood disorders: up to 55% of people with refractory epilepsy may have depression [1,2]. A study even found that the prevalence of people with refractory temporal lobe epilepsy having psychiatric disorders up to 70% [3]. Due to the high prevalence of mood disorders, people with epilepsy showed a higher suicide rate (12%) than the general population (∼1%) [4]. As a result, measuring the mood disorder in terms of anxiety and depression is a critical topic for clinicians [5].

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