High spirituality may be associated with right hemispheric lateralization in Korean adults living with epilepsy

Purpose Although it is known that epilepsy and spirituality are related, spirituality in epilepsy has received relatively little clinical and scientific attention. Therefore, we investigated which epilepsy-related factors are associated with high spirituality in Korean adults living with epilepsy. Methods This cross-sectional study was conducted in two university hospitals in Korea. Spirituality was assessed using the 6-item Spirituality Self-Rating Scale (SSRS). The participants were categorized into high and low spirituality groups according to the median SSRS score. The presumptive seizure onset zone was determined based on the clinical semiology, electroencephalography, and magnetic resonance imaging findings. Results Of the 180 participants, 61.7% declared that they had a religious affiliation. The median SSRS score was 15 (interquartile range: 7, 22). The high spirituality subgroup consisted of 92 (51.1%) participants. In the univariate analyses, the high spirituality group was significantly associated with female sex (p < 0.05), older age (p < 0.01), longer epilepsy duration (p < 0.05), polytherapy (p < 0.05), complex partial seizure (p < 0.05), levetiracetam or topiramate usage (p < 0.05), and a right-lateralized seizure onset zone. The multiple logistic regression analysis identified right hemispheric lateralization as the only independent factor associated with high spirituality (odds ratio: 2.410, 95% confidence interval: 1.051–5.528, p < 0.05). Conclusions High spirituality may be associated with right hemispheric lateralization but not with the temporal localization of the seizure onset zone in Korean adults with epilepsy.