Background: Acceptance of disability (AOD) is a key concept in rehabilitation psychology that enhances psychosocial adjustment of individuals with disability. However, the impact of AOD on well-being has never been examined for patients with epilepsy. The present study investigated whether AOD affects quality of life (QOL) in patients with epilepsy in the presence of other multiple aspects of epilepsy based on the biopsychosocial model. Methods: We retrospectively reviewed 151 consecutive patients with epilepsy (77 men, aged 18–74 years) who underwent comprehensive assessment including long-term video-EEG monitoring, neuroimaging studies, and neuropsychological and psychosocial assessment in our epilepsy monitoring unit. Data were obtained from medical records and self-reported questionnaires. The outcome variable was QOL. Predictive variables included demographic characteristics, seizure-related variables (i.e., duration of epilepsy, seizure frequency, and number of antiepileptic drugs), psychological factors (i.e., AOD, depression, and self-stigma), and social factors (i.e., social support and education level). Acceptance of disability was measured by the Adaptation of Disability Scale-Revised (ADS-R), which we translated into Japanese with the original author's approval, and examined its internal consistency reliability. Data were analyzed using four hierarchical multiple regression analysis models. Results: The mean ADS-R score was 80 (range 45–115). The predictors accounted for 42% of the variance in QOL (R2 = 0.45, ΔR2 = 0.42, F[8, 141] = 14.47, p = 0.00). Higher AOD (p < 0.01), higher social support (p < 0.01), and lower depression scores (p = 0.02) were found to contribute significantly to higher overall QOL. Conclusion: The present study revealed AOD as an important psychological concept, in addition to social support and depression as previously reported, to improve the QOL of patients with epilepsy. Acceptance of disability should be incorporated in the intervention to increase QOL of patients with epilepsy.
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