Depression and Anxiety in the Epileptic Patients: the Association With Demographic and Seizure-Related Variables

Heo, Seon Hee; Park, Hyeon Mi

Abstract

BACKGROUND
Depression and anxiety are common psychiatric symptoms in patients with epilepsy, exerting a profound negative effect on health-related quality of life. Several issues, however, pertaining to their association with psychosocial, seizure-related and medication factors, remain controversial. In the present study we have investigated the association of depression and anxiety with various demographic and seizure-related variables in patients with newly-diagnosed and chronic epilepsy.
METHODS
We investigated 80 patients with epilepsy (46.3% males, mean age 36.1+/-11.4 years, range 18~64; mean disease duration, 13.4+/-12.2 years). Depression and anxiety were assessed in the interictal state with the Beck Depression Inventory, 21-item version (BDI-21) and the state and trait subscales of the State-Trait Anxiety Inventory (STAI-S and STAI-T), respectively. The association of depression and anxiety with various variables was investigated using univariate analyses and multiple linear regression analyses.
RESULTS
Duration of epilepsy, the number of side effects and the number of GABAergic anti-epileptic drugs were correlated with depression, together accounting for 25.1% of the variation of the BDI-21. The STAI-S index was significantly associated with occupation status and the number of GABAergic anti-epileptic drugs accounting for 27.4% of the variation of the STAI-S. Finally, the number of side effects was correlated with trait anxiety.
CONCLUSIONS
Our study shows that the duration of epilepsy, occupation status, GABAergic anti-epileptic drugs and the number of side effects are risk factors for the development of depression and/or anxiety.