The Spanish Version of the Quality‐of‐Life in Epilepsy Inventory (QOLIE‐31): Translation, Validity, and Reliability

Abstract

Summary:Purpose: Spanish adaptation of the Quality of Life in Epilepsy Inventory .Methods: Internal consistency and construct validity of the Spanish translation of the QOLIE-31 were tested in 252 patients with epilepsy. Patients also were administered the General Health Questionnaire (GHQ-28), and the Nottingham Health Profile (NHP). Two weeks after the first test, a subgroup of randomly selected patients were readministered the QOLIE-31 along with a new five-optiori question about change in health status. Patients reporting no change in health status were included in the study of temporal stability. Sensitivity to clinical change was assessed in 31 additional patients who had successfully undergone epilepsy surgery.Results: The QOLIE-31 was highly correlated with the GHQ-28 ( r = -0.63) and the NHP ( r = -0.69), demonstrating construct validity. Cronbach's alpha coefficient was 0.92, showing the items of the QOLIE-31 to be interdependent and homogeneous. For a 2-week test retest, both Pearson productmoment correlation and intraclass correlation coefficients were 0.90, indicating temporal stability. Sensitivity to clinical change was suggested by a significant mean difference between the global scores both before and after epilepsy surgery (-21 27, p i 0.0001 ; 95% CI, -28.08 to -15.66). The standardized response mean of the global score was 1.67, and the effect size was 1.35, both indicating large clinical change as a result of seizure relief.Conclusions: The similarity of psychometric properties between the English and the Spanish versions of the QOLIE-3

The Effect of Therapy Psychodynamic and Cognitive Behavioral Therapy on Quality of Life in Patients with PNES

“…The results are converted to a scale from 0 to 100 [11]. Values below 40 reflected a self-perceived poor quality of life, between 41 and 60 a good quality of life and above 61 an excellent quality of life [12].…”

Changes in Quality of Life in Epilepsy: How Large Must They Be to Be Real?

“…We also analyzed the QOLIE-31, derived from QOLIE-89. QOLIE-31 has shown adequate internal consistency (16) and responsiveness (5,6). Although the "Percept" subscale of the seizure severity scale has low internal consistency (17) and it is used less frequently, we included it in this analysis because it has been previously used to assess change (3) and because responsiveness and reliable change are not strongly dependent on internal consistency (17).…”

“…Estimates followed for the Epilepsy Surgery Inventory, Washington Psychosocial Inventory, and Symptom Checklist-90R (3,4). More recently, indices of responsiveness were described for the Quality of Life in Epilepsy Inventories-89 and -31 (QOLIE-89 and QOLIE-31) and the Rand Short Form-36 (SF-36) (5,6) and for the Quality of Life Assessment Schedule, the ESI-55, and the generic health utility instrument EQ-5D (7).…”

Validity and Reliability of the Quality of Life in Epilepsy Inventory (QOLIE-10) For Turkey

“…QOLIE-10 comprises three components: Epilepsy Effects (memory, physical effects, and mental effects of medication), Mental Health (energy, depression, overall QOL), and Role Functioning (seizure worry, work, driving, social limits) (18). Thus, QOLIE-10 has ten items drawn from seven QOLIE-31 subscales (15,16,17,18,19,20,21).…”

“…The validity and reliability of the QOLIE-89 inventory (12) and QOLIE-31 inventory (4) for Turkish patients were determined by Mollaoğlu et al (9) QO-LIE-10 was derived from QOLIE-31 (11,13,17). QOLIE-10 comprises three components: Epilepsy Effects (memory, physical effects, and mental effects of medication), Mental Health (energy, depression, overall QOL), and Role Functioning (seizure worry, work, driving, social limits) (18).…”