title: Psychometric Properties of the Persian Version of the Quality of Life in Epilepsy Inventory in the Later Life.
abstract: OBJECTIVE
  The reports indicate on the incidence of seizure disorder about 1.5 per cent of the normal elderly population. The Quality of Life in Epilepsy Inventory (QOLIE-31) has been pervasive simple tool to screen seizure in the busy neurophysiological settings and monitoring. It was constructed as self-administered tool in two formats, 89 and 31-items. To the reliability and validity of the QOLIE-31 across older adults in the southwest Iran and discuss its role in the detection of health-related quality of elderly patients with epilepsy.
  
  
  METHODS
  About 73 older adults (mean age = 66.3 ± 1.71) were sampled from the eight hospitals and caring centres. They replied to the QOLIE-31. External and criterion validity was calculated by correlation to the SF-36 questionnaire, to check and validate the epilepsy specific dimensions. The QOLIE-31 includes seven subscales: overall quality of life, seizure worry, emotional well-being, energy/fatigue, cognitive, medication effects, and social function.
  
  
  RESULTS
  There was significant difference within sample groups regarding main variables (p< 0.05). The coefficients of Cronbach's alpha (α= 0.76), convergent validity (0.81), divergent validity (-0.21), external validity with overall score of SF-36 (0.87), and criterion validity (0.78) were estimated, which were significant atp< 0.01. The exploratory factor analysis demonstrated that the QOLIE-31 is organized into six factors, which clarifies 92 per cent of the scale's variance. Second-order confirmatory factor analysis pointed out that the factor is well matched up onto a principal factor. Consequently, the 6-factors model was well appropriate for the data by the fit index techniques for adjusting the scale (AGFI = 0.94, GFI = 0.96, RMSEA = 0.003, IFI = 0.90, NFI = 0.95, CFI = 0.95).
  
  
  CONCLUSIONS
  The results pointed to the well-adjusted reliability and psychometric properties of the QOLIE-31 and its usefulness for the relevant studies as well.
authors.affiliation: Australian Centre for Quality of Life, Deakin University, Melbourne, Australia; Department of Healthy Aging, Shiraz University of Medical Sciences, Shiraz, Iran.
authors.forename: Abdolrahim
authors.initials: A
authors.lastname: Asadollahi
authors.affiliation: Department of Community Health, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Laleh Fani
authors.initials: LF
authors.lastname: Saberi
authors.affiliation: Department of Social Work, University of Applied Science & Technology, Ahwaz, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Havasi
authors.affiliation: Department of Health Promotion, School of Health, Shiraz University of Medical Science, Shiraz, Iran.
authors.forename: Mohammad-Hossein
authors.initials: MH
authors.lastname: Kaveh
keywords: Epilepsy; Iran; Older adults; QOLIE-31; SF-36; Seizure; Validity & reliability