1. Epilepsy Behav. 2015 Sep;50:184-9. doi: 10.1016/j.yebeh.2015.07.026. Epub 2015
Aug 8.

Factor analyses of an Adult Epilepsy Self-Management Measurement Instrument

Escoffery C(1), Bamps Y(2), LaFrance WC Jr(3), Stoll S(4), Shegog R(5), Buelow
J(6), Shafer P(7), Thompson NJ(2), McGee RE(2), Hatfield K(2).

Author information: 
(1)Rollins School of Public Health, Emory University, 1518 Clifton Rd., Atlanta, 
GA 30322, USA. Electronic address: cescoff@sph.emory.edu.
(2)Rollins School of Public Health, Emory University, 1518 Clifton Rd., Atlanta, 
GA 30322, USA.
(3)Rhode Island Hospital, Brown University, 593 Eddy St., Providence, RI 02903,
(4)University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029,
(5)University of Texas School of Public Health, 7000 Fannin St., Suite 2668,
Houston, TX 77030, USA.
(6)The Epilepsy Foundation, 8301 Professional Place, Landover, MD 20785-2353,
(7)Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, 

The purpose of this study was to test the psychometric properties of an enhanced 
Adult Epilepsy Self-Management Measurement Instrument (AESMMI). An instrument of 
113 items, covering 10 a priori self-management domains, was generated through a 
multiphase process, based on a review of the literature, validated epilepsy and
other chronic condition self-management scales and expert input. Reliability and 
exploratory factor analyses were conducted on data collected from 422 adults with
epilepsy. The instrument was reduced to 65 items, converging on 11 factors:
Health-care Communication, Coping, Treatment Management, Seizure Tracking, Social
Support, Seizure Response, Wellness, Medication Adherence, Safety, Stress
Management, and Proactivity. Exploratory factors supported the construct validity
for 6 a priori domains, albeit with significant changes in the retained items or 
in their scope and 3 new factors. One a priori domain was split in 2 subscales
pertaining to treatment. The configuration of the 11 factors provides additional 
insight into epilepsy self-management behaviors. Internal consistency reliability
of the 65-item instrument was high (α=.935). Correlations with independent
measures of health status, quality of life, depression, seizure severity, and
life impact of epilepsy further validated the instrument. This instrument shows
potential for use in research and clinical settings and for assessing
intervention outcomes and self-management behaviors in adults with epilepsy.

Copyright © 2015 Elsevier Inc. All rights reserved.

DOI: 10.1016/j.yebeh.2015.07.026 
PMID: 26264465  [Indexed for MEDLINE]