Factor analyses of an Adult Epilepsy Self-Management Measurement Instrument (AESMMI).
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.
Rollins School of Public Health, Emory University, 1518 Clifton Rd., Atlanta, GA 30322, USA. Electronic address: cescoff@sph.emory.edu.
Cam
C
Escoffery
Rollins School of Public Health, Emory University, 1518 Clifton Rd., Atlanta, GA 30322, USA.
Yvan
Y
Bamps
Rhode Island Hospital, Brown University, 593 Eddy St., Providence, RI 02903, USA.
W Curt
WC
LaFrance
University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029, USA.
Shelley
S
Stoll
University of Texas School of Public Health, 7000 Fannin St., Suite 2668, Houston, TX 77030, USA.
Ross
R
Shegog
The Epilepsy Foundation, 8301 Professional Place, Landover, MD 20785-2353, USA.
Janice
J
Buelow
Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, USA.
Patricia
P
Shafer
Rollins School of Public Health, Emory University, 1518 Clifton Rd., Atlanta, GA 30322, USA.
Nancy J
NJ
Thompson
Rollins School of Public Health, Emory University, 1518 Clifton Rd., Atlanta, GA 30322, USA.
Robin E
RE
McGee
Rollins School of Public Health, Emory University, 1518 Clifton Rd., Atlanta, GA 30322, USA.
Katherine
K
Hatfield
D000223:Adaptation, Psychological; D000328:Adult; D019468:Disease Management; D004827:Epilepsy / Q000523:psychology / Q000628:therapy*; D005163:Factor Analysis, Statistical; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D055118:Medication Adherence / Q000523:psychology; D008875:Middle Aged; D011788:Quality of Life / Q000523:psychology; D015203:Reproducibility of Results; D012648:Self Care / Q000379:methods / Q000523:psychology / Q000592:standards*; D012944:Social Support; D011795:Surveys and Questionnaires / Q000592:standards*
Epilepsy self-management; Instrument; Psychometric testing