title: PatientsLikeMe® Online Epilepsy Community: Patient characteristics and predictors of poor health-related quality of life.
abstract: The online PatientsLikeMe® Epilepsy Community allows patients with epilepsy to record, monitor, and share their demographic, disease, and treatment characteristics, providing valuable insights into patient perceptions and understanding of epilepsy. The objective of this retrospective analysis was to characterize the profile of users and their disease and identify factors predictive of poor health-related quality of life (HRQoL), while assessing the platform's potential in providing patient-reported data for research purposes.
  
  
  
  Data recorded (January 2010-November 2011) by Epilepsy Community members, with an epilepsy diagnosis and who reported >1 seizure, included the following: sociodemographic and disease characteristics, treatments, symptoms, side effects perceived as medication-related, seizure occurrence, and standardized questionnaires (Quality of Life in Epilepsy Inventory [QOLIE-31/P], EuroQoL 5-Dimensions Scale, 3 Levels [EQ-5D-3L], and Hospital Anxiety and Depression Scale [HADS]). Univariate and multivariate logistic regressions were conducted to identify predictors of poor HRQoL.
  
  
  
  During the study period, the Epilepsy Community comprised 3073 patients, of whom 71.5% were female, had a mean age of 37.8years, and had a mean epilepsy duration of 17.7years. The most frequently reported moderate/severe symptoms (n=2135) included memory problems (60.2%), problems concentrating (53.8%), and fatigue (50.0%). Medication-related side effects (n=639) included somnolence (23.2%), fatigue (17.2%), and memory impairment (13.8%). The QOLIE-31/P scores (n=1121) were significantly worse in patients who experienced a recent seizure. For QOLIE-31/P, highly predictive factors for poor HRQoL included the following: mild/moderate problems concentrating, depression, memory problems, treatment side effects, occurrence of tonic-clonic seizures, and epilepsy duration ≤1year. For EQ-5D-3L, highly predictive factors for poor HRQoL included the following: pain, depression, and comorbidities. Patients on newer AEDs were less likely to report poor HRQoL (QOLIE-31/P).
  
  
  
  These findings move further towards supporting the feasibility and usefulness of collecting real-world, anonymized data recorded by patients online. The data provide insights into factors impacting HRQoL, suggesting that a holistic treatment approach beyond seizure control should be considered in epilepsy.
authors.affiliation: UCB Pharma, Brussels, Belgium.
authors.forename: Christine
authors.initials: C
authors.lastname: de la Loge
authors.affiliation: UCB Pharma, Brussels, Belgium.
authors.forename: Svetlana
authors.initials: S
authors.lastname: Dimova
authors.affiliation: UCB Pharma, Monheim, Germany.
authors.forename: Knut
authors.initials: K
authors.lastname: Mueller
authors.affiliation: UCB Pharma, Raleigh, NC, United States.
authors.forename: George
authors.initials: G
authors.lastname: Phillips
authors.affiliation: UCB Pharma, Smyrna, GA, United States.
authors.forename: Tracy L
authors.initials: TL
authors.lastname: Durgin
authors.affiliation: Research and Development, PatientsLikeMe, Inc., Cambridge, MA, United States.
authors.forename: Paul
authors.initials: P
authors.lastname: Wicks
authors.affiliation: UCB Pharma, Slough, United Kingdom. Electronic address: simon.borghs@ucb.com.
authors.forename: Simon
authors.initials: S
authors.lastname: Borghs
mesh_terms: D000328:Adult; D004827:Epilepsy / Q000523:psychology* / Q000628:therapy; D005260:Female; D006304:Health Status; D006801:Humans; D020407:Internet; D008297:Male; D008875:Middle Aged; D011788:Quality of Life; D012189:Retrospective Studies; D012944:Social Support; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Epilepsy; Health-related quality of life; Patient networking sites; Social media