title: Validity of an abbreviated quality of life enjoyment and satisfaction questionnaire (Q-LES-Q-18) for schizophrenia, schizoaffective, and mood disorder patients.
abstract: We sought to identify a core subset of Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q) items that maintains the validity and psychometric properties of the basic version. A parsimonious subset of items from the Q-LES-Q that can accurately predict the basic Q-LES-Q domain mean scores was sought and evaluated in 339 inpatients meeting DSM-IV criteria for schizophrenia, schizoaffective, and mood disorders. Three additional data sets were used for validation. Assessments included Q-LES-Q, Quality of Life Scale, Lancashire Quality of Life Profile, rating scales for psychopathology, medication side effects, and self-reported emotional distress, self-esteem, self-efficacy, and social support. We found that 18-items predicted basic Q-LES-Q domains (physical health, subjective feelings, leisure time activities, social relationships) and general index scores with high accuracy. Q-LES-Q-18 showed high reliability, validity, and stability of test-retest ratings. Thus, Q-LES-Q-18, a brief, self-administered questionnaire may aid in monitoring quality of life outcomes of schizophrenia, schizoaffective, and mood disorder patients.
authors.affiliation: Sha'ar Menashe Mental Health Center, Hadera, Israel. ritsner@shaar-menashe.org.il
authors.forename: Michael
authors.initials: M
authors.lastname: Ritsner
authors.forename: Rena
authors.initials: R
authors.lastname: Kurs
authors.forename: Anatoly
authors.initials: A
authors.lastname: Gibel
authors.forename: Yael
authors.initials: Y
authors.lastname: Ratner
authors.forename: Jean
authors.initials: J
authors.lastname: Endicott
mesh_terms: D000328:Adult; D000339:Affect; D005260:Female; D006801:Humans; D008297:Male; D019964:Mood Disorders / Q000503:physiopathology* / Q000523:psychology; D017060:Patient Satisfaction; D011594:Psychometrics / Q000295:instrumentation*; D011618:Psychotic Disorders / Q000503:physiopathology* / Q000523:psychology; D011788:Quality of Life; D012559:Schizophrenia / Q000503:physiopathology*; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires