title: The psychometric properties of the Perceived Stress Scale-10 among patients with systemic lupus erythematosus.
abstract: Objective Systemic lupus erythematosus (SLE) is a chronic, multisystem autoimmune disease characterized by periods of remission and recurrent flares, which have been associated with stress. Despite the significance of stress in this disease, the Perceived Stress Scale-10 has yet to be psychometrically evaluated in patients with SLE. Methods Exploratory factor analysis was used to examine the structural validity of the Perceived Stress Scale-10 among patients with SLE ( N = 138) receiving medical care at Cedars Sinai Medical Center. Cronbach's coefficient alpha was used to examine internal consistency reliability, and Pearson product-moment correlations were used to examine convergent validity with measures of anxiety, depression, helplessness, and disease activity. Results Exploratory factor analysis provided support for a two-factor structure (comparative fit index = .95; standardized root mean residual = .04; root mean square error of approximation = .08). Internal consistency reliability was good for both factors (α = .84 and .86). Convergent validity was evidenced via significant correlations with measures of anxiety, depression, and helplessness. There were no significant correlations with the measure of disease activity. Conclusion The Perceived Stress Scale-10 can be used to examine perceived stress among patients with SLE.
authors.affiliation: 1 San Diego State University/University of California, San Diego Joint Doctoral Program in Clinical Psychology, USA.
authors.forename: S D
authors.initials: SD
authors.lastname: Mills
authors.affiliation: 2 Department of Psychology, Loma Linda University, Loma Linda, USA.
authors.forename: D
authors.initials: D
authors.lastname: Azizoddin
authors.affiliation: 3 Section of Rheumatology, Department of Medicine, University of the Philippines-Philippine General Hospital, Manila, Philippines.
authors.forename: G Z
authors.initials: GZ
authors.lastname: Racaza
authors.affiliation: 4 Division of Rheumatology, Cedars Sinai Medical Center, Los Angeles, USA.
authors.forename: D J
authors.initials: DJ
authors.lastname: Wallace
authors.affiliation: 4 Division of Rheumatology, Cedars Sinai Medical Center, Los Angeles, USA.
authors.forename: M H
authors.initials: MH
authors.lastname: Weisman
authors.affiliation: 5 Cousins Center for Psychoneuroimmunology, University of California, Los Angeles, USA.
authors.forename: P M
authors.initials: PM
authors.lastname: Nicassio
mesh_terms: D000223:Adaptation, Psychological; D000328:Adult; D017281:Cost of Illness; D003430:Cross-Sectional Studies; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D015141:Los Angeles; D008180:Lupus Erythematosus, Systemic / Q000150:complications / Q000175:diagnosis* / Q000523:psychology; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011594:Psychometrics; D015203:Reproducibility of Results; D013315:Stress, Psychological / Q000175:diagnosis* / Q000209:etiology / Q000523:psychology; D011795:Surveys and Questionnaires
keywords: Psychometrics; stress; systemic lupus erythematosus