title: Dimensions Underlying Measures of Disability, Personal Factors, and Health Status in Cervical Radiculopathy: A Cross-Sectional Study.
abstract: This cross-sectional study sought to identify dimensions underlying measures of impairment, disability, personal factors, and health status in patients with cervical radiculopathy. One hundred twenty-four patients with magnetic resonance imaging-verified cervical radiculopathy, attending a neurosurgery clinic in Sweden, participated. Data from clinical tests and questionnaires on disability, personal factors, and health status were used in a principal-component analysis (PCA) with oblique rotation. The PCA supported a 3-component model including 14 variables from clinical tests and questionnaires, accounting for 73% of the cumulative percentage. The first component, pain and disability, explained 56%. The second component, health, fear-avoidance beliefs, kinesiophobia, and self-efficacy, explained 9.2%. The third component including anxiety, depression, and catastrophizing explained 7.6%. The strongest-loading variables of each dimension were "present neck pain intensity," "fear avoidance," and "anxiety." The three underlying dimensions identified and labeled Pain and functioning, Health, beliefs, and kinesiophobia, and Mood state and catastrophizing captured aspects of importance for cervical radiculopathy. Since the variables "present neck pain intensity," "fear avoidance," and "anxiety" had the strongest loading in each of the three dimensions; it may be important to include them in a reduced multidimensional measurement set in cervical radiculopathy.
authors.affiliation: From Division of Physiotherapy, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden (MH, MK, KH-R, AD); Department of Physiotherapy, Karolinska University Hospital, Stockholm, Sweden (MH, MK, KH-R, AD); and Department of Medical and Health Sciences, Physiotherapy, Faculty of Health Sciences, Linköping University, Linköping, Sweden (AP).
authors.forename: Marie
authors.initials: M
authors.lastname: Halvorsen
authors.forename: Marie
authors.initials: M
authors.lastname: Kierkegaard
authors.forename: Karin
authors.initials: K
authors.lastname: Harms-Ringdahl
authors.forename: Anneli
authors.initials: A
authors.lastname: Peolsson
authors.forename: Åsa
authors.initials: Å
authors.lastname: Dedering
mesh_terms: D000328:Adult; D000339:Affect; D000368:Aged; D002574:Cervical Vertebrae; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D006233:Persons with Disabilities / Q000523:psychology*; D005239:Fear; D005260:Female; D006304:Health Status; D006801:Humans; D008297:Male; D008603:Mental Health; D008875:Middle Aged; D010146:Pain / Q000503:physiopathology; D025341:Principal Component Analysis; D011843:Radiculopathy / Q000503:physiopathology* / Q000523:psychology; D020377:Self Efficacy; D013548:Sweden