title: Identification of anxiety sensitivity classes and clinical cut-scores in a sample of adult smokers: results from a factor mixture model.
abstract: Anxiety sensitivity (AS), a multidimensional construct, has been implicated in the development and maintenance of anxiety and related disorders. Recent evidence suggests that AS is a dimensional-categorical construct within individuals. Factor mixture modeling was conducted in a sample of 579 adult smokers (M age=36.87 years, SD=13.47) to examine the underlying structure. Participants completed the Anxiety Sensitivity Index-3 and were also given a Structured Clinical Interview for DSM-IV-TR. Three classes of individuals emerged, a high AS (5.2% of the sample), a moderate AS (19.0%), and a normative AS class (75.8%). A cut-score of 23 to identify high AS individuals, and a cut-score of 17 to identify moderate-to-high AS individuals were supported in this study. In addition, the odds of having a concurrent anxiety disorder (controlling for other Axis I disorders) were the highest in the high AS class and the lowest in the normative AS class.
authors.affiliation: Department of Psychology, Florida State University, Tallahasssee, FL 32306-4301, USA. Electronic address: allan@psy.fsu.edu.
authors.forename: Nicholas P
authors.initials: NP
authors.lastname: Allan
authors.affiliation: Department of Psychology, Florida State University, Tallahasssee, FL 32306-4301, USA.
authors.forename: Amanda M
authors.initials: AM
authors.lastname: Raines
authors.affiliation: Department of Psychology, Florida State University, Tallahasssee, FL 32306-4301, USA.
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Capron
authors.affiliation: Department of Psychology, Florida State University, Tallahasssee, FL 32306-4301, USA.
authors.forename: Aaron M
authors.initials: AM
authors.lastname: Norr
authors.affiliation: Department of Psychology, University of Houston, Houston, TX 77004, USA.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Zvolensky
authors.affiliation: Department of Psychology, Florida State University, Tallahasssee, FL 32306-4301, USA. Electronic address: schmidt@psy.fsu.edu.
authors.forename: Norman B
authors.initials: NB
authors.lastname: Schmidt
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D001007:Anxiety / Q000523:psychology*; D001008:Anxiety Disorders / Q000145:classification / Q000175:diagnosis*; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005239:Fear; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012372:ROC Curve; D057566:Self Report; D012907:Smoking / Q000523:psychology*; D016540:Smoking Cessation; D055815:Young Adult
keywords: Anxiety disorders; Anxiety sensitivity; Clinical cut-score; Factor mixture modeling