title: Reliability and procedural validity of UM-CIDI DSM-III-R phobic disorders.
abstract: We evaluate the long-term test-retest reliability and procedural validity of phobia diagnoses in the UM-CIDI, the version of the Composite International Diagnostic Interview, used in the US National Co-morbidity Survey (NCS) and a number of other ongoing large-scale epidemiological surveys. Test-retest reliabilities of lifetime diagnoses of simple phobia, social phobia, and agoraphobia over a period between 16 and 34 months were K = 0.46, 0.47, and 0.63, respectively. Concordances with the Structured Clinical Interview for DSM-III-R (SCID) were K = 0.45, 0.62, and 0.63, respectively. Diagnostic discrepancies with the SCID were due to the UM-CIDI under-diagnosing. Post hoc analysis demonstrated that modification of UM-CIDI coding rules could dramatically improve cross-sectional procedural validity for both simple phobia (K = 0.57) and social phobia (K = 0.95). Based on these results, it seems likely that future modification of CIDI questions and coding rules could lead to substantial improvements in diagnostic validity.
authors.affiliation: Max-Planck-Institut für Psychiatrie Klinisches Institut, Munich, Germany.
authors.forename: H U
authors.initials: HU
authors.lastname: Wittchen
authors.forename: S
authors.initials: S
authors.lastname: Zhao
authors.forename: J M
authors.initials: JM
authors.lastname: Abelson
authors.forename: J L
authors.initials: JL
authors.lastname: Abelson
authors.forename: R C
authors.initials: RC
authors.lastname: Kessler
mesh_terms: D000293:Adolescent; D000328:Adult; D000379:Agoraphobia / Q000175:diagnosis / Q000453:epidemiology; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D007407:Interviews as Topic / Q000592:standards*; D008297:Male; D008875:Middle Aged; D010698:Phobic Disorders / Q000145:classification / Q000175:diagnosis* / Q000453:epidemiology; D015203:Reproducibility of Results; D012494:Sampling Studies; D012680:Sensitivity and Specificity; D014481:United States / Q000453:epidemiology