title: Validity of Hamilton Depression Inventory in Parkinson's disease.
abstract: Studies investigating the assessment of depression in Parkinson's disease (PD) are limited. We examined the concurrent validity and the internal consistency of the Hamilton Depression Inventory (HDI) and compared it to the Hamilton and Geriatric Depression Scales. PD patients (n = 79) were recruited from neurology clinics. Diagnosis of depressive disorder was made according to DSM-IV criteria. Receiver operating characteristic curves were used to calculate sensitivity, specificity, and positive and negative predictive values. The HDI exhibited an optimal cutoff for discriminating between depressed and nondepressed PD patients of 13.5/14.0 and is a valid instrument to use in the setting of PD.
authors.affiliation: School of Medicine, University of Queensland, Brisbane, Australia.
authors.forename: Nadeeka N W
authors.initials: NN
authors.lastname: Dissanayaka
authors.forename: Anna
authors.initials: A
authors.lastname: Sellbach
authors.forename: Sally
authors.initials: S
authors.lastname: Matheson
authors.forename: Rodney
authors.initials: R
authors.lastname: Marsh
authors.forename: Peter A
authors.initials: PA
authors.lastname: Silburn
authors.forename: John D
authors.initials: JD
authors.lastname: O'Sullivan
authors.forename: Gerard J
authors.initials: GJ
authors.lastname: Byrne
authors.forename: George D
authors.initials: GD
authors.lastname: Mellick
mesh_terms: D000368:Aged; D003863:Depression / Q000175:diagnosis* / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000150:complications*; D010555:Personality Inventory; D011569:Psychiatric Status Rating Scales; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity