title: [Validation of the Spanish versions of the Montgomery-Asberg depression and Hamilton anxiety rating scales].
abstract: BACKGROUND
  Affective and anxiety disorders (AfD & AnD) are the most common psychiatric diseases in the general population. This study's aim was to assess for the first time the psychometric properties of the Spanish translated versions of the Montgomery-Asberg Depression Rating Scale (MADRS) and the Hamilton Anxiety Rating Scale (HARS), which are widely used both in medical care and clinical research.
  
  
  METHODS
  A cohort, observational, prospective and multicentre study was conducted in clinically stable or unstable patients with AfD and AnD. The scales were administered at baseline and in a second study visit one week or 2 months later (to stable or unstable patients, respectively). The internal consistency, temporary stability, inter-raters reliability, factorial structure, convergent and discriminant validity, and sensitivity to change were all assessed for both scales.
  
  
  RESULTS
  One hundred and eight AfD patients and 106 AnD patients were recruited in 10 psychiatry care centres from a wide geographical distribution. Both scales showed adequate properties in terms of: a) discriminant validity (MADRS/HARS-Clinical Global Impression: p < 0.001); b) convergent validity (MADRS-Hamilton Depression Rating Scale: p < 0.05 and 0.01; MADRS/HARS-EuroQoL 5D: p < 0.05; HARS-State Trait Anxiety Inventory: p < 0.05); c) internal consistency (Cronbach's alpha: MADRS = 0.88; HARS = 0.89); d) test-retest and inter-raters reliability (intraclass correlation coefficient: MADRS = 0.94 and 0.98, respectively; HARS = 0.92 and 0.92), and, e) sensitivity to change (effect size: MADRS = 2.05; HARS = 1.36).
  
  
  CONCLUSIONS
  Spanish versions of MADRS and HARS scales showed good psychometric properties, similar to those of the original scales. Therefore, these scales are suitable for use in clinical practice and research in Spain.
authors.affiliation: Servicio de Psicosomática y Psiquiatría de Enlace, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: Lobo
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Chamorro
authors.forename: Antonio
authors.initials: A
authors.lastname: Luque
authors.forename: Rafael
authors.initials: R
authors.lastname: Dal-Ré
authors.forename: Xavier
authors.initials: X
authors.lastname: Badia
authors.forename: Eva
authors.initials: E
authors.lastname: Baró
mesh_terms: D000328:Adult; D001007:Anxiety / Q000175:diagnosis*; D003863:Depression / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011569:Psychiatric Status Rating Scales