title: How does the ICD-10 symptom rating (ISR) with four items assess depression compared to the BDI-II? A validation study.
abstract: OBJECTIVE
  The "ICD-10 Symptom-Rating" (ISR) is a novel 29-item self-rating questionnaire with scales for the assessment of depression, anxiety, OCD, somatisation and eating disorders and additional items. This study aims at the validation of the depression subscale.
  
  
  METHODS
  Based on a sample of 1844 depressed inpatients, the ISR was correlated with the Beck-Depression-Inventory-II (BDI-II). To estimate the sensitivity to change, the effect sizes were also calculated.
  
  
  RESULTS
  The correlation between ISR and BDI-II was r=0.79. The sensitivity to change for the BDI-II was d=1.44, for the ISR-depression scale d=1.64.
  
  
  CONCLUSIONS
  The studied sample shows a higher psychiatric and somatic comorbidity, a lower mean age and a higher level of education than comparable samples from other psychiatric or psychosomatic studies. Although we cannot find any effects of these differences on our results, they cannot be fully dismissed without further study.
  
  
  CONCLUSIONS
  The ISR-depression scale correlates highly with the BDI-II. Being more sensitive to change than the BDI-II, the ISR is a useful tool to diagnose and measure the severity and course of depression.
authors.affiliation: Sigma-Zentrum für Akutmedizin, Bad Säckingen, Germany.
authors.forename: Wolfram A
authors.initials: WA
authors.lastname: Brandt
authors.affiliation: Department of Psychosomatic Medicine, University of Regensburg, Regensburg, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Loew
authors.affiliation: Institute for Quality Development in Psychotherapy and Psychosomatics (IQP), Munich, Germany.
authors.forename: Friedrich
authors.initials: F
authors.lastname: von Heymann
authors.affiliation: Clinic for Psychosomatic Medicine (Adula-Klinik), Oberstdorf, Germany.
authors.forename: Godehard
authors.initials: G
authors.lastname: Stadtmüller
authors.affiliation: Clinic for Psychosomatic Medicine (Adula-Klinik), Oberstdorf, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Tischinger
authors.affiliation: Clinic for Psychosomatic Medicine (Adula-Klinik), Oberstdorf, Germany.
authors.forename: Frederik
authors.initials: F
authors.lastname: Strom
authors.affiliation: Clinic for Psychosomatic Medicine (Hochgrat-Klinik), Stiefenhofen, Germany.
authors.forename: Judith
authors.initials: J
authors.lastname: Molfenter
authors.affiliation: Sigma-Zentrum für Akutmedizin, Bad Säckingen, Germany. Electronic address: a.georgi@sigma-klinik.de.
authors.forename: Alexander
authors.initials: A
authors.lastname: Georgi
authors.affiliation: Medical Sociology, Department of Epidemiology and Preventive Medicine, University of Regensburg, Regensburg, Germany.
authors.forename: Karin
authors.initials: K
authors.lastname: Tritt
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003863:Depression / Q000175:diagnosis* / Q000523:psychology; D003866:Depressive Disorder / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D038801:International Classification of Diseases; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D011795:Surveys and Questionnaires; D063189:Symptom Assessment / Q000379:methods; D055815:Young Adult
keywords: Affective disorders; Depression; ICD-10; Psychometrics; Scale validation