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DOI: 10.1055/s-2008-1067335
© Georg Thieme Verlag KG Stuttgart · New York
Zur Validität eines zweistufigen Screenings am Beispiel des Depressionsscreening
The Validity of a Two-Step-Screening Procedure for DepressionPublication History
Publication Date:
27 May 2008 (online)


Zusammenfassung
Anliegen Ein zweistufiges Depressionsscreening für den praktischen Arzt wird hinsichlich der Validität untersucht. Methode Anhand publizierter Validitätskennzahlen bestehender Screeninginstrumente wird die zu erwartende Validität dieses zweistufigen Verfahrens ermittelt. Ergebnisse Die Gesamtzahl der vom praktischen Arzt zu untersuchenden Screening-Positiven sinkt im Vergleich zu Standardscreenings bei leicht verringerter Sensitivität und deutlich erhöhter Spezifität. Diskussion Das Verfahren erlaubt mit geringem Aufwand die Erkennungsrate von Depression beim praktischen Arzt zu erhöhen.
Abstract
Objective Several studies reported that general practitioners often do not recognize depressive disorders among their patients. Routine screening is a time-consuming procedure which might be improved by means of a two-step procedure. Using a very brief screening instrument in a first step reduces the number of patients needing a longer conventional screening in a second step. Only screening positives after this second step will be examined by the general practitioner (GP). Methods Based upon validity scores from published studies, the expected validity of such a two-step procedure is being investigated. Results This two-step screening procedure decreases the overall number of screening positives who have to be examined for the presence of depression by the GP. While the combined sensitivity slightly decreases, the combined specifity increases. Conclusions The proposed method allows for a practicable routine screening for depression by the GP. The procedure might further be improved through the development of instruments optimized for the first and the second step.
Schlüsselwörter
Screening - Depression - Validität
Key words
screening - depression - validity