The use of the Beck Depression Inventory to screen for depression in the general population: a preliminary analysis

Objective: The aim of the present paper is to study the performance of Beck 's Depression Inventory (BDI) as a screening instrument for depressive diso rders in a general population sample. Methods: 1250 subjects, from 18 to 64 years old, were randomly selected fro m the Santander (Spain) municipal census. A two-stage method was used: in t he first stage, all individuals selected completed the BDI; in the second,' probable cases' (BDI cut-off greater than or equal to 13) and a random 5% s ample of the total sample with a BDI score less than 13 were interviewed by psychiatrists using the Schedules for Clinical Assessment in Neuropsychiat ry (SCAN), which generates diagnoses of depressive disorders. Results: Our data confirm the predictive value of the selected cut-off poin t (12/13): 100% sensitivity, 99% specificity, 0.72 PPV, 1 NPV, and 98% over all diagnostic value. The area under ROC (AUC) was found to be 0.99. There were no statistical differences in terms of sex or age. We conclude that th e BDI is a good instrument for screening depressive disorders in community surveys. (C) 2000 Elsevier Science BN. All rights reserved.