TABLE 4.

Sensitivity, Specificity, and Predictive Values of the BSI 18, With Prior-Year Major Depression as the Criterion: Youths Aged 16–20 Years, Chicago, IL, 2007–2008

	Diagnosis of Major Depression
BSI 18 Clinical Distress	Negative, No. (Specificity)	Positive, No. (Sensitivity)	Row Total (Predictive Value)
Negative	154	18	172 (154/172 = 90%)
Positive	55	18	73 (18/73 = 25%)
Column total	209 (154/209 = 74%)	36 (18/36 = 50%)

Note. BSI 18 = Brief Symptom Inventory 18. The original sample size was n = 246; the analytic sample size was n = 245 because 1 participant was missing a BSI 18 score. Major depression diagnoses were made in the Computerized Diagnostic Interview Schedule for Children.³⁷