Objective: The purpose of this study was to describe who comes to a vo
luntary depression screening program by analyzing findings from the 19
92 National Depression Screening Day. Method: Survey results from 5,36
7 adult volunteers at 345 facilities were analyzed. The authors examin
ed the prevalence of depression detected at the screening test and soc
iodemographic characteristics and treatment history of the respondents
. They also estimated the percentage of these individuals who would ac
tually have a diagnosis of major depression (positive predictive value
). The main assessment measure was the Zung Self-Rating Depression Sca
le. Results: Of all participants, 76.6% (N=4,109) had at least minimal
depressive symptoms (score of at least 50 on the Zung depression scal
e), 53.3% (N=2,859) had at least moderate symptoms (score of at least
60), and 22.6% (N=1,214) had severe symptoms (score of at least 70). F
ew of the depressed respondents were currently in treatment for a ment
al health problem. The positive predictive value of a screening test d
iagnosis of depression was between 92.5% and 95.5% when a cutoff score
of 60 was used to indicate depression and between 88.7% and 92.3% whe
n a cutoff score of 50 was used. Conclusions: Voluntary screening test
s, as exemplified by results from the National Depression Screening Da
y, provide a good opportunity for identifying previously unidentified
and untreated individuals with depression.