Table 5. Diagnostic characteristics of Beck Depression Inventory by follow-up period in Korean middle-aged men.
| Cut-off of 31 or abovea | Unbinned total score | ||
|---|---|---|---|
| Follow-up period | Characteristics | Rate (95% CI)b | Rate (95% CI)b |
| From 2001 to 2008 | Sensitivityc | 66 (50–78) | |
| Specificityd | 73 (72–74) | ||
| AUCe | 0.69 (0.62–0.77) | 0.71 (0.63–0.80) | |
| From 2001 to 2004 | Sensitivityc | 75 (50–90) | |
| Specificityd | 73 (72–74) | ||
| AUCe | 0.74 (0.63–0.85) | 0.75 (0.61–0.90) | |
| From 2005 to 2008 | Sensitivityc | 60 (41–76) | |
| Specificityd | 74 (73–75) | ||
| AUCe | 0.67 (0.57–0.77) | 0.69 (0.58–0.80) |
Notes.
- AUC
- area under the receiver operating characteristics curve
- CI
- confidence interval
a
Cutoff score based on third quartile.
b
95% CI was calculated using Wilson score method.
c
Proportion of true positives (suicides) correctly identified.
d
Proportion of true negatives (non-suicides) correctly identified.
e
A diagnostic test with an AUC value of 1.0 or 0.5 represents a perfect test or an uninformative test, respectively.