Table 1.
The efficacy of the HAD scale in identifying depression according to ICD 10 criteria using the combined anxiety and depression subscales and Present State Examination interview
|
Threshold scores
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | |
| Sensitivity (%) | 77 | 77 | 72 | 72 | 68 | 68 | 54 | 54 | 45 |
| Specificity (%) | 37 | 44 | 50 | 56 | 63 | 67 | 70 | 74 | 83 |
| PPV (%) | 25 | 28 | 29 | 32 | 34 | 36 | 34 | 37 | 43 |
| NPV (%) | 85 | 87 | 86 | 86 | 87 | 88 | 84 | 85 | 84 |
HAD=Hospital Anxiety and Depression Scale; ICD=International Classification of Diseases; PPV, NPV=positive and negative predictive values