Table 2.
Scores and standards for the PHQ-9 and BDI questionnaires.
| Tool | N | Lack of data | Mean | SD | Median | Min | Max | Q1 | Q3 |
|---|---|---|---|---|---|---|---|---|---|
| PHQ-9 | 336 | 0 | 6.51 | 5.19 | 6 | 0 | 27 | 2 | 9 |
| BDI | 336 | 0 | 7.59 | 7.85 | 5 | 0 | 40 | 1 | 12 |
| Tool | Number of points | Interpretation | n | % | |||||
| PHQ-9 | 0–4 | No depression | 141 | 41.96% | |||||
| 5–9 | Mild depression | 117 | 34.82% | ||||||
| 10–14 | Moderate depression | 53 | 15.77% | ||||||
| 15–19 | Moderately severe depression | 17 | 5.06% | ||||||
| 20–27 | Severe depression | 8 | 2.38% | ||||||
| BDI | 0–13 | No depression | 271 | 80.65% | |||||
| 14–19 | Mild depression | 39 | 11.61% | ||||||
| 20–28 | Moderate depression | 17 | 5.06% | ||||||
| 29–63 | Severe depression | 9 | 2.68% | ||||||
N, number of participants; PHQ-9, Patient Health Questionnaire-9; BDI, Beck Depression Inventory; SD, standard deviation; Min, minimum; Max, maximum; Q1, lower quartile; Q3, upper quartile.