Table 1:
Self-Administered Symptom Scales for Depression and Anxiety
| Scale | Reporting Period | No. Items | Response Range/Item | Total Scorea |
|---|---|---|---|---|
| PHQ-9 | Last 2 wk | 9 | 0–3 | 0–27 |
| PHQ-222 | Last 2 wk | 2 | 0–3 | 0–6 |
| HADS | Past week (7 d) | Depression: 7 | Depression: 0–3 | Depression: 0–21 |
| Anxiety: 7 | Anxiety: 0–3 | Anxiety: 0–21 | ||
| Kessler-6 | Past 30 d | 6 (5/6 for depression) | 1–5 | 6–30 |
| PROMIS Depression | Past week (7 d) | 8 | 1–5 | 38.2–81.3 (transformed scores into T scores) |
| GAD-7 | Past 2 wk | 7 | 0–3 | 0–21 |
| OASIS | Past wk (7 d) | 5 | 0–4 | 0–20 |
| PROMIS Anxiety | Past wk (7 d) | 8 | 1–5 | 37.1–83.1 (transformed scores into T scores) |
aFor all measures used, higher scores indicate more severe symptoms.