Table 2.
Abbreviation, mean, standard deviation, and presence of symptoms in PHQ-9, GAD-7, and PSS-4.
| Depression symptoms | Abbreviation | Mean (SD) | % Presence | Predictability |
|---|---|---|---|---|
| Little interest or pleasure in doing things | D1: Anhedonia | 0.47 (0.80) | 32.93 | 0.58 |
| Feeling down, depressed, irritable, or hopeless | D2: Sadness | 0.34 (0.66) | 26.31 | 0.55 |
| Trouble falling asleep, staying asleep, or sleeping too much | D3: Sleeping | 0.59 (0.90) | 37.45 | 0.42 |
| Feeling tired, or having little energy | D4: Fatigue | 0.48 (0.75) | 35.43 | 0.58 |
| Poor appetite, weight loss, or overeating | D5: Appetite | 0.38 (0.70) | 28.57 | 0.42 |
| Feeling bad about yourself, or that you're a failure or that you've let yourself or your family down | D6: Failure | 0.28 (0.64) | 19.85 | 0.53 |
| Trouble concentrating on things like school work, reading, or watching TV | D7: Concentration | 0.30 (0.65) | 20.09 | 0.51 |
| Moving or speaking so slowly that other people could notice | D8: Motor | 0.20 (0.54) | 15.17 | 0.53 |
| Thinking that you would be better off dead, or of hurting yourself in some way | D9: Suicidality ideation | 0.07 (0.35) | 5.57 | 0.33 |
| Feeling nervous, anxious, or on edge | A1: Nervousness | 0.41 (0.70) | 32.36 | 0.62 |
| Not being able to stop or control worrying | A2: Uncontrollable worry | 0.29 (0.62) | 22.92 | 0.66 |
| Worrying too much about different things | A3: Excessive worry | 0.35 (0.67) | 26.63 | 0.59 |
| Trouble relaxing | A4: Trouble relaxing | 0.29 (0.63) | 22.20 | 0.66 |
| Being so restless that it's hard to sit still | A5: Restlessness | 0.23 (0.59) | 16.95 | 0.69 |
| Becoming easily annoyed or irritable | A6: Irritability | 0.27 (0.59) | 21.15 | 0.57 |
| Feeling afraid as if something awful might happen | A7: Feeling afraid | 0.22 (0.55) | 16.79 | 0.56 |
| Unable to control the important things in your life | S1: Uncontrollable | 0.60 (0.98) | 31.64 | 0.54 |
| Not confident about your ability to handle your personal problems | S2: Not confident | 1.26 (1.43) | 49.15 | 0.50 |
| Things were not going your way | S3: Unsatisfactory | 1.05 (1.27) | 47.05 | 0.47 |
| Difficulties were pilling up so high that you could not overcome them | S4: Many difficulties | 0.69 (1.02) | 36.56 | 0.52 |
D1–D9 are PHQ-A items on depression. A1–A7 are GAD-7 items on anxiety. S1–S4 are PSS-4 items on perceived stress. SD, Standard Deviation.