Table 1 Item responses to the PHQ-8
Item | Item responses | Rate of more than half the days to several days | Rate of nearly every day to more than half the days | |||
|---|---|---|---|---|---|---|
Not at all (%) | Several days (%) | More than half the days (%) | Nearly every day (%) | |||
1. Loss of interest or pleasure | 83.2 | 11.1 | 2.4 | 3.3 | 0.21 | 1.38 |
2. Depressed mood | 83.4 | 11.9 | 2.1 | 2.6 | 0.18 | 1.27 |
3. Sleep disturbances | 68.5 | 18.4 | 4.7 | 8.4 | 0.26 | 1.79 |
4. Anergia or fatigability | 60.0 | 25.7 | 5.4 | 8.8 | 0.21 | 1.61 |
5. Appetite disturbances | 82.7 | 10.3 | 2.8 | 4.2 | 0.27 | 1.52 |
6. Low self-esteem | 86.8 | 8.9 | 1.8 | 2.5 | 0.20 | 1.42 |
7. Concentration difficulties | 88.1 | 7.4 | 1.7 | 2.8 | 0.23 | 1.69 |
8. Psychomotor symptoms | 93.7 | 3.7 | 1.0 | 1.5 | 0.28 | 1.47 |
Average | 80.8 | 12.2 | 2.7 | 4.3 | 0.23 ± 0.04 | 1.52 ± 0.17 |