From: Assessment of depression severity with the PHQ-9 in cancer patients and in the general population
Item | F1 | F2 | r it | alpha (del) | |
---|---|---|---|---|---|
1 | Loss of interest | .54 | .47 | .60 | .82 |
2 | Feeling depressed | .49 | .66 | .68 | .82 |
3 | Sleep problems | .75 | .03 | .51 | .84 |
4 | Loss of energy | .78 | .27 | .70 | .81 |
5 | Appetite problems | .58 | .27 | .52 | .83 |
6 | Self-blame | .33 | .65 | .54 | .83 |
7 | Concentration problems | .65 | .32 | .61 | .82 |
8 | Agitation/retardation | .63 | .21 | .52 | .83 |
9 | Suicidal ideation | .03 | .85 | .43 | .84 |