Table 2 Mean scores of the PHQ-9 items and the sum score for cancer patients and the general population

1

Loss of interest

0.71

0.73

0.52

0.63

0.30

2

Feeling depressed

0.59

0.70

0.38

0.60

0.35

3

Sleep problems

1.07

0.95

0.63

0.75

0.59

4

Loss of energy

0.97

0.78

0.65

0.70

0.46

5

Appetite problems

0.45

0.75

0.28

0.56

0.30

6

Self-blame

0.33

0.61

0.20

0.48

0.27

7

Concentration problems

0.64

0.71

0.39

0.60

0.42

8

Agitation/retardation

0.35

0.64

0.16

0.45

0.42

9

Suicidal ideation

0.15

0.43

0.10

0.35

0.14

Sum score

5.26

4.27

3.30

3.65

0.54