Table 2 Mean scores on individual items of the QIDS-SR ₁₆ (N = 621)

1

Sleep onset insomnia

0.93

1.09

2

Mid-nocturnal insomnia

0.76

0.99

3

Early morning insomnia

0.41

0.86

4

Hypersomnia (excessive sleep)

1.03

0.92

5

Feeling depressed

0.65

0.76

6

Decreased appetite

0.20

0.50

7

Increased appetite

0.35

0.69

8

Weight reduction

0.39

0.79

9

Weight gain

0.36

0.77

10

Concentration/decision making

0.64

0.81

11

Self-view

0.69

1.09

12

Suicide ideation

0.32

0.68

13

General interest

0.40

0.75

14

Energy level

0.55

0.77

15

Feeling slowed down

0.35

0.72

16

Feeling restless

0.49

0.82