Depression Assessment Questionnaire

Precisely defining depression is often difficult, as a decline in mood is not always clinical depression. To help identify depression, we offer a self-administered questionnaire with high validity, which will help you determine the likely presence of depression.

The results you obtain will help you better understand your level of depression, so that you can consult a specialist if necessary.

Please note that the result obtained in the test does not constitute a diagnosis. In case of a high score, consultation with a specialist is recommended!

Instructions for completion

Over the last 2 weeks, how often have you been bothered by the following symptoms?

Depression Questionnaire PHQ-9

Not at all

(0)

More than half the days

(2)

Nearly every day

(3)

Score

1.

(0)

(1)

(2)

(3)

2.

(0)

(1)

(2)

(3)

3.

(0)

(1)

(2)

(3)

4.

(0)

(1)

(2)

(3)

5.

Poor appetite or overeating

(0)

(1)

(2)

(3)

6.

(0)

(1)

(2)

(3)

7.

Trouble concentrating on things, such as reading the newspaper or watching television

(0)

(2)

(3)

8.

Moving or speaking so slowly that other people could have noticed? Or the opposite — being so fidgety or restless that you were moving around a lot more than usual

(0)

(2)

(3)

9.

Thoughts that you would be better off dead, or of hurting yourself in some way

(0)

(2)

(3)

Total score

Scoring Key

To calculate the total score, add up the score for each response. Note that each response corresponds to a different score:

• Not bothered at all - 0 points
• Slightly bothered - 1 point
• Very much bothered - 2 points

For interpretation of the total score, see:

Severity of depressive symptoms

Score

Minimal

1-4

Mild

5-9

Moderate

10-14

Moderately severe

15-19

High (acute)

20-27