Patient Health Questionnaire (PHQ-9)

1. Little interest or pleasure in doing things.

Not at all Several days More than half the days Nearly every day

2. Feeling down, depressed, or hopeless.

Not at all Several days More than half the days Nearly every day

3. Trouble sleeping or sleeping too much.

Not at all Several days More than half the days Nearly every day

4. Feeling tired or having little energy.

Not at all Several days More than half the days Nearly every day

5. Poor appetite or overeating.

Not at all Several days More than half the days Nearly every day

6. Feeling bad about oneself or like a failure.

Not at all Several days More than half the days Nearly every day

7. Trouble concentrating.

Not at all Several days More than half the days Nearly every day

8. Being noticeably slower or more restless than usual.

Not at all Several days More than half the days Nearly every day

9. Thoughts of self-harm or suicide.

Not at all Several days More than half the days Nearly every day

How difficult have these problems made daily functioning (work, home life, or social interactions)?

Not difficult at all Somewhat difficult Very difficult Extremely difficult

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