PHQ-9 calculator

PHQ-9 (Patient Health Questionnaire)

PHQ-9 Depression Screening

Over the last 2 weeks...	Not at all (0)	Several days (1)	More than half (2)	Nearly every day (3)
1. Little interest or pleasure	1 0	1	2	3
2. Feeling down, depressed, hopeless	1 0	1	2	3
3. Trouble falling/staying asleep	1 0	1	2	3
4. Feeling tired/little energy	1 0	1	2	3
5. Poor appetite or overeating	1 0	1	2	3
6. Feeling bad about yourself	1 0	1	2	3
7. Trouble concentrating	1 0	1	2	3
8. Moving/speaking slowly or being fidgety	1 0	1	2	3
9. Thoughts of self-harm	1 0	1	2	3
PHQ-9 Score		/ 27

Interpretation

0–4	Minimal depression
5–9	Mild depression
10–14	Moderate depression — Consider treatment plan.
15–19	Moderately severe depression — Active treatment recommended.
20–27	Severe depression — Immediate treatment, consider referral.

References

Kroenke K, Spitzer RL, Williams JB. The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med. 2001;16(9):606-613. PMID 11556941.