A PHQ-2 score of 3 or higher is a positive depression screen and supports a fuller assessment. It is not a diagnosis. Scores from 0 to 2 are below the usual cutoff, but they still cannot rule out depression when symptoms persist or interfere with daily life.
PHQ-2 score ranges
| Score | Screen result | What it means |
|---|---|---|
| 0-2 | Below cutoff | The screen is negative, but two questions cannot rule depression out. |
| 3-6 | Positive screen | A broader assessment or clinical interview can clarify the result. |
The PHQ-2 has one cutoff, not separate mild and severe bands. Scores of 3 and 6 are both positive. Neither creates a separate severity band. The total cannot show whether treatment is needed.
What the PHQ-2 screens for
The PHQ-2 asks about depressed mood and loss of interest or pleasure during the previous two weeks. These are two central depression symptoms, but they are only part of a diagnostic assessment.
The screen does not cover most other depression symptoms. It also does not assess functioning, possible causes, or current safety. A clinician will ask about other symptoms and daily life. Health conditions, medications, substances, recent events, and prior episodes also matter.
Evidence behind the cutoff of 3
In the original adult validation study, 580 primary care and obstetrics-gynecology patients received an independent mental health interview. At a cutoff of 3, the PHQ-2 identified 82.9% of participants whose interview found major depression, while 90.0% of those without major depression returned a below-cutoff result.
Only 38.4% of participants with a positive screen had major depression in that subsample. Follow-up still matters. The result was useful for deciding who needed more assessment, not for diagnosing an individual. Context changes accuracy. The chance that a positive result reflects depression can differ across settings and populations.
What to do with a positive result
A positive PHQ-2 supports a fuller look at your symptoms, and one option is the PHQ-9, which includes the same two symptom areas and covers seven more. A clinical interview can also examine functioning, context, medical explanations, and other conditions.
The PHQ-9 is still a screening and symptom-severity tool. Neither questionnaire can establish a diagnosis or select a treatment on its own.
What to do with a below-cutoff result
Symptoms still matter. Consider speaking with a healthcare professional if low mood or loss of interest persists or returns often. Do the same if work, relationships, sleep, or self-care become harder.
A low PHQ-2 can miss depression symptoms outside its two questions. It also does not screen for anxiety. If both anxiety and depression symptoms concern you, the PHQ-4 score guide explains a brief combined screen.
Grief, stress, medical illness, medication effects, substance use, and other mental health conditions can overlap with depression symptoms. The result cannot tell you which explanation fits.
When safety cannot wait
The PHQ-2 does not ask about suicide or self-harm. Get immediate help if you may act on these thoughts or cannot keep yourself safe. Do not wait for a higher score. Treat any other life-threatening emergency with the same urgency.
If you need help now. In the US, Call 988 or text 988. Call 911 if you are in immediate danger. Outside the US, contact your local emergency number or find support in your country.
The useful next step
Use the PHQ-2 as a doorway, not a verdict. A score of 3 or higher supports follow-up. A lower score does not overrule persistent symptoms, impaired functioning, or a safety concern.