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Depression Screening (PHQ-2/PHQ-9)

Health
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This calculator uses the PHQ-2 and PHQ-9 questionnaires to screen for depression symptoms and assess their severity. The PHQ-2 is a quick screening tool, while the PHQ-9 provides a more detailed assessment.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Over the last 2 weeks, how often have you been bothered by feeling down, depressed or hopeless?, Over the last 2 weeks, how often have you been bothered by having little interest or pleasure in doing things?, Little interest or pleasure in doing things, Feeling down, depressed, or hopeless, Trouble falling or staying asleep, or sleeping too much, Feeling tired or having little energy, Poor appetite or overeating, Feeling bad about yourself β€” or that you are a failure or have let yourself or your family down, Trouble concentrating on things, such as reading the newspaper or watching television, Moving or speaking so slowly that other people could have noticed. Or the opposite β€” being so fidgety or restless that you have been moving around a lot more than usual, and Thoughts that you would be better off dead, or of hurting yourself in some way in the units shown.

Step 2

Read PHQ-9 Score, PHQ-2 Score, PHQ-9 Interpretation, and PHQ-2 Interpretation in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Minimal Symptoms (PHQ-2)

Over the last 2 weeks, how often have you been bothered by feeling down, depressed or hopeless?: Not at all; Over the last 2 weeks, how often have you been bothered by having little interest or pleasure in doing things?: Not at all; Little interest or pleasure in doing things: Not at all; Feeling down, depressed, or hopeless: Not at all; Trouble falling or staying asleep, or sleeping too much: Not at all; Feeling tired or having little energy: Not at all; Poor appetite or overeating: Not at all; Feeling bad about yourself β€” or that you are a failure or have let yourself or your family down: Not at all; Trouble concentrating on things, such as reading the newspaper or watching television: Not at all; Moving or speaking so slowly that other people could have noticed. Or the opposite β€” being so fidgety or restless that you have been moving around a lot more than usual: Not at all; Thoughts that you would be better off dead, or of hurting yourself in some way: Not at all

PHQ-9 Score: 0; PHQ-2 Score: 0; PHQ-9 Interpretation: Minimal Depression; PHQ-2 Interpretation: Negative for depression. Continue monitoring.

Mild Symptoms (PHQ-2)

Over the last 2 weeks, how often have you been bothered by feeling down, depressed or hopeless?: Several days; Over the last 2 weeks, how often have you been bothered by having little interest or pleasure in doing things?: Several days; Little interest or pleasure in doing things: Several days; Feeling down, depressed, or hopeless: Several days; Trouble falling or staying asleep, or sleeping too much: Not at all; Feeling tired or having little energy: Not at all; Poor appetite or overeating: Not at all; Feeling bad about yourself β€” or that you are a failure or have let yourself or your family down: Not at all; Trouble concentrating on things, such as reading the newspaper or watching television: Not at all; Moving or speaking so slowly that other people could have noticed. Or the opposite β€” being so fidgety or restless that you have been moving around a lot more than usual: Not at all; Thoughts that you would be better off dead, or of hurting yourself in some way: Not at all

PHQ-9 Score: 2; PHQ-2 Score: 2; PHQ-9 Interpretation: Minimal Depression; PHQ-2 Interpretation: Negative for depression. Continue monitoring.

Moderate Symptoms (PHQ-9)

Over the last 2 weeks, how often have you been bothered by feeling down, depressed or hopeless?: More than half the days; Over the last 2 weeks, how often have you been bothered by having little interest or pleasure in doing things?: More than half the days; Little interest or pleasure in doing things: More than half the days; Feeling down, depressed, or hopeless: More than half the days; Trouble falling or staying asleep, or sleeping too much: Several days; Feeling tired or having little energy: Several days; Poor appetite or overeating: Not at all; Feeling bad about yourself β€” or that you are a failure or have let yourself or your family down: Several days; Trouble concentrating on things, such as reading the newspaper or watching television: Several days; Moving or speaking so slowly that other people could have noticed. Or the opposite β€” being so fidgety or restless that you have been moving around a lot more than usual: Not at all; Thoughts that you would be better off dead, or of hurting yourself in some way: Not at all

PHQ-9 Score: 8; PHQ-2 Score: 4; PHQ-9 Interpretation: Mild Depression; PHQ-2 Interpretation: Positive for depression. Further evaluation recommended.

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Important

Use the result as an estimate and confirm any medical decisions with a qualified professional.