PHQ-9 Depression Screener & Score Calculator

Calculate your Patient Health Questionnaire (PHQ-9) score to evaluate depressive symptom severity.

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Psychometric & Sleep Inputs

Enter item scores, hours of sleep, or body weight.

Calculated Score / Category

12 Points Moderate Severity Category
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Clinical Assessment Tip

Psychometric questionnaires are screening instruments. A score above clinical cutoff warrants professional evaluation.

Psychometric & Sleep Architecture Methodology

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Formulas

Total Score = โˆ‘ Item Scores (0-3 scale per question)

Applies validated DSM-5 clinical screening rubrics and AASM sleep cycle standards.

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Crisis & Support Disclaimer

If you are in distress or having thoughts of self-harm, call 988 (Suicide & Crisis Lifeline) immediately.

How to Complete Self-Assessments Step-by-Step

Follow these simple steps for self-screening:

1

Read Each Question Carefully

Consider your symptoms over the past 2 weeks (0 = Not at all, 3 = Nearly every day).

2

Select Ratings for All Items

Enter your rating for each item in the calculator form above.

3

View Total Score & Severity Range

Instantly view calculated total points, severity level (minimal, mild, moderate, severe), and recommendations.

Detailed Insights & FAQ

โ„น๏ธ About this Assessment

Tracking symptom scores provides objective feedback to share with your physician or mental health therapist.

Variable Glossary

Input

Item Responses

Numerical frequency scores for individual symptoms.

Output

Sum Score / Cutoff

Aggregated total score and clinical threshold category.

Frequently Asked Questions

How long does a full sleep cycle last?
An average human sleep cycle lasts approximately 90 minutes, progressing through NREM stages 1-3 and REM sleep.
Is online mental health screening confidential?
Yes, calculations run client-side in your web browser. No personal health data is submitted or stored on external servers.