PHQ-9 Assessment

Major Depressive Disorder involves persistent sadness, loss of interest and functional impairment. The nine-item Patient Health Questionnaire (PHQ-9) quantifies depressive symptom frequency over two weeks. Each statement represents a diagnostic criterion, scored from 0 to 3. Summed scores gauge severity and monitor treatment outcomes objectively.

This assessment presents each item sequentially, providing an immediate total and categorical severity label. A bar chart visualises your score against the 27-point maximum. Use the results to understand current mood patterns and to facilitate informed consultations with healthcare providers.

Complete the questionnaire in a quiet space for accurate reflection. Retake periodically to observe progress. Discuss significant changes with professionals and trusted supporters. Keep practising healthy lifestyle habits regardless of score. Results do not constitute a clinical diagnosis.

Technical Details:

The tool converts response frequencies into a cumulative depression severity score.

• Nine straightforward statements covering DSM-5 depression criteria
• Four-point Likert responses captured with radio buttons
• Live progress indicator and tooltip explanations for each symptom
• Automatic scoring from 0-27 with five severity bands
• Responsive bar chart for visual feedback
• PDF export for sharing results with clinicians
• All processing occurs locally; no data leaves the device

Calculations-and-Scoring:

Step-by-Step Guide:

Follow these actions to complete the PHQ-9 effectively.

1. Select “Start Assessment” to load the first item.
2. Read the statement and evaluate your experience.
3. Pick the frequency that best matches your last two weeks.
4. Continue through all nine items, watching progress update.
5. Review the result card displaying your score and severity.
6. Save or print the PDF for future comparison.

FAQ:

Clarifications address common user concerns.