What does a PHQ-9 score of 10 mean?

A PHQ-9 score of 10–14 indicates moderate depression. Scores ≥10 are the commonly used clinical cutpoint for major depressive disorder, with sensitivity and specificity both around 88%.

How often should PHQ-9 be repeated?

In active treatment, PHQ-9 is typically repeated every 2–4 weeks to monitor treatment response. A 5-point change is considered a minimum clinically important difference.

PHQ-9 Depression Severity Score

Calculate the Patient Health Questionnaire-9 (PHQ-9) depression severity score. Scores 0–27 map to minimal, mild, moderate, moderately severe, and severe depression categories used in clinical and research settings.

Data set — comma or newline separated

Statistical Results — n = 8

Count (n)8

Sum (Σx)40

Min2

Max9

Range7

Q14

Q35.5

IQR1.5

Mean (μ)5

Median4.5

Mode4

Pop. Variance (σ²)4

Pop. Std Dev (σ)2

Sample Variance (s²)4.571428571

Sample Std Dev (s)2.138089935

Skewness0.65625

Excess Kurtosis-0.21875

How to Use

Enter the values for the scenario you are assessing. Calculate the Patient Health Questionnaire-9 (PHQ-9) depression severity score. Scores 0–27 map to minimal, mild, moderate, moderately severe, and severe depression categories used in clinical and research settings. Use the phq-9 score result to inform your calculation.

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Frequently Asked Questions

What does a PHQ-9 score of 10 mean?

How often should PHQ-9 be repeated?