PHQ-9 interpretação
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The PHQ-9 Interpretation Calculator is a tool used to assess the severity of depressive symptoms in individuals. It is based on the Patient Health Questionnaire-9 (PHQ-9), which consists of 9 questions that address different aspects of depression, such as depressed mood, loss of interest in activities, changes in appetite and sleep, fatigue, difficulty concentrating, feelings of worthlessness or guilt, and thoughts of death or suicide. The score ranges from 0 to 27, with higher scores indicating greater severity of symptoms.
The interpretation of PHQ-9 results is done based on the total score obtained. Scores can be classified into different categories of severity, from minimal depression (0-4 points) to severe depression (20-27 points). It is essential to remember that this calculator does not replace a medical diagnosis but serves as a screening tool to help identify the need for a more thorough evaluation by a healthcare professional.
When using the PHQ-9 Interpretation Calculator, it is crucial to keep in mind that depression is a complex condition that can affect individuals in different ways. Additionally, the presence of depressive symptoms may be related to other medical or psychological conditions. Therefore, it is essential that the results are interpreted by a qualified healthcare professional who can consider the patient's complete clinical context.
It is vital to highlight that depression is a treatable condition. With the correct diagnosis and adequate treatment, many people can overcome depressive symptoms and improve their quality of life. The PHQ-9 Interpretation Calculator can be an important first step in this process, helping to identify the need to seek medical help.
Frequently asked questions
What is PHQ-9 and what is it used for?
The PHQ-9 is a questionnaire that assesses the severity of depressive symptoms in individuals. It serves as a screening tool to identify the need for a more thorough evaluation by a healthcare professional.
How is the PHQ-9 score calculated?
The PHQ-9 score is calculated based on the answers to the 9 questions on the questionnaire, ranging from 0 to 27.
What are the categories of depression severity based on PHQ-9?
The categories of depression severity based on PHQ-9 include: minimal depression (0-4 points), mild depression (5-9 points), moderate depression (10-14 points), moderately severe depression (15-19 points), and severe depression (20-27 points).
Does the PHQ-9 Interpretation Calculator replace a medical diagnosis?
No, the PHQ-9 Interpretation Calculator does not replace a medical diagnosis. It serves as a screening tool to help identify the need for a more thorough evaluation by a healthcare professional.
What should I do if I get a high score on the PHQ-9?
If you get a high score on the PHQ-9, it is essential to seek medical help. A healthcare professional can evaluate your case and provide guidance and appropriate treatment.