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Mental Health Screening Tools & Psychiatric Calculators

Evidence-based mental health screening tools and psychiatric assessment calculators for depression, anxiety, bipolar disorder, and substance use disorders. These validated instruments support clinical decision-making in primary care and psychiatric settings.

Why This Matters

Mental health disorders affect one in eight people worldwide, with depression as the leading cause of disability. The WHO reports that anxiety disorders affect 301 million people globally, while alcohol use disorders affect 283 million. Despite this high prevalence, a significant treatment gap exists — over 70% of people with mental health conditions in low- and middle-income countries receive no treatment. Validated screening tools like PHQ-9, GAD-7, and AUDIT-C bridge this gap by enabling early detection in primary care settings. The US Preventive Services Task Force (USPSTF) recommends depression screening for all adults, and the WHO's Mental Health Gap Action Programme (mhGAP) endorses these tools for use in non-specialized settings.

When to Use

Use PHQ-9 for depression screening and severity monitoring in adults. Use GAD-7 for generalized anxiety disorder screening. Use AUDIT-C for alcohol use disorder screening in primary care. Use CAGE for rapid alcohol dependence screening. Use MDQ for bipolar disorder screening when mood instability is suspected. These tools are designed for screening, not diagnosis — positive screens require comprehensive clinical evaluation.

Our mental health screening tools follow the DSM-5-TR diagnostic criteria and are aligned with recommendations from the USPSTF, the National Institute for Health and Care Excellence (NICE), and the WHO mhGAP programme. Each tool includes original validation references, cutoff scores with sensitivity/specificity data, and evidence-based interpretation guidelines.

Available Mental Health Calculators

Clinical Guidelines

  • USPSTF Recommendation: Screening for Depression in Adults (2023)
  • NICE Guideline NG222: Depression in Adults (2022)
  • NICE Guideline NG113: Generalised Anxiety Disorder (2023)
  • WHO mhGAP Intervention Guide for Mental, Neurological and Substance Use Disorders (Version 2.0)
  • APA Clinical Practice Guideline for the Treatment of Depression (2023)
Incorporate standardized mental health screening into your practice with Tabeeb+. Our clinic management software enables routine PHQ-9 and GAD-7 tracking, automated scoring, and longitudinal monitoring of treatment response. Early detection and evidence-based treatment improve outcomes for patients with mental health conditions.

Frequently Asked Questions

PHQ-2 is an ultra-brief screening tool consisting of the first two questions of PHQ-9 (anhedonia and depressed mood). A positive PHQ-2 (score ≥3) should be followed by the full PHQ-9 for severity assessment. PHQ-9 provides both screening and severity monitoring capabilities.
A PHQ-9 score of 10 or higher has a sensitivity of 88% and specificity of 88% for major depression. Scores of 5-9 indicate mild depression, 10-14 moderate, 15-19 moderately severe, and 20-27 severe depression.
No. Screening tools are designed to identify individuals who may have a mental health condition and require further evaluation. A positive screen should always be followed by a comprehensive clinical assessment by a qualified mental health professional. These tools cannot replace clinical judgment.

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Medical Disclaimer: This calculator is intended for use by healthcare professionals for educational and clinical decision support purposes only. It is not a substitute for professional clinical judgment.
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