CAGE Alcohol Screen: Clinical Guide

Clinical guide to CAGE Alcohol Screen including items, scoring, interpretation, limitations and references.

Four-question screen for problematic alcohol use.

Overview

Four-question screen for problematic alcohol use.

Clinical Significance

Use the result to support structured assessment, not as a standalone diagnosis or treatment decision.

When to Use

  • Use when a structured assessment with this validated instrument is clinically appropriate.

How It Is Calculated

  • Item values are summed and mapped to the published interpretation bands.

Interpretation

  • Interpret the score with clinical findings, collateral information and current guidance.

Worked Example

Select a verified response for each item; MedicalC sums the assigned values and displays the interpretation band.

Limitations

  • Screening and severity scales do not establish a diagnosis by themselves.
  • Language, cognition, acute illness and setting can affect responses.

Clinical Pearls

  • Document individual responses as well as the total score.
  • Escalate immediately when an item identifies urgent risk, regardless of the total.

Common Mistakes

  • Using incomplete responses.
  • Ignoring item-specific red flags because the overall score is low.

Frequently Asked Questions

What does this tool calculate?

Four-question screen for problematic alcohol use.

Can this result be used alone?

No. It supports, but does not replace, a complete clinical assessment.

References

  1. Ewing JA. JAMA. 1984;252:1905-1907. — Primary or supporting reference for the implemented instrument.

Reviewed by: MedicalC Clinical Editorial Team
Last reviewed: July 2026

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