CAGE Questionnaire: Four Questions, Scoring, Uses, and Limits

The CAGE Questionnaire is a four-question, lifetime alcohol screen that identifies alcohol-related concerns for further discussion. Each yes response receives one point; the score supports follow-up but does not diagnose alcohol use disorder or measure current intoxication.

CAGE focuses on consequences, concern, and attempts to change drinking. It does not quantify drinks, drinking frequency, or a past-year binge pattern.

The tool is brief and easy to remember, but a short lifetime screen should not replace a broader alcohol assessment when risk or harm is present.

What Is the CAGE Questionnaire?

CAGE is a four-item alcohol questionnaire built around Cut down, Annoyed, Guilty, and Eye-opener. The original instrument asks about experiences across a person's lifetime rather than only the previous 12 months.

CAGE is a case-finding tool. It identifies a reason to ask more questions; it does not establish alcohol use disorder, severity, withdrawal risk, or a treatment recommendation.

What Are the Four CAGE Questions?

The four CAGE questions ask about reducing drinking, criticism, guilt, and morning drinking. The standard questions are:

1. Cut down: Have you ever felt you should cut down on your drinking?
2. Annoyed: Have people annoyed you by criticizing your drinking?
3. Guilty: Have you ever felt bad or guilty about your drinking?
4. Eye-opener: Have you ever had a drink first thing in the morning to steady your nerves or get rid of a hangover?

What Is CAGE-AID?

CAGE-AID adapts the four CAGE questions to include drug use with alcohol use. The adapted wording asks whether a person has considered cutting down, felt annoyed by criticism, felt guilty, or used a substance first thing in the morning to steady themselves or relieve a hangover.

CAGE-AID broadens the substance scope, but it does not become a comprehensive drug screen. A drug-specific tool is needed when the substance, route, frequency, overdose risk, or withdrawal pattern requires detail.

The DAST-10 addresses drug-related problems without alcohol and therefore answers a different screening question than CAGE-AID.

How Is the CAGE Questionnaire Scored?

CAGE scoring assigns one point to each yes response. Four questions produce a total score from 0 to 4.

• 0: no CAGE item endorsed; concern can still exist outside the questions.
• 1: one concern endorsed; the result may justify a nonjudgmental discussion and additional questions.
• 2: the conventional clinical threshold for further assessment.
• 3 to 4: multiple concerns endorsed; a fuller alcohol assessment is appropriate.

The cutoff is a screening convention, not a diagnosis. The meaning of a score changes with the population, setting, purpose of screening, and consequences already known to the clinician.

How Should a CAGE Score Be Interpreted?

A CAGE score is interpreted as a prompt for follow-up, not as a severity label. A score of 2 or more commonly supports additional assessment, while a score below 2 does not rule out risky drinking or alcohol-related harm.

CAGE can miss people whose drinking is risky but has not produced the lifetime consequences in the four questions. A past-year tool such as AUDIT measures consumption, dependence symptoms, and harm more broadly.

When Is CAGE Used?

CAGE is used as a brief case-finding conversation in clinical and behavioral-health settings. It can open a discussion when a person reports alcohol-related concerns, a clinician notices consequences, or a history suggests the need for more detail.

Because the four questions are quick, a trained professional can use them before deciding whether a longer screen, diagnostic interview, medical evaluation, or referral is needed.

Can You Use CAGE as a Self-Assessment?

Yes, a person can answer CAGE for self-reflection, but self-scoring does not establish a diagnosis. A positive response is a reason to discuss drinking honestly with a qualified professional, especially when withdrawal, injury, impaired control, or co-occurring symptoms are present.

What Are the Limits of CAGE?

CAGE has limits because it is brief, lifetime-based, consequence-focused, and dependent on self-report. It does not calculate alcohol quantity, frequency, recent binge drinking, current blood or breath alcohol, or the full diagnostic criteria for alcohol use disorder.

Research performance varies by population, setting, cutoff, and outcome. A published sensitivity or specificity value from one study should not be presented as universal accuracy.

NIAAA notes that CAGE can miss people who would benefit from brief intervention. A lower score should not overrule current safety concerns or a detailed drinking history.

What Happens After a Positive CAGE Screen?

A positive CAGE screen leads to a fuller review of drinking, consequences, medical risk, and the person's goals. Follow-up may include a past-year questionnaire, diagnostic assessment, withdrawal-risk review, or brief intervention.

Severe tremor, confusion, hallucinations, or seizures after reducing alcohol require urgent medical evaluation. A CAGE score should never be used to decide that withdrawal is safe to manage alone.