CAGE-AID: CAGE Adapted to Include Drugs

The CAGE-AID (CAGE Adapted to Include Drugs) is a 4-item screening tool that expands the original CAGE alcohol questionnaire to include drug use. Developed by Brown and Rounds (1995), it is one of the most widely recognized brief screening instruments for identifying potential substance use disorders in clinical settings.

Why the CAGE-AID matters: Substance use disorders affect approximately 20 million Americans annually, yet the majority go undiagnosed and untreated. Many patients use both alcohol and drugs, making a combined screening approach more clinically useful than alcohol-only instruments. The CAGE-AID addresses this gap by asking about both alcohol and drug use in a single, efficient screen.

The CAGE-AID mnemonic: Each question corresponds to a letter in the CAGE acronym:

• C — Cut down: Have you felt you should cut down on your drinking or drug use?
• A — Annoyed: Have people annoyed you by criticizing your substance use?
• G — Guilty: Have you felt bad or guilty about your drinking or drug use?
• E — Eye-opener: Have you used substances first thing in the morning?

Validation and reliability: The CAGE-AID has been validated in primary care, psychiatric, and obstetric settings. Studies demonstrate sensitivity of 0.79-0.91 and specificity of 0.77-0.94 for identifying substance use disorders when using a cutoff of 2 or more positive responses. The instrument performs well across diverse populations and clinical contexts.

Clinical applications: The CAGE-AID is commonly used for initial screening during clinical intake, annual wellness visits, and prenatal care. Its yes/no format makes it quick to administer verbally or on paper. A positive screen should be followed by more comprehensive assessment using tools like the AUDIT, DAST-10, or structured clinical interview.

Important disclaimer: The CAGE-AID is a screening tool and cannot diagnose substance use disorder. A positive screen indicates the need for further clinical evaluation. If you or someone you know is struggling with substance use, contact the SAMHSA National Helpline at 1-800-662-4357 (free, confidential, 24/7).

Reference: This assessment is based on the CAGE-AID as described by Brown and Rounds (1995) in the Wisconsin Medical Journal. The original CAGE was developed by John Ewing (1984).

You'll answer 4 yes/no questions about your experiences with alcohol and drug use. Each "Yes" response scores 1 point, producing a total score between 0 and 4.

Before you begin: The CAGE-AID asks about your lifetime experiences with alcohol and drugs. Answer honestly based on any time in your life, not just recent use. "Drugs" refers to any non-prescribed substance use or misuse of prescription medications.

The 4 areas assessed:

Cut down:

• Whether you've felt a need to reduce your substance use — indicating awareness that use may be problematic

Annoyed:

• Whether others have expressed concern about your substance use — reflecting social consequences

Guilty:

• Whether you've experienced guilt about your substance use — suggesting internal conflict about use patterns

Eye-opener:

• Whether you've used substances first thing in the morning — a hallmark sign of physical dependence

Most people complete the assessment in 1-2 minutes.

Total Score Interpretation (0-4):

0 (Negative Screen): No positive responses. Substance use disorder is unlikely based on this screening. No further substance use assessment is indicated at this time.

1 (Low Risk): One positive response. While below the standard clinical cutoff, this may indicate early or mild substance use concerns. Clinical judgment should guide whether further assessment is warranted, particularly if the positive item is the eye-opener question, which is more strongly associated with dependence.

2-3 (Positive Screen): Two or three positive responses meet or exceed the recommended clinical cutoff. This score is suggestive of a substance use problem and warrants comprehensive clinical evaluation. Further assessment with the full AUDIT, DAST-10, or structured clinical interview is recommended. Brief intervention may be appropriate.

4 (Strongly Positive): All four items endorsed. This score is highly suggestive of a substance use disorder requiring prompt clinical attention. Comprehensive assessment, treatment referral, and safety planning should be considered.

Clinical cutoff: The standard cutoff is 2 or more positive responses. At this threshold, the CAGE-AID demonstrates good sensitivity and specificity for identifying substance use disorders. Some clinicians use a cutoff of 1 for higher sensitivity, particularly in high-risk populations or prenatal settings.

Item-level interpretation:

• The eye-opener item is the strongest individual predictor of dependence
• The cut down and guilty items often indicate awareness of problematic use
• The annoyed item reflects social and interpersonal consequences
• Endorsing all four items strongly suggests physical dependence

Next steps for positive screens: A positive CAGE-AID should prompt further evaluation including quantity/frequency assessment, DSM-5 diagnostic criteria review, functional impairment assessment, and discussion of treatment options.

Crisis support: If you or someone you know needs help with substance use, contact the SAMHSA National Helpline at 1-800-662-4357 (free, confidential, 24/7).