CAGE Alcohol Screening Tool
The CAGE questionnaire is a brief 4-question screening tool for alcohol dependence. It is one of the most widely used alcohol screening instruments globally, valued for its simplicity and speed.
About
The CAGE questionnaire (Cut down, Annoyed, Guilty, Eye-opener) was developed by Dr. John Ewing in 1984 as a simple 4-question screening tool for alcohol dependence. The acronym CAGE is derived from the key words in each of the four questions: (1) Have you ever felt you should Cut down on your drinking? (2) Have people Annoyed you by criticizing your drinking? (3) Have you ever felt Guilty about your drinking? (4) Have you ever had a drink first thing in the morning (Eye-opener) to steady your nerves or get rid of a hangover? Each question is scored 0 (no) or 1 (yes), yielding a total score of 0 to 4. A score of 2 or more is considered clinically significant and suggests alcohol dependence. The CAGE demonstrates good sensitivity (84-93%) and specificity (76-96%) for alcohol dependence at the cutoff of 2. The CAGE is particularly valued for its brevity — it can be administered in under one minute — making it ideal for busy clinical settings. However, the CAGE is less sensitive for detecting hazardous or harmful drinking compared to the full AUDIT because it focuses on dependence-related problems rather than consumption patterns. The CAGE is endorsed by the WHO and is widely used in primary care, hospital, and research settings around the world.
Formula
CAGE Score = Cut down + Annoyed + Guilty + Eye-opener (each 0 or 1)
The CAGE score is the simple sum of responses to the four questions, each scored 0 for "no" and 1 for "yes". Total scores range from 0 to 4. A score of 2 or higher is clinically significant and indicates probable alcohol dependence. A score of 1 should prompt further inquiry but is not diagnostic. The CAGE questions focus on alcohol-related problems rather than consumption quantity, making it complementary to consumption-based tools like AUDIT-C.
Score Interpretation
The CAGE questionnaire remains one of the most widely used alcohol screening instruments globally due to its exceptional brevity and ease of recall. Unlike consumption-based tools, CAGE specifically screens for alcohol dependence by assessing problem recognition (cut down), social consequences (annoyed), psychological impact (guilty), and physiological dependence (eye-opener). This makes it highly specific for identifying patients with established alcohol dependence who may require specialized treatment. The CAGE has been validated in diverse clinical settings including primary care, inpatient medicine, psychiatry, and emergency departments across multiple countries and cultures. Its main limitation is that it focuses on lifetime occurrence rather than recent drinking patterns, which means it may miss hazardous drinking without dependence. The CAGE is recommended by the WHO and major medical organizations as a rapid screening tool, but should be used in conjunction with consumption-based tools for comprehensive alcohol assessment.
Negative screen — 0–1
Score below 2. Alcohol dependence is unlikely.
Management: No alcohol dependence indicated. Reassess if concerns arise.
Positive screen — 2–4
Score 2 or higher. Alcohol dependence is likely. Further evaluation needed.
Management: Refer for comprehensive alcohol use disorder assessment. Provide brief intervention. Discuss treatment options.
Reference Ranges
| Population | Normal Range | Notes |
|---|---|---|
| Adults (18+ years) | 0 – 1 (Negative) | Alcohol dependence unlikely |
| Adults (18+ years) | 2 – 4 (Positive) | Alcohol dependence likely; further assessment needed |
Dr. Ahmed Abdelrahman
Dr. Ahmed is a healthcare management consultant with over 15 years of experience in clinical practice and medical education.
View medical review board & editorial policy →Example Calculation
A 52-year-old male presents to his primary care physician at his wife's request, who is concerned about his drinking habits. He reports drinking daily but minimizes the amount. On CAGE screening: Cut down: Yes (1), Annoyed: Yes (1), Guilty: Yes (1), Eye-opener: No (0). Total CAGE score = 3/4. This is a positive screen indicating probable alcohol dependence. Clinical recommendation: discuss concerns using motivational interviewing, perform comprehensive alcohol use disorder assessment, evaluate for alcohol-related medical complications (liver function tests, GGT, MCV), and consider referral to addiction medicine specialist.
Related Conditions
Related Medications
Common Mistakes
Using CAGE to screen for all alcohol problems
CAGE primarily detects alcohol dependence, not hazardous drinking. Use AUDIT-C alongside CAGE for comprehensive screening of both hazardous use and dependence.
Using CAGE as a diagnostic instrument
CAGE is a screening tool, not a diagnostic test. A positive CAGE indicates probable alcohol dependence and requires comprehensive clinical evaluation using DSM-5-TR criteria.
Assuming low CAGE score means no alcohol issues
A low CAGE score does not rule out hazardous drinking or alcohol-related harm. Consumption-based tools are needed to assess drinking patterns and quantity.
Not clarifying the CAGE questions are about lifetime experience
The CAGE asks about lifetime experience, not just recent drinking. Clarify that questions refer to "ever" in the patient's lifetime to ensure accurate responses.
Frequently Asked Questions
What does CAGE stand for?
What is a positive CAGE score?
How long does CAGE take to administer?
Can CAGE detect hazardous drinking?
Is CAGE still recommended for alcohol screening?
References
- Ewing JA. Detecting alcoholism. The CAGE questionnaire. JAMA. 1984;252(14):1905-1907. PubMed
- Mayfield D, McLeod G, Hall P. The CAGE questionnaire: validation of a new alcoholism screening instrument. Am J Psychiatry. 1974;131(10):1121-1123. PubMed
- Bernadt MW, Mumford J, Taylor C, Smith B, Murray RM. Comparison of questionnaire and laboratory tests in the detection of excessive drinking and alcoholism. Lancet. 1982;1(8267):325-328. PubMed
- Fiellin DA, Reid MC, O'Connor PG. Screening for alcohol problems in primary care: a systematic review. Arch Intern Med. 2000;160(13):1977-1989. PubMed
- World Health Organization. International Guide for Monitoring Alcohol Consumption and Related Harm. WHO; 2000.