AUDIT-C (Alcohol Use Disorders Identification Test – Consumption) is a 3-item alcohol screening questionnaire derived from the first three items of the full AUDIT. It assesses drinking frequency, typical quantity, and heavy episodic drinking to identify hazardous or harmful alcohol use.

What is a positive AUDIT-C score?

A score of ≥4 in men or ≥3 in women is considered a positive screen for hazardous or harmful drinking, with sensitivity of 86-97%. The lower threshold for women reflects their greater vulnerability to alcohol harm at lower consumption levels.

How is AUDIT-C scored?

Each of the 3 items is scored 0-4, giving a total range of 0-12. Question 1 asks about drinking frequency, question 2 about typical drinks per occasion, and question 3 about frequency of consuming 6 or more drinks in one sitting.

What should happen after a positive AUDIT-C?

A positive result should prompt completion of the full 10-item AUDIT for detailed assessment, followed by a brief motivational intervention (BI) for hazardous drinkers. Cochrane evidence shows brief interventions reduce alcohol consumption by 20-30%.

How does AUDIT-C differ from the full AUDIT?

AUDIT-C uses only the first 3 consumption items of AUDIT. It is faster (1-2 minutes) but less comprehensive. A positive AUDIT-C should trigger the full 10-item AUDIT, which additionally captures alcohol-related harm and dependence symptoms.

Does AUDIT-C diagnose alcohol use disorder?

No. AUDIT-C is a screening tool that identifies hazardous drinking patterns — not a diagnostic instrument. DSM-5 alcohol use disorder diagnosis requires clinical assessment of 11 criteria including tolerance, withdrawal, and impaired control.

What is a standard drink for AUDIT-C purposes?

One US standard drink equals 14 grams of pure ethanol: 12 oz regular beer (5%), 5 oz wine (12%), or 1.5 oz distilled spirits (40%). Patients should be informed of this definition before answering quantity questions, as serving sizes vary widely.

Is AUDIT-C recommended by clinical guidelines?

Yes. The USPSTF (Grade B, 2018) recommends alcohol misuse screening for all adults using validated tools. NIAAA's 2023 guide endorses AUDIT-C as the preferred brief screening tool for primary care settings.

How sensitive is AUDIT-C for hazardous drinking?

AUDIT-C demonstrates sensitivity of 86-97% and specificity of 60-89% for hazardous or harmful drinking, varying by population and threshold. It performs comparably to the full AUDIT for detecting hazardous consumption patterns.

What is SBIRT and how does AUDIT-C fit?

SBIRT (Screening, Brief Intervention, and Referral to Treatment) is an evidence-based framework for alcohol and substance use. AUDIT-C serves as the 'S' (screening) step — a positive result triggers brief intervention (BI) and, when needed, referral to specialty treatment.

Can patients self-administer AUDIT-C?

Yes. AUDIT-C is validated for self-administration on paper or digital tablet, and self-report may improve honesty compared to face-to-face questioning. It can be integrated into patient intake forms or electronic health record portals.

How does moderate drinking compare to AUDIT-C thresholds?

US guidelines define moderate drinking as up to 1 drink/day for women and 2/day for men. AUDIT-C positive screens identify consumption above these levels, indicating hazardous drinking associated with increased risk of health harm.

Online Medical Tools — AUDIT-C

Printed on 9/3/2026

For informational purposes only. This is not medical advice.

Mental Health

AUDIT-C

AUDIT-C is the consumption-focused short form of AUDIT using the first three alcohol-use items. It is widely used in primary care, emergency, and inpatient workflows for fast first-line screening.

Formula: AUDIT-C total = Q1 + Q2 + Q3 (0-12). Common positive: men >=4, women >=3.

Sex

How often do you have a drink containing alcohol?

How many drinks on a typical drinking day?

How often do you have 6+ drinks on one occasion?

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How It Works

Answer 3 Consumption Questions

The patient answers 3 questions about their past year alcohol use: how often they drink, how many drinks on a typical drinking day, and how often they have 6 or more drinks on one occasion. Each item is scored 0-4.

Sum the Score (0–12)

Add the three item scores to produce the AUDIT-C total (maximum 12). Higher scores reflect more frequent and heavier drinking patterns.

Apply Sex-Specific Thresholds

A score of ≥4 in men or ≥3 in women constitutes a positive screen for hazardous or harmful drinking (sensitivity 86–97%). A positive result should trigger full AUDIT and brief motivational intervention.

Who Uses the AUDIT-C

Primary Care Annual Wellness

Primary Care Physicians

USPSTF Grade B recommends alcohol screening for all adults. AUDIT-C is the fastest validated tool for integrating alcohol screening into routine annual wellness visits.

Pre-Operative Assessment

Surgeons & Anesthesiologists

Identifying hazardous drinking preoperatively reduces surgical complications, alcohol withdrawal risk, and post-operative delirium. AUDIT-C is the preferred brief pre-op screen.

Emergency Department SBIRT

Emergency Medicine Clinicians

Screening, Brief Intervention, and Referral to Treatment (SBIRT) in the ED reduces alcohol consumption and injury recurrence. AUDIT-C is widely used as the first-step screening component.

Mental Health Intake Screening

Psychiatrists & Psychologists

Alcohol use disorder co-occurs with depression, anxiety, and PTSD at high rates. AUDIT-C at intake identifies this critical comorbidity before treatment planning.

Occupational Health Screening

Occupational Health Nurses

Workplace alcohol screening programs use AUDIT-C to identify employees at risk for hazardous drinking impacting safety and productivity, guiding employee assistance program referrals.

Pro Tips

AUDIT-C Is the First 3 Items of Full AUDIT

AUDIT-C comprises the consumption subscale (items 1-3) of the full 10-item AUDIT questionnaire. A positive AUDIT-C should trigger administration of the complete AUDIT for more detailed assessment of alcohol-related harm and dependence.

Brief Interventions Reduce Drinking by 20-30%

Cochrane review (Kaner et al., 2018) demonstrates that brief interventions following a positive screen reduce alcohol consumption by 20-30%. AUDIT-C screening without follow-up intervention misses this evidence-based benefit.

USPSTF Grade B Recommendation

The U.S. Preventive Services Task Force gives alcohol misuse screening a Grade B recommendation for all adults 18 and older in primary care — meaning clinicians should routinely screen using a validated tool like AUDIT-C.

Standard Drink Definition Matters

One US standard drink = 14g pure ethanol = 12 oz regular beer (5% ABV), 5 oz wine (12% ABV), or 1.5 oz distilled spirits (40% ABV). Patients often underestimate how much they drink because of non-standard serving sizes — clarify this before scoring.

Sex-Specific Thresholds Are Essential

Using the male threshold (≥4) for all patients misses hazardous drinking in women. The lower female threshold (≥3) reflects greater vulnerability to alcohol-related harm at lower consumption levels due to body composition differences in alcohol metabolism.

Non-Judgmental Framing Improves Accuracy

Patients significantly underreport alcohol use when they perceive stigma. Introduce AUDIT-C as 'routine health questions we ask everyone' rather than 'alcohol screening', and use open, neutral language to improve disclosure accuracy.

AUDIT-C Is Not Diagnostic for AUD

A positive AUDIT-C indicates hazardous or harmful drinking patterns — not an alcohol use disorder diagnosis. DSM-5 criteria (11 diagnostic items across 12 months) require clinical assessment by a trained provider.

Tablet or Paper Self-Administration Is Valid

AUDIT-C is validated for self-administration on paper or digital tablet, which may improve honesty of responses compared to face-to-face verbal questioning. Integrate into intake forms or patient portals where possible.

Alcohol Screening Varies Internationally

AUDIT-C was derived from the AUDIT, which was developed for international use. Standard drink sizes and low-risk drinking limits differ by country — the WHO global threshold is different from US NIAAA thresholds. Clarify national guidelines when using internationally.

Common Questions About Your Results

Evidence-Based Methodology

AUDIT-C derived from AUDIT (Saunders et al., Addiction 1993) by Bush et al. (Arch Intern Med 1998). Sensitivity 86-97%, specificity 60-89% for hazardous drinking depending on population and threshold. USPSTF Grade B recommendation for alcohol misuse screening (2018). Cochrane review of brief interventions (Kaner et al., 2018): 20-30% reduction in alcohol consumption. NIAAA 2023 Helping Patients Who Drink Too Much guide recommends AUDIT-C for primary care screening.

Clinical Content Trust

Last reviewed:: April 21, 2026
Guideline version:: General evidence framework v2026.04
Source set version:: Primary-source set v1

How to Interpret Your Result

Higher scores indicate greater likelihood of hazardous alcohol-use patterns and support deeper alcohol-use evaluation.

When to Use This Tool

Use when quick alcohol-risk stratification is needed before deciding whether to run full AUDIT or broader substance assessment.

Limitations

AUDIT-C focuses on consumption and does not directly measure dependence severity, consequences, or multi-substance patterns without follow-up.

Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.

Changelog

April 21, 2026 · trust-baseline
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