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AUDIT-C

Brief screening tool for unhealthy alcohol use and alcohol use disorders

Indication

  • Brief screening tool for unhealthy alcohol use and alcohol use disorders

Criteria

  • id: frequency; label: How often do you have a drink containing alcohol?; type: options; options: label: Never; value: 0; label: Monthly or less; value: 1; label: 2-4 times/month; value: 2; label: 2-3 times/week; value: 3; label: 4+ times/week; value: 4
  • id: quantity; label: How many standard drinks on a typical drinking day?; type: options; options: label: 1-2; value: 0; label: 3-4; value: 1; label: 5-6; value: 2; label: 7-9; value: 3; label: 10+; value: 4
  • id: binge; label: How often do you have 6+ drinks on one occasion?; type: options; options: label: Never; value: 0; label: Less than monthly; value: 1; label: Monthly; value: 2; label: Weekly; value: 3; label: Daily or almost daily; value: 4

Interpretation

  • function(score) { if (score <= 2) return { risk: score + '/12', tier: 'Low Risk', action: 'Low likelihood of alcohol use disorder. No intervention needed.', color: 'green' }; if (score <= 5) return { risk: score + '/12', tier: 'Moderate Risk', action: 'At-risk drinking. Brief intervention recommended. Consider full AUDIT.', color: 'yellow' }; return { risk: score + '/12', tier: 'High Risk', action: 'Likely alcohol use disorder. Further evaluation needed. Consider referral and full AUDIT.', color: 'red' }; }

Clinical pearls

  • Positive screen: ≥4 for men, ≥3 for women
  • AUDIT-C 7+ highly specific for active alcohol dependence
  • Brief interventions (FRAMES model) shown to reduce drinking by 10-30% at 12 months

Source and review

  • Bush et al., Arch Intern Med 1998. Last reviewed: 2024-11-01