AUDIT‐C Questions and Scoring System	Charlson Comorbidity Index Scoring System
1. How often do you have a drink containing alcohol?	1 point
a. Never (0)	Age (per decade >40 years)
b. Monthly or less (1)	Myocardial infarction
c. 2‐4 times a month (2)	Congestive heart failure
d. 2‐3 times a week (3)	Peripheral vascular disease
e. 4 or more times a week (4)	Cerebrovascular accident or
2. How many standard drinks containing alcohol do you have on a typical day?	transient ischemic attack
a. 1 or 2 (0)	Dementia
b. 3 or 4 (1)	Chronic obstructive pulmonary disease
c. 5 or 6 (2)	Connective tissue disease
d. 7 to 9 (3)	Peptic ulcer disease
e. 10 or more (4)	Mild liver disease
3. How often do you have six of more drinks on one occasion?	Diabetes mellitus
a. Never (0)	2 points
b. Less than monthly (1)	Hemiplegia
c. Monthly (2)	Moderate to severe chronic kidney disease
d. Weekly (3)	Solid tumor without metastases
e. Daily or almost daily (4)	Leukemia
	Lymphoma
	3 points
	Moderate or severe liver disease
	6 points
	Solid tumor with metastases
	AIDS