numeric:

for SUBS_ID = ALCC and SUBS_SPEC = FRE

• 0 = never
• 1 = monthly or less
• 2 = 2-4 times a month
• 3 = 2-3 times per week
• 4 = ≥4 times per week

for SUBS_ID = ALCC and SUBS_SPEC = QUA

• 0 = 0-2 drinks
• 1 = 3-4 drinks
• 2 = 5-6 drinks
• 3 = 7-9 drinks
• 4 = ≥10 drinks

for SUBS_ID = ALCC and SUBS_SPEC = EXE

• 0 = never
• 1 = less than monthly
• 2 = monthly
• 3 = weekly
• 4 = daily or almost daily

for SUBS_ID = ALCC and SUBS_SPEC = ACSUM

Sum of the AUDIT-C score (0-12)