Table 1 ASSIST V3.0: domain description, formula of each domain and domain maximum score

1A

Lifetime substance use – including alcohol & tobacco

∑ Q1a + 1b + 1c + 1d + 1e + 1f + 1g + 1h + 1i + 1j (Max Score: 30)

1B

Lifetime illicit drug use – excluding alcohol & tobacco

∑ Q1c + 1d + 1e + 1f + 1g + 1h + 1i + 1j (Max Score: 24)

2A

Global continuum of substance risk – including alcohol & tobacco

∑ Q1a – j + 2a – j + 3a – j + 4a – j + 5a – j +  6a – j + 7a – j + 8 (Max Score: 422)

2B

Global continuum of illicit drug risk – excluding alcohol & tobacco

∑ Q1c – j + 2c – j + 3c – j + 4c – j + 5c – j + 6c – j + 7c – j + 8 (Max Score: 338)

3A

Specific Substance Involvement – Tobacco (or ASSIST tobacco score)

∑ 2a + 3a + 4a + 6a + 7a (Max Score: 39)

3B

Specific Substance Involvement – Alcohol (or ASSIST alcohol score)

∑ 2b + 3b + 4b + 5b + 6b + 7b (Max Score: 39)

3C

Specific Substance Involvement – Cannabis (or ASSIST cannabis score)

∑ 2c + 3c + 4c + 5c + 6c + 7c (Max Score: 39)

3D

Specific Substance Involvement – Cocaine (or ASSIST cocaine score)

∑ 2d + 3d + 4d + 5d + 6d + 7d (Max Score: 39)

3E

Specific Substance Involvement -ATS (or ASSIST ATS score)

∑ 2e + 3e + 4e + 5e + 6e + 7e (Max Score: 39)

3F

Specific Substance Involvement – Inhalants (or ASSIST inhalants score)

∑ 2f + 3f + 4f + 5f + 6f + 7f (Max Score: 39)

3G

Specific Substance Involvement – Sedatives (or ASSIST sedatives score)

∑ 2g + 3g + 4g + 5g + 6g + 7g (Max Score: 39)

3H

Specific Substance Involvement – Hallucinogens (or ASSIST hallucinogen score)

∑ 2h + 3h + 4h + 5h + 6h + 7h (Max Score: 39)

3I

Specific Substance Involvement – Opioids (or ASSIST opioid score)

∑ 2i + 3i + 4i + 5i + 6i + 7i (Max Score: 39)

3J

Specific Substance Involvement – Other

∑ 2j + 3j + 4j + 5j + 6j + 7j (Max Score: 39)

4A

Total Current Frequency of Substance Use – including alcohol, *excluding tobacco & ‘other drugs’

∑ Q2b – i (Max Score: 48)

4B

Total Current Frequency of Illicit Drug Use – *excluding alcohol, tobacco & ‘other drugs’

∑ Q2c – i (Max Score: 42)

4C

Current Frequency alcohol use

Q2b (Max Score: 6)

4D

Current Frequency cannabis use

Q2c (Max Score: 6)

4E

Current Frequency cocaine use

Q2d (Max Score: 6)

4F

Current Frequency amphetamine use

Q2e (Max Score: 6)

4G

Current Frequency inhalant use

Q2f (Max Score: 6)

4H

Current Frequency sedative use

Q2g (Max Score: 6)

4I

Current Frequency hallucinogen use

Q2h (Max Score: 6)

4J

Current Frequency opioid use

Q2i (Max Score: 6)

5A

Dependence – all substances including alcohol & tobacco

∑ Q1a – j + 2a – j + 3a – j + 6a – j + 7a – j (Max Score: 270)

5B

Dependence – illicit drugs excluding alcohol & tobacco

∑ Q1c – j + 2c – j + 3c – j + 6c – j + 7c – j (Max Score: 216)

6A

Abuse – all substances including alcohol & tobacco

∑ Q1a – j + 2a – j + 4a – j + 5a – j + 6a – j (Max Score: 300)

6B

Abuse – illicit drugs, excluding alcohol & tobacco

∑ Q1c – j + 2c – j + 4c – j + 5c – j + 6c – j (Max Score: 240)