Table 2 Patient Substance Abuse Characteristics.

Age of onset amphetamine abuse

21.4 (7.4)

Amphetamine usage (y.i.l.)

13.3 (8.6)

Intravenous usage (73.8%)¹ (y.i.l.)

8.8 (9.6)

Amphetamine abstinent weeks before MR-scan

7.6 (10.2)

Age of onset any alcohol²

16.2 (4.0)

Any alcohol use (y.i.l.)

9.4 (9.8)

Age of onset heavy alcohol³

16.6 (4.6)

Heavy alcohol use (y.i.l.)

8.6 (10.2) y.i.l

Nicotine use

90.0%

Heroin (y.i.l.)

0.1 (0.4)

Pain relievers (opiates or equivalent) (y.i.l.)

1.1 (4.4)

Benzedrine (y.i.l.)

1.4 (4.5)

Cocaine (y.i.l.)

0.6 (1.8)

Cannabis (y.i.l.)

5.1 (6.5)

Hallucinogenics (y.i.l.)

0.5 (1.7)

Inhalants (y.i.l.)

0.3 (1.3)

Multiple drug use (y.i.l.)

6.6 (9.5)