. Author manuscript; available in PMC: 2008 Jul 8.

Published in final edited form as: J Drug Issues. 2007;37(3):717–736. doi: 10.1177/002204260703700311

Table 2. Substance Use Characteristics (N=213).

	Used in Last 30 Days	Ever Used	First drug injected	Ever Injected
Alcohol	89.7%	99.1%	0.5%	0.5%
Marijuana	80.8%	99.1%	-	-
Heroin	44.6%	85.4%	44.6%	80.3%
Cocaine	41.3%	95.8%	14.1%	69.5%
Crack	38.0%	83.1%	-	36.2%
Ketamine	32.9%	100.0%	15.5%	100.0%
Methamphetamine	31.9%	90.7%	18.3%	63.8%
Inhalants	16.0%	85.6%	-	-
Speedball	13.6%	66.3%	1.4%	58.7%
LSD	10.8%	90.1%	-	16.0%
Mushrooms	9.9%	92.7%	-	4.7%
Ecstasy	8.9%	84.0%	-	17.4%
Trypt/Phen ^*	6.5%	59.6%	0.5%	4.2%
PCP	2.8%	55.9%	-	5.2%
GHB	1.9%	34.7%	-	0.9%
Prescription Drugs	N/A	95.8%	2.3%	N/A

Tryptamines/Phenethylamines include a variety of hallucinogens, such as DMT, AMT, 2C-T-7, 5-MEO-DIPT, peyote and mescaline.

Missing data: