Table 1: Coding Scheme and Descriptive Statistics
Individual Data (N=6,042)
Dependent Variables
	Methamphetamine Use	Positive UA for Methamphetamine = 1	24.0%
		Negative  UA for methamphetamine = 0	76.0%
	Methamphetamine/Marijuana	Negative UA for Both = 1	46.3%
		Positive Methamphetamineand Marijuana = 2	11.3%
		Positive Marijuana, Negative Methamphetamine = 3	29.7%
		Positive Methamphetamine, Negative Marijuana = 4	12.7%
	Methamphetamine/Cocaine	Negative UA for Both = 1	50.5%
		Positive Methamphetamine and Cocaine = 2	4.1%
		Positive Cocaine, Negative Methamphetamine = 3	25.5%
		Positive Methamphetamine, Negative Cocaine = 4	19.9%
	Methamphetamine/Opiates	Negative UA for Both = 1	71.8%
		Positive Opiates and Methamphetamine	1.3%
		Positive Opiates, Negative Methamphetamine = 3	4.2%
		Positive Methamphetamine, Negative Opiates = 4	22.6%
Independent Variables
	Race/ethnicity	Separate dummy variables for race/ethnicity;
		Whites are reference category
	White		43.8%
	Black		10.8%
	Hispanic		40.1%
	Native American		5.3%
	Age	Age at arrest	x = 30.86, S.D. = 9.97
	Less than High School Education	Not a high school graduate = 1	32.1%
		High school graduate = 0	67.9%
	Married	Married = 1	22.4%
		Not Married = 0	77.1%
	Unemployed	Unemployed = 1	24.1%
		Employed = 0	75.9%
	Most Serious Arrest Charge	Violent offense = 1	28.7%
		Non-violent =0	71.3%
	Prior Arrest	Yes = 1	83.2%
		No = 0	16.8%
Community Data (N=147 )
	County	Maricopa County = 1	71.3%
		Pima County = 0	28.7%
	Percent College Education	Percent of residents with College as their highest education level	x = .54, S.D. = .18
	Percent High School Education	Percent of residents with High School as their highest education level	x = .25, S.D. = .08
	Unemployment Rate	Rate of all labor force classified as unemployed	x = .06, S.D. = .05
	Heterogeneity	Racial/Ethnic Heterogeneity	x = .40, S.D. = .15
	Spanish-Speaking Households	Percent of Households in which Spanish is the primary languge spoken	x = .20, S.D. = .17