Table 2.

Association between state unemployment rate and annual admissions to substance abuse treatment facilities in economic downward and upward trends

Mode 4		Baseline model: state unemployment rate	State unemployment rate in periods when it is higher than the prior period	State unemployment rate in periods when it is lower than the prior period
Opiates	$\widehat{\beta }$	0.005	0.004	−0.001
	SE($\widehat{\beta }$)	0.008	0.008	0.010
	p-value	0.54	0.61	0.90
Cocaine	$\widehat{\beta }$	−0.004	−0.009	− 0.037
	SE($\widehat{\beta }$)	0.009	0.009	0.011
	p-value	0.64	0.35	<.001
Alcohol	$\widehat{\beta }$	0.026	0.025	0.020
	SE($\widehat{\beta }$)	0.007	0.007	0.008
	p-value	<.001	<.001	0.01
Marijuana/hashish	$\widehat{\beta }$	0.006	0.005	−0.004
	SE($\widehat{\beta }$)	0.009	0.009	0.010
	p-value	0.49	0.59	0.68
Stimulants	$\widehat{\beta }$	−0.067	−0.070	−0.092
	SE($\widehat{\beta }$)	0.010	0.010	0.012
	p-value	<.001	<.001	<.001
Other drugs	$\widehat{\beta }$	0.049	0.049	0.048
	SE($\widehat{\beta }$)	0.010	0.010	0.012
	p-value	<.001	<.001	<.001

p < 0.05 is presented in bold