Adoption of practice guidelines and assessment tools in substance abuse treatment

Table 2 Comparisons of differences between the two time points of measurement

Variable^a	1997 (N = 281)^c		2001(N = 246)^c
	Mean	SD	Mean	SD	Sig. tests	P-value
% with Managed Care Involvement^b	77.07% (266)	-	73.73% (217)		z = -.659	n.s.
% using Practice Guidelines^b	66.65% (278)	-	75.33% (223)	-	z = 1.852	p < .10
% using Practice ASAM^b	44.96% (278)	-	43.94% (217)	-	z = -.133	n.s
% of Staff in Recovery^c	32.00% (266)	30.11	27.30% (221)	29.27	F(1,486) = 2.98	n.s.
Counseling Services (Number of)	4.93 (278)	1.52	5.17 (223)	1.38	F(1,499) = 3.18	n.s.
Medication Services (Number of)	0.49 (278)	0.99	2.82 (223)	1.94	F(1,499) = 302.58	p < .0001
Medical Services (Number of)	0.51 (278)	1.31	2.54 (223)	1.21	F(1,499) = 509.03	p < .0001
Ancillary Services (Number of)	0.54 (278)	0.94	0.69 (223)	0.89	F(1,499) = 3.48	n.s.
Clients served per week	119.00 (272)	238.03	189.80 (221)	925.36	F(1,490) = 1.47	n.s.

^aValue in parentheses is the n for each variable.
^bThis designates a binomial variable. The percentage is the number of clinics that have this characteristic. Test statistic used was a z test of two proportions.
^cThis is a mean of the percent of staff in recovery for each clinic.

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