Table 4.

Mean numbers of encounters per patient by primary diagnosis before and during the health center initiative

Year	Number of community health centers	Mental disorder			Alcohol use disorder			Drug use disorder
		Encounters	Difference	Change in N (%)	Encounters	Difference	Change in N (%)	Encounters	Difference	Change in N (%)
Before initiative
2000	730	3.28			3.62			7.01
2001	748	2.99	−.29	−9	4.42	.80	22	10.94	3.92	56
During initiativea
2002	843	2.93	−.06	−2	4.48	.07	1	8.35	−2.59	−24
2003	890	2.97	.04	1	4.83	.35	8	9.19	.84	10
2004	914	2.73	−.24	−8	4.14	−.69	−14	7.82	−1.37	−15
2005	952	2.77	.05	2	4.21	.08	2	7.97	.14	2
2006	1,002	2.82	.04	2	4.81	.59	14	7.32	−.65	−8
2007	1,067	2.92	.10	4	4.90	.09	2	7.28	−.04	−1

^aFor 2002–2007, the overall mean change was −.01 encounter (0% annual change) for mental disorders, .08 (2% annual change) for alcohol use disorders, and −.61 (−6% annual change) for drug use disorders.