Table 4. Patterns of continuing care over time among 991 initial substance abuse treatment participants in a private managed care plan.

	1 year (N=945)		5 years (N=926)		7 years (N=839)		9 years (N=787)
Type of care	N	%	N	%	N	%	N	%
Receives yearly primary care	465	49	48	5	417	50	381	48
Without problems at prior time point or readmitted to substance abuse treatment as needed	502	53	527	57	424	51	340	43
Without problems at prior time point or receives psychiatric services as needed	312	33	744	80	608	72	521	66
Receives continuing care	127	13	23	2	130	15	114	15