In an era of cost containment and accumulating clinical evidence that outpatient treatment for substance abuse may be as effective as inpatient treatment, the effectiveness and cost of various levels of intensity of outpatient treatment has not been assessed. Especially given the range and severity of problems commonly found among substance abuse clients, a question remains of what is the optimum intensity of services for rehabilitation and whether this differs by gender, by ethnicity, by primary type of substance used, and by mental health status. To this end, the present study proposes a controlled, random assignment comparison of day hospital outpatient treatment and traditional outpatient treatment in a heterogeneous population of a large health maintenance organization's (HMO) substance abuse program. The study has the following goals: 1) to compare the effects of day hospital treatment and traditional outpatient treatment on early drop out rates, length of stay, and substance use during treatment. 2) to compare the effectiveness of day hospital and traditional outpatient treatment as measured by level of substance use and abstention, level of psychosocial functioning, and utilization of other medical services (including inpatient care, varieties of outpatient treatment, emergency/crisis visits, medications, and laboratory testing). 3) to compare the costs of day hospital and traditional outpatient treatment and assess their cost effectiveness. 4) to determine the patient characteristics associated with successful treatment outcome in both programs; in particular, gender, ethnicity, primary drug preference, and psychiatric severity. 5) to determine the characteristics of treatment associated with successful treatment outcome in both programs; in particular, service intensity and service mix.

Agency
National Institute of Health (NIH)
Institute
National Institute on Drug Abuse (NIDA)
Type
Research Project (R01)
Project #
5R01DA008728-03
Application #
2121412
Study Section
Special Emphasis Panel (SRCD (44))
Project Start
1993-09-30
Project End
1997-07-31
Budget Start
1995-08-01
Budget End
1996-07-31
Support Year
3
Fiscal Year
1995
Total Cost
Indirect Cost
Name
Kaiser Foundation Research Institute
Department
Type
DUNS #
City
Oakland
State
CA
Country
United States
Zip Code
94612
Chi, Felicia W; Weisner, Constance; Grella, Christine E et al. (2014) Does age at first treatment episode make a difference in outcomes over 11 years? J Subst Abuse Treat 46:482-90
Witbrodt, Jane; Ye, Yu; Bond, Jason et al. (2014) Alcohol and drug treatment involvement, 12-step attendance and abstinence: 9-year cross-lagged analysis of adults in an integrated health plan. J Subst Abuse Treat 46:412-9
Parthasarathy, Sujaya; Chi, Felicia W; Mertens, Jennifer R et al. (2012) The role of continuing care in 9-year cost trajectories of patients with intakes into an outpatient alcohol and drug treatment program. Med Care 50:540-6
Sterling, Stacy; Chi, Felicia; Hinman, Agatha (2011) Integrating care for people with co-occurring alcohol and other drug, medical, and mental health conditions. Alcohol Res Health 33:338-49
Chi, Felicia W; Parthasarathy, Sujaya; Mertens, Jennifer R et al. (2011) Continuing care and long-term substance use outcomes in managed care: early evidence for a primary care-based model. Psychiatr Serv 62:1194-200
Chou, Chih-Ping; Chi, Felicia; Weisner, Constance et al. (2010) Initial Status in Growth Curve Modeling for Randomized Trials. J Drug Issues 40:155-172
Weisner, Constance; Hinman, Agatha; Lu, Yun et al. (2010) Addiction treatment ultimatums and U.S. health reform: A case study. Nordisk Alkohol Nark 27:685-698
Chi, Felicia W; Weisner, Constance M (2008) Nine-year psychiatric trajectories and substance use outcomes: an application of the group-based modeling approach. Eval Rev 32:39-58
Satre, Derek D; Blow, Frederic C; Chi, Felicia W et al. (2007) Gender differences in seven-year alcohol and drug treatment outcomes among older adults. Am J Addict 16:216-21
Parthasarathy, Sujaya; Weisner, Constance M (2005) Five-year trajectories of health care utilization and cost in a drug and alcohol treatment sample. Drug Alcohol Depend 80:231-40

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