Health‐Care Service Utilization in Substance Abusers Receiving Contingency Management and Standard Care Treatments

Addiction, 2012, vol 107: pp. 1462–1470. doi:10.1111/j.1360-0443.2012.03831.x

Posted: 8 Aug 2016

See all articles by Todd Olmstead

Todd Olmstead

Yale University - School of Public Health

Jeffrey Cohen

University of Connecticut - School of Business

Nancy M. Petry

University of Connecticut - School of Medicine

Date Written: 2014

Abstract

Aim: To determine the impact of standard care and contingency management treatments on the utilization of general health-care services by substance abusers.

Participants, design and measurements: This secondary analysis pooled 1028 treatment-seeking substance abusers from five randomized clinical trials that compared the effects of standard care (SC, n = 362) to standard care plus contingency management (CM, n = 666). In each trial, subjects in the CM condition showed significantly greater reductions in substance use than their SC counterparts. For each subject, utilization of 15 general health-care services was measured 1 year prior to treatment intake and up to 9 months following treatment intake. Post-intake utilization data were prorated to be comparable to the 1-year pre-intake data. Paired t-tests evaluated changes in service utilization pre- and post-intake, and difference-in-differences regression models were used to estimate the impact of CM, compared to SC, on changes in the utilization of each of the 15 health services.

Setting: Out-patient community substance abuse clinics in Connecticut and Massachusetts, USA.

Findings: Utilization of several types of out-patient services increased significantly between the pre- and post-intake periods [e.g. dental visits (0.47, P < 0.001), community health center visits (0.50, P < 0.001), visits to a mental health professional office (1.03, P = 0.001)], while in-patient hospital care for mental health problems decreased significantly (−3.50 nights, P < 0.001). A substantial portion of these changes occurred during the treatment period. No significant differences were found between the two treatment conditions.

Conclusions: Initiating out-patient substance abuse treatment is associated with changes in general health-care service utilization, independent of the type of treatment offered.

Keywords: substance abuse treatment, contingency management

JEL Classification: I1

Suggested Citation

Olmstead, Todd and Cohen, Jeffrey and Petry, Nancy M., Health‐Care Service Utilization in Substance Abusers Receiving Contingency Management and Standard Care Treatments (2014). Addiction, 2012, vol 107: pp. 1462–1470. doi:10.1111/j.1360-0443.2012.03831.x, Available at SSRN: https://ssrn.com/abstract=2819618

Todd Olmstead

Yale University - School of Public Health ( email )

PO Box 208034
60 College Street
New Haven, CT 06520-8034
United States

Jeffrey Cohen (Contact Author)

University of Connecticut - School of Business ( email )

368 Fairfield Road
Storrs, CT 06269-2041
United States

Nancy M. Petry

University of Connecticut - School of Medicine ( email )

263 Farmington Ave.
Dept. of Psychiatry
Farmington, CT 06030-2103
United States

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