Cost and utilization of health services for substance dependent women before and after the initiation of substance dependence treatment
AuthorFeeney, Elaine Ruth
MetadataShow full item record
AbstractThe purpose of this study was to examine the cost and frequency of health services utilization by substance dependent women before and after the initiation of substance dependence treatment in a Medicaid population. The specific goal of the study was to determine whether cost and frequency of health services utilization are different before and after the subject has begun substance dependence treatment. The design was a secondary analysis of the Maryland Medicaid Claims Database created by the Maryland Center for Health Program Development and Management. The sample consisted of 114 females, the total number of female Maryland Medicaid recipients age 18 or older, who were residents of Baltimore City and were new to substance dependence treatment during the first half of fiscal year 1997 for whom complete data were available. Data were selected from the database and analyzed using paired t-tests and multiple regression to test four hypotheses related to cost and frequency of health services utilization. Both frequency and cost of health services were higher in the six month period following the initiation of substance dependence treatment than for the six month period before. These findings suggest that the severity of the consequences of substance dependence for women, as reported in the literature, was demonstrated in the Maryland Medicaid population. The findings also suggest that the initiation of substance dependence treatment may have brought about a behavioral change of renewed caring for self. Further research is needed regarding the specific services utilized and documented outcomes in order to design appropriate health care delivery systems for this population.
DescriptionUniversity of Maryland, Baltimore. Nursing. Ph.D. 2000
Health Sciences, Nursing
Health Sciences, Health Care Management
Maryland Center for Health Program Development and Management
Identifier to cite or link to this itemhttp://hdl.handle.net/10713/1264
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The impact of the state of Maryland's Medicaid mental health carve-out on access-to-care for patients in a suburban health care systemCorey-Lisle, Patricia Katherine; Trinkoff, Alison M. (2000)In recent years, providing care for individuals with severe mental illness has consumed increasing state and federal financial resources, with State Medicaid systems bearing the heaviest burden. Managed care strategies have been initiated by public mental health systems as a mechanism to control expenses. The state of Maryland implemented a mental health carve-out on July 1, 1997. The purpose of the present study is to describe the effects of the carve-out on access-to-care for individuals using emergency department services in one suburban health care system. Data for this study included all episodes of emergency crisis care in pre-implementation (1996-1997) and post-implementation (1998-1999) time periods. These data were examined within the context of the Behavioral Model of Health Service Use (Andersen, 1995) to describe the interrelationships among external environment, predisposing characteristics, and enabling resources on use of health services. Use of health services was operationalized by four outcomes: disposition, length of stay, number of visits, and recidivism. There were a total of 2986 episodes, initiated by 1928 individuals. Logistic regression demonstrated that when controlling for predisposing characteristics and enabling resources, the likelihood of inpatient admission did not change after initiation of the program. Moreover, there was not a significant change in the number of emergency visits. The assessment of recidivism demonstrated that only psychotic disorders (a predisposing characteristic) were a significant predictor of 30-day repeat visits. Multiple regression models examining the impact of the carve-out on length of stay demonstrated a significant increase in the emergency department length of stay (F = 5.47, p = .05) following the implementation of the carve-out. While benefits associated with improved coordination of services might be expected with the implementation of the carve-out, there was not a change in inpatient admissions, number of emergency visits, or recidivism. Additionally, there was a significant increase in the amount of time required to assess patients and to provide an appropriate disposition. The limited study sample and data prohibit generalizability. Considering that evaluations of mental health carve-outs are limited, this study reflects that anticipated benefits have not been experienced in emergency departments.
Costs, outcomes and estimation of the cost-effectiveness of abciximab in the prevention of ischemic events over six months of follow-upReed, Shelby Ogilvie; Mullins, C. Daniel (1998)Abciximab is an antiplatelet inhibitor used in conjunction with percutaneous revascularization procedures to decrease the risk of ischemic complications such as death, nonfatal MI or subsequent revascularization procedures like angioplasty or CABG. Although the efficacy of abciximab is rarely disputed based on evidence from three large clinical trials, the cost-effectiveness of the drug when used during routine practice has been questioned since it costs approximately $1,350 per patient treated. This study was undertaken to estimate the effectiveness of abciximab in patients treated at University of Maryland Medical System (UMMS) and to estimate the incremental cost-effectiveness ratio (ICER) defined as the cost per event avoided. The composite endpoint consisted of death, MI or subsequent revascularization procedure over 6-months of follow-up. Proportional hazards regression revealed that abciximab was associated with a lower risk of ischemic events among patients with more severe angiographic morphology. Patients who received a shortened infusion of the drug (<10 hours) were at a greater risk of experiencing an event than those who received an infusion for 10-14 hours. Also, patients who underwent coronary stenting were less likely to have an event while patients with multivessel disease or a history of a percutaneous revascularization procedure were at a higher risk of experiencing an event. The cost-effectiveness analysis was performed for a subgroup of patients with more severe coronary morphology using a matched cohort design. The point estimate of the ICER revealed that it cost about $20,680 to prevent an ischemic event over six months in high-risk patients treated with abciximab. Confidence intervals for the ICER were computed using Taylor series approximation, Fieller's theorem and bootstrapping, and were graphically represented with ellipses of equal probability. Overall, the data were consistent with a wide range of plausible estimates due to a relatively small denominator in the ICER.