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Participation in Accountable Care Organizations Among Hospitals Offering Substance Use Disorder and Mental Health Services.

ABSTRACT: Accountable care organizations (ACOs) can potentially improve value in behavioral health care. However, little is known about the likelihood of ACO participation among hospitals with behavioral health services. The authors explore statistical predictors of ACO participation among hospitals, particularly among those offering behavioral health services. After adjusting for other hospital characteristics, the analysis found that behavioral health specialty hospitals were less likely to participate in an ACO and general medical-surgical hospitals with behavioral health services were more likely to participate, compared with general medical-surgical hospitals without behavioral health services. A better understanding is needed of barriers to ACO participation within behavioral health specialty hospitals and how ACO participation may affect quality of behavioral health care.

SUBMITTER: McDowell MJ

PROVIDER: S-EPMC6395515 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Participation in Accountable Care Organizations Among Hospitals Offering Substance Use Disorder and Mental Health Services.

McDowell Michal J MJ Busch Alisa B AB Sen Aditi P AP Stuart Elizabeth A EA Riedel Lauren L Barry Colleen L CL Huskamp Haiden A HA

Psychiatric services (Washington, D.C.) 20180828 11

Accountable care organizations (ACOs) can potentially improve value in behavioral health care. However, little is known about the likelihood of ACO participation among hospitals with behavioral health services. The authors explore statistical predictors of ACO participation among hospitals, particularly among those offering behavioral health services. After adjusting for other hospital characteristics, the analysis found that behavioral health specialty hospitals were less likely to participate ...[more]

PMID: 30152270

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Project description:ImportanceThe benefits of public payment policy may extend to private populations through "spillover" effects. If cost-saving efforts in Medicare also reduce costs among commercially insured patients, Medicare payment systems could be a versatile policy tool in future reform efforts.ObjectivesTo determine whether physicians who participated in a Medicare Accountable Care Organization (ACO) reduced spending among their commercial patients.DesignThis was a retrospective, longitudinal study which was conducted using Blue Cross Blue Shield of Michigan (BCBSM) claims data from 2010 to 2015. We compared patients seen by physicians who participated in a Medicare ACO to patients whose physicians were not part of an ACO. We used a difference-in-differences (DIDs) design to test whether physician participation in an ACO was associated with reduced spending among their commercially insured patients. We also tested for heterogeneous effects: we assessed whether spillovers were larger among patients with clinical conditions (acute myocardial infarction, pneumonia, congestive heart failure) that have previously been targeted by Medicare payment programs.SettingThis was a population-based study of commercially insured patients in Michigan.ParticipantsPatients who experienced a significant clinical episode (eg, labor and delivery, acute myocardial infarction) between 2010 and 2015.ExposureOur patient-level exposure is treatment by a Medicare ACO-affiliated physician.Main outcomes and measuresMedical spending of 0-90 days and 91-365 days after a clinical episode.ResultsPatients in the exposure group (n=54,750) and in the control group (n=137,883) were similar in demographic characteristics of age, sex, and type of clinical episodes. Adjusted mean 90-day spending in the preexposure period was $21,292 among the exposure group and $21,157 among the comparison group; these means declined to $21,250 and $20,995 in the postperiod, yielding a DIDs estimate of $119 [95% confidence interval (CI), -$170 to $408]. Adjusted means for 91-365 days spending in the preperiod were $4258 among the exposure group and $4251 among the comparison group; these means rose to $4338 and $4421 in the postperiod, yielding a DIDs estimate of -$90 (95% CI, -$312 to $132). We also separately examined patients with conditions that have been targeted by other Medicare payment programs. Among these patients, 90-day spending did not differ between exposure and comparison groups (DIDs, -$223; 95% CI, -$2037 to $1591), although 91-365 days spending decreased among the exposure group with marginal statistical significance (DIDs, -$1160; 95% CI, -$2459 to $140).Conclusions and relevancePhysicians who participated in Medicare ACOs did not reduce spending among most of their commercially insured patients. Medicare policy is unlikely to confer significant spillover benefits to the commercially insured population.

Project description:ImportanceThirty percent of Medicare accountable care organizations (ACOs) in the Shared Savings Program (SSP) have exited within five years of joining. Absent the potential for shared savings, exiting ACOs may choose to divest from costly resources needed to support population health, worsening clinical quality for beneficiaries aligned to these organizations.ObjectiveTo examine the associations of SSP exit with clinical quality.Design setting and participantsBetween 2019 and 2020 we conducted a retrospective cohort study with national Medicare claims from a 20% random sample of beneficiaries. We identified 1,713,237 beneficiaries aligned with an SSP ACO at some point between 2012 and 2016. We distinguished between those for whom the ACO to which they were aligned exited the SSP and those whose ACO stayed in the program. Comparing exiting ACOs with those who stayed in the SSP, we evaluated changes in the quality of care that a beneficiary received before and after the aligned ACO exited the SSP. We also examined whether findings associated with exit varied with respect to the number of years after exit.ExposuresSSP exit and the number of years after exit.Main outcomes and measuresAnnual preventive care services receipt and hospital utilization.ResultsThe cohort of 1,713,237 individuals (mean [standard deviation] age at enrollment: 75.20 [7.96] years) included 998,511 (58.3%) female, 126,123 (7.4%) Black, and 1,482,823 white (86.6%) beneficiaries. SSP exit was associated with significantly lower rates of annual glycated hemoglobin testing (odds ratio [OR], 0.74; 95% confidence interval [CI], 0.68 to 0.81), low-density lipoprotein cholesterol testing (OR, 0.86; 95% CI, 0.76 to 0.97), and all diabetes complication screening (OR, 0.90; 95% CI, 0.81 to 0.97), for beneficiaries with diabetes. The exit was not related to rates of hospital utilization, in terms of emergency department utilization and 30-day readmission after SSP exit. The associations with exit depended on the length of time since contracts end. For example, the baseline rate of annual glycated hemoglobin testing was 89.8% (95% CI, 89.5% to 90.1%) but fell to 86.9% (95% CI, 85.9% to 88.0%) and 86.8% (95% CI, 85.0% to 88.5%) in years 1 and 2 after exit, respectively, but it then rose to 91.9% (95% CI, 85.3% to 98.5%) in year 3.Conclusions and relevanceIn this cohort study of Medicare beneficiaries, SSP exit was associated with modest declines in clinical quality. These findings were timely given recent SSP changes that could accelerate program exit.

Dataset Information

Participation in Accountable Care Organizations Among Hospitals Offering Substance Use Disorder and Mental Health Services.

Publications

Participation in Accountable Care Organizations Among Hospitals Offering Substance Use Disorder and Mental Health Services.

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