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Featured researches published by Allison Barrett.


Psychiatric Services | 2013

Medication Continuity Among Medicaid Beneficiaries With Schizophrenia and Bipolar Disorder

Jonathan D. Brown; Allison Barrett; Emily Caffery; Kerianne Hourihan; Henry T. Ireys

OBJECTIVE This study was conducted to examine whether medication continuity among Medicaid beneficiaries with schizophrenia and bipolar disorder was associated with medication utilization management practices (prior authorization, copayment amounts, and refill and pill quantity limits), managed care enrollment, and other state and beneficiary characteristics. METHODS With 2007 Medicaid Analytic Extract claims data from 22 states, random-effects logistic regression modeled the odds of high medication continuity, defined as receiving medications for at least 80% of the days enrolled in Medicaid, among beneficiaries ages 18-64 with a diagnosis of schizophrenia (N=91,451) or bipolar disorder (N=33,234). RESULTS Sixty-four percent of beneficiaries with schizophrenia and 54% of beneficiaries with bipolar disorder had high medication continuity. Medication continuity was worse among beneficiaries with schizophrenia in states that required prior authorization for antipsychotics,


Psychiatric Services | 2010

Medicaid Beneficiaries Using Mental Health or Substance Abuse Services in Fee-for-Service Plans in 13 States, 2003

Henry T. Ireys; Allison Barrett; Jeffrey A. Buck; Thomas W. Croghan; M.P.P. Melanie Au; M.S.W. Judith L. Teich

2-


Mathematica Policy Research Reports | 2012

Evidence-Based Practices for Medicaid Beneficiaries with Schizophrenia and Bipolar Disorder

Jonathan D. Brown; Allison Barrett; Henry T. Ireys; Emily Caffery; Kerianne Hourihan

3 copayments for generic medications, or


Mathematica Policy Research Reports | 2011

Reducing Hospital Readmissions in New York State: A Simulation Analysis of Alternative Payment Incentives

Deborah Chollet; Allison Barrett; Timothy K. Lake

1 copayments for branded medications (compared with no copayments). For beneficiaries with bipolar disorder, medication continuity was worse among those in states with more prior-authorization requirements for different classes of medications or


Mathematica Policy Research Reports | 2010

OAA Title III Services Target the Most Vulnerable Elderly in the United States

Allison Barrett; Jody Schimmel

1 copayments for branded medications. Medication continuity was worse among beneficiaries who were African American, Hispanic, younger, or enrolled in a health maintenance organization health plan or who had a comorbid substance use disorder or cardiovascular disease. CONCLUSIONS Prior-authorization requirements and copayments for medications may present barriers to refilling medications for Medicaid beneficiaries with schizophrenia or bipolar disorder. State Medicaid programs should consider the unintended consequences of medication utilization management practices for this population.


Mathematica Policy Research Reports | 2010

Multiple Service Use Among OAA Title III Program Participants

Allison Barrett; Jody Schimmel

OBJECTIVE This study identified Medicaid beneficiaries using mental health or substance abuse services in fee-for-service plans in 13 states in 2003 (N=1,380,190) and examined their use of medical services. METHODS Administrative and fee-for-service claims data from Medicaid Analytic eXtract files were analyzed to identify mutually exclusive groups of beneficiaries who used either mental health or substance abuse services and to describe patterns of medical service use. RESULTS Overall, 11.7% of Medicaid beneficiaries were identified as using mental health or substance abuse services (10.9% and .7% used each of these services, respectively), with substantial variation across age and eligibility groups. Among beneficiaries using mental health services, 47.4% had visited an emergency room for any reason, 7.8% were treated for their disorder in inpatient settings, 13.8% received inpatient treatment for problems other than their mental or substance use disorders, and 70.4% received prescriptions for psychotropic medications. Among beneficiaries using substance abuse services, 60.7% had visited an emergency room, 12.6% were treated for their disorder in inpatient settings, 24.7% received other inpatient treatment, and 46.1% received prescriptions for psychotropic medications. Among beneficiaries not using either mental health or substance use services, 29.0% had visited an emergency room, 12.7% received inpatient treatment, and 10.1% received prescriptions for psychotropic medications. CONCLUSIONS Beneficiaries who used mental health or substance abuse services entered general inpatient settings and visited emergency rooms more frequently than other beneficiaries.


Psychiatric Services | 2014

State and Demographic Variation in Use of Depot Antipsychotics by Medicaid Beneficiaries With Schizophrenia

Jonathan D. Brown; Allison Barrett; Emily Caffery; Kerianne Hourihan; Henry T. Ireys


Mathematica Policy Research Reports | 2012

Evidence-Based Treatment for Schizophrenia and Bipolar Disorder in State Medicaid Programs

Allison Barrett; Jonathan D. Brown; Emily Caffery; Kerianne Hourihan; Henry T. Ireys


Mathematica Policy Research Reports | 2010

Mental Health and Substance Abuse Services in Medicaid 2003 Charts and State Tables

Henry T. Ireys; Allison Barrett; James M. Verdier; Ann D. Bagchi; Carol V. Irvin; Christine Yip; Jeffrey A. Buck; Judith L. Teich


Community Mental Health Journal | 2015

State Variation in the Delivery of Comprehensive Services for Medicaid Beneficiaries with Schizophrenia and Bipolar Disorder

Jonathan D. Brown; Allison Barrett; Kerianne Hourihan; Emily Caffery; Henry T. Ireys

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Henry T. Ireys

Mathematica Policy Research

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Deborah Chollet

Mathematica Policy Research

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Emily Caffery

Mathematica Policy Research

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Jonathan D. Brown

Mathematica Policy Research

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Kerianne Hourihan

Mathematica Policy Research

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James M. Verdier

Mathematica Policy Research

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Jeffrey A. Buck

Substance Abuse and Mental Health Services Administration

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Jody Schimmel

Mathematica Policy Research

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Judith L. Teich

Substance Abuse and Mental Health Services Administration

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