The economic implications of the racial and ethnic disparities in the use of selective serotonin reuptake inhibitors

Racial and ethnic disparities in the enrolment of medicare medication therapy management programs

Objectives

Racial/ethnic disparities have been found in prior literature examining enrolment in Medicare medication therapy management programs. However, those studies were based on various eligibility scenarios because enrolment data were unavailable. This study tested for potential disparities in enrolment using actual MTM enrolment data.

Methods

Medicare Parts A&B claims, Medication Therapy Management Data Files, and the Area Health Resources File from 2013 to 2014 and 2016 to 2017 were analysed in this retrospective analysis. An adjusted logistic regression compared odds of enrolment between racial/ethnic minorities and non-Hispanic Whites (Whites) in the total sample and subpopulations with diabetes, hypertension, or hyperlipidaemia. Trends in disparities were analysed by including interaction terms in regressions between dummy variables for race/ethnic minority groups and period 2016-2017.

Key Findings

Disparities in MTM enrolment were detected between Blacks and Whites with diabetes in 2013-2014 (Odds Ratio = 0.78, 95% Confidence Interval = 0.75-0.81). This disparity improved from 2013-2014 to 2016-2017 for Blacks (Odds Ratio=1.08, 95% Confidence Interval = 1.04-1.11) but persisted in 2016-2017 (Odds Ratio = 0.84, 95% Confidence Interval = 0.81-0.87). A disparity was identified between Blacks and Whites with hypertension in 2013-2014 (Odds Ratio = 0.92, 95% Confidence Interval = 0.89-0.95) but not in 2016-2017. Enrolment for all groups, however, declined between periods. For example, in the total sample, the odds of enrolment declined from 2013-2014 to 2016-2017 by 22% (Odds Ratio=0.78, 95% Confidence Interval=0.75-0.81).

Conclusions

Racial disparities in MTM enrolment were found between Blacks and Whites among Medicare beneficiaries with diabetes in both periods and among individuals with hypertension in 2013-2014. As overall enrolment fell between periods, concerns about program enrolment remain.

Higher Predictive Value Positive for MMA Than ACA MTM Eligibility Criteria Among Racial and Ethnic Minorities: An Observational Study

The objective of this study was to examine positive predictive value (PPV) of medication therapy management (MTM) eligibility criteria under Medicare Modernization Act (MMA) and Affordable Care Act (ACA) in identifying patients with medication utilization issues across racial and ethnic groups. The study analyzed Medicare data (2012-2013) for 2 213 594 beneficiaries. Medication utilization issues were determined based on medication utilization measures mostly developed by Pharmacy Quality Alliance. MMA was associated with higher PPV than ACA in identifying individuals with medication utilization issues among non-Hispanic blacks (blacks) and Hispanics than non-Hispanic whites (whites). For example, odds ratio for having medication utilization issues to whites when examining MMA in 2013 and ACA were 1.09 (95% confidence interval [CI] = 1.04-1.15) among blacks, and 1.17 (95% CI = 1.10-1.24) among Hispanics, in the main analysis. Therefore, MMA was associated with 9% and 17% higher PPV than ACA in identifying patients with medication utilization issues among blacks and Hispanics, respectively, than whites.

Racial and Ethnic Disparities in Meeting MTM Eligibility Criteria Based on Star Ratings Compared with the Medicare Modernization Act

BACKGROUND

Previous research found racial and ethnic disparities in meeting medication therapy management (MTM) eligibility criteria implemented by the Centers for Medicare & Medicaid Services (CMS) in accordance with the Medicare Modernization Act (MMA).

OBJECTIVE

To examine whether alternative MTM eligibility criteria based on the CMS Part D star ratings quality evaluation system can reduce racial and ethnic disparities.

METHODS

This study analyzed the Beneficiary Summary File and claims files for Medicare beneficiaries linked to the Area Health Resource File. Three million Medicare beneficiaries with continuous Parts A, B, and D enrollment in 2012-2013 were included. Proposed star ratings criteria included 9 existing medication safety and adherence measures developed mostly by the Pharmacy Quality Alliance. Logistic regression and the Blinder-Oaxaca approach were used to test disparities in meeting MMA and star ratings eligibility criteria across racial and ethnic groups. Multinomial logistic regression was used to examine whether there was a disparity reduction by comparing individuals who were MTM-eligible under MMA but not under star ratings criteria and those who were MTM-eligible under star ratings criteria but not under the MMA. Concerning MMA-based MTM criteria, main and sensitivity analyses were performed to represent the entire range of the MMA eligibility thresholds reported by plans in 2009, 2013, and proposed by CMS in 2015. Regarding star ratings criteria, meeting any 1 of the 9 measures was examined as the main analysis, and various measure combinations were examined as the sensitivity analyses.

RESULTS

In the main analysis, adjusted odds ratios for non-Hispanic blacks (backs) and Hispanics to non-Hispanic whites (whites) were 1.394 (95% CI = 1.375-1.414) and 1.197 (95% CI = 1.176-1.218), respectively, under star ratings. Blacks were 39.4% and Hispanics were 19.7% more likely to be MTM-eligible than whites. Blacks and Hispanics were less likely to be MTM-eligible than whites in some sensitivity analyses. Disparities were not completely explained by differences in patient characteristics based on the Blinder-Oaxaca approach. The multinomial logistic regression of each main analysis found significant adjusted relative risk ratios (RRR) between whites and blacks for 2009 (RRR = 0.459, 95% CI = 0.438-0.481); 2013 (RRR = 0.449, 95% CI = 0.434-0.465); and 2015 (RRR = 0.436, 95% CI = 0.425-0.446) and between whites and Hispanics for 2009 (RRR = 0.559, 95% CI = 0.528-0.593); 2013 (RRR = 0.544, 95% CI = 0.521-0.569); and 2015 (RRR = 0.503, 95% CI = 0.488-0.518). These findings indicate a significant reduction in racial and ethnic disparities when using star ratings eligibility criteria; for example, black-white disparities in the likelihood of meeting MTM eligibility criteria were reduced by 55.1% based on star ratings compared with MMA in 2013. Similar patterns were found in most sensitivity and disease-specific analyses.

CONCLUSIONS

This study found that minorities were more likely than whites to be MTM-eligible under the star ratings criteria. In addition, MTM eligibility criteria based on star ratings would reduce racial and ethnic disparities associated with MMA in the general Medicare population and those with specific chronic conditions.

DISCLOSURES

Research reported in this publication was supported by the National Institute on Aging of the National Institutes of Health under award number R01AG049696. The content of this study is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. Cushman reports an Eli Lilly grant and uncompensated consulting for Takeda Pharmaceuticals outside this work. The other authors have no potential conflicts of interest to report. Study concept and design were contributed by Wang and Shih, along with Wan, Kuhle, Spivey, and Cushman. Wang, Qiao, and Wan took the lead in data collection, with assistance from the other authors. Data interpretation was performed by Wang, Kuhle, and Qiao, with assistance from the other authors. The manuscript was written by Spivey and Qiao, along with the other authors, and revised by Cushman, Dagogo-Jack, and Chisholm-Burns, along with the other authors.

Racial and ethnic disparities in meeting MTM eligibility criteria among patients with asthma

BACKGROUND

Asthma is one of the most frequently targeted chronic diseases in the medication therapy management (MTM) programs of the Medicare prescription drug (Part D) benefits. Although racial and ethnic disparities in meeting eligibility criteria for MTM services have been reported, little is known about whether there would be similar disparities among adults with asthma in the United States.

METHODS

Adult patients with asthma (age ≥ 18) from Medical Expenditure Panel Survey (2011-2012) were analyzed. Bivariate analyses were conducted to compare the proportions of patients who would meet Medicare MTM eligibility criteria between non-Hispanic Blacks (Blacks), Hispanics and non-Hispanic Whites (Whites). Survey-weighted logistic regression was performed to adjust for patient characteristics. Main and sensitivity analyses were conducted to cover the entire range of the eligibility thresholds used by Part D plans in 2011-2012.

RESULTS

The sample included 4,455 patients with asthma, including 2,294 Whites, 1,218 Blacks, and 943 Hispanics. Blacks and Hispanics had lower proportions of meeting MTM eligibility criteria than did Whites (P < 0.001). According to the main analysis, Blacks and Hispanics had 36% and 32% lower, respectively, likelihood of MTM eligibility than Whites (odds ratio [OR]: 0.64, 95% confidence interval [CI]: 0.45-0.90; OR: 0.68, 95% CI: 0.47-0.98, respectively). Similar results were obtained in sensitivity analyses.

CONCLUSIONS

There are racial and ethnic disparities in meeting Medicare Part D MTM eligibility criteria among adult patients with asthma. Future studies should examine the implications of such disparities on health outcomes of patients with asthma and explore alternative MTM eligibility criteria.

Disparity Implications of Proposed 2015 Medicare Eligibility Criteria for Medication Therapy Management Services

OBJECTIVES

Previous studies found that racial and ethnic minorities may be less likely than non-Hispanic Whites (Whites) to meet existing Medicare medication therapy management (MTM) eligibility criteria. To address these issues, the Centers for Medicare & Medicaid Services (CMS) proposed alternative Medicare MTM eligibility criteria for 2015. Due to opposition to other Part D reforms proposed simultaneously by various stakeholders, CMS rescinded all proposed reforms. This study was conducted to determine whether non-Hispanic Blacks (Blacks) and Hispanics have lower likelihood of meeting the proposed 2015 Medicare MTM eligibility criteria.

METHODS

This retrospective observational analysis used Medical Expenditure Panel Survey data (2010-2011). The final study sample was comprised of 2,721 Whites (weighted to 37,185,896), 917 Blacks (weighted to 4,665,644), and 538 Hispanics (weighted to 3,532,882). Chi-square tests were used to examine racial and ethnic disparities in meeting proposed 2015 MTM eligibility criteria and each component of proposed 2015 MTM eligibility criteria. In multivariate analysis, a logistic regression model was used to control for population socio-demographic and health-related characteristics.

KEY FINDINGS

Compared to Whites with a proportion of MTM eligibility of 58.82%, the eligible proportion was 57.09% (P=0.20) for Blacks, and 48.97% (P<0.0001) for Hispanics, respectively. According to multivariate logistic regression, odds ratios of meeting MTM eligibility for Blacks and Hispanics compared to Whites were 0.74 (95% Confidence Internal [CI] = 0.62-0.88) and 0.53 (95% CI=0.43-0.67), respectively.

CONCLUSIONS

The proposed 2015 MTM eligibility criteria would not eliminate racial and ethnic disparities in MTM eligibility. Alternative MTM eligibility criteria should be devised.

Potential effects of racial and ethnic disparities in meeting Medicare medication therapy management eligibility criteria

OBJECTIVE

Medication therapy management (MTM) has the potential to play an instrumental role in reducing racial and ethnic disparities in health care. However, previous research has found that Blacks and Hispanics are less likely to be eligible for MTM. The purpose of the current study was to examine the potential effects of MTM eligibility criteria on racial and ethnic disparities in health outcomes.

METHODS

The current study is a retrospective cross-sectional analysis of the Medicare Current Beneficiary Survey Cost and Use files for the years 2007 and 2008. A difference-in-differences model was used to compare disparities in outcomes between ineligible and eligible beneficiaries according to MTM eligibility criteria in 2010. This was achieved by including in regression models interaction terms between dummy variables for Blacks/Hispanics and MTM eligibility criteria. Interaction terms were interpreted on both multiplicative and additive terms. Various regression models were used depending on the types of variables.

KEY FINDINGS

Whites were more likely to report self-perceived good health status than Blacks and Hispanics among both MTM-eligible and MTM-ineligible populations. Disparities were greater among MTM-ineligible than MTM-eligible populations (e.g., on additive term, difference in odds=1.94 and P<0.01 for Whites and Blacks; difference in odds=2.86 and P<0.01 for Whites and Hispanics). A few other measures also exhibited significant patterns.

CONCLUSIONS

MTM eligibility criteria may exacerbate racial and ethnic disparities in health status and some measures of health services utilizations and costs and medication utilization. Future research should examine strategies to remediate the effects of MTM eligibility criteria on disparities.

Potential health implications of racial and ethnic disparities in meeting MTM eligibility criteria

BACKGROUND

Previous studies have found that racial and ethnic minorities would be less likely to meet the Medicare eligibility criteria for medication therapy management (MTM) services than their non-Hispanic White counterparts.

OBJECTIVES

To examine whether racial and ethnic disparities in health status, health services utilization and costs, and medication utilization patterns among MTM-ineligible individuals differed from MTM-eligible individuals.

METHODS

This study analyzed Medicare beneficiaries in 2004-2005 Medicare Current Beneficiary Survey. Various multivariate regressions were employed depending on the nature of dependent variables. Interaction terms between the dummy variables for Blacks (and Hispanics) and MTM eligibility were included to test whether disparity patterns varied between MTM-ineligible and MTM-eligible individuals. Main and sensitivity analyses were conducted for MTM eligibility thresholds for 2006 and 2010.

RESULTS

Based on the main analysis for 2006 MTM eligibility criteria, the proportions for self-reported good health status for Whites and Blacks were 82.82% vs. 70.75%, respectively (difference = 12.07%; P < 0.001), among MTM-ineligible population; and 56.98% vs. 52.14%, respectively (difference = 4.84%; P = 0.31), among MTM-eligible population. The difference between these differences was 7.23% (P < 0.001). In the adjusted logistic regression, the interaction effect for Blacks and MTM eligibility had an OR of 1.57 (95% Confidence Interval, or CI = 0.98-2.52) on multiplicative term and difference in odds of 2.38 (95% CI = 1.54-3.22) on additive term. Analyses for disparities between Whites and Hispanics found similar disparity patterns. All analyses for 2006 and 2010 eligibility criteria generally reported similar patterns. Analyses of other measures did not find greater racial or ethnic disparities among the MTM-ineligible than MTM-eligible individuals.

CONCLUSIONS

Disparities in MTM eligibility may aggravate existing racial and ethnic disparities in health outcomes. However, disparities in MTM eligibility may not aggravate existing disparities in health services utilization and costs and medication utilization patterns. Future studies should examine the effects of Medicare Part D on these disparities.

Historical trend of disparity implications of Medicare MTM eligibility criteria

BACKGROUND

Non-Hispanic Blacks (Blacks) and Hispanics have a lower likelihood of being eligible for medication therapy management (MTM) services than do non-Hispanic Whites (Whites) based on Medicare MTM eligibility criteria.

OBJECTIVES

To determine whether MTM eligibility criteria would perform differently over time, this study examined the trend of MTM disparities from 1996-1997 to 2007-2008.

METHODS

The study populations were Medicare beneficiaries from the Medical Expenditure Panel Survey. Proportions and the odds of MTM eligibility were compared between Whites and ethnic minorities. The trend of disparities was examined by including in logistic regression models interaction terms between dummy variables for the minority groups and 2007-2008. MTM eligibility thresholds for 2008 and 2010-2011 were analyzed. Main and sensitivity analyses were conducted to represent the entire range of the eligibility criteria.

RESULTS

This study found no statistical significant racial or ethnic disparities associated with the MTM eligibility criteria for 2008 among the Medicare population during 1996-1997. However, racial disparities associated with 2010-2011 MTM eligibility criteria were significant according to multivariate analyses among the Medicare population during 1996-1997. During 2007-2008, both racial and ethnic disparities associated with both 2008 MTM eligibility criteria and 2010-2011 eligibility criteria were generally significant. Disparity patterns did not exhibit a statistically significant change from 1996-1997 to 2007-2008.

CONCLUSIONS

Racial and ethnic disparities in meeting MTM eligibility criteria may not decrease over time unless MTM eligibility criteria are changed.

Disparity implications of the Medicare medication therapy management eligibility criteria: a literature review

The emphasis on eliminating racial and ethnic disparities in healthcare has received national attention, with various policy initiatives addressing this problem and proposing solutions. However, in the current economic era requiring tight monetary constraints, emphasis is increasingly being placed on economic efficiency, which often conflicts with the equality doctrine upon which many policies have been framed. The authors' review aims to highlight the disparity implications of one such policy provision - the predominantly utilization-based eligibility criteria for medication therapy management services under Medicare Part D - by identifying studies that have documented racial and ethnic disparities in health status and the use of and spending on prescription medications. Future design and evaluation of various regulations and legislations employing utilization-based eligibility criteria must use caution in order to strike an equity-efficiency balance.

Racial and ethnic disparities in meeting Part D MTM eligibility criteria among the non-Medicare population

OBJECTIVE To determine whether racial and ethnic minorities were less likely to meet the Medicare Part D eligibility criteria for medication therapy management (MTM) services compared with whites among the adult non-Medicare population, because some non-Medicare health plans have followed the Medicare example. DESIGN Cross-sectional observational study. SETTING United States, 2007-08. PATIENTS 16,691 white, 5,923 black, and 9,242 Hispanic adults (&gt;17 years) among the non-Medicare population. INTERVENTION Analysis of the Medical Expenditure Panel Survey. MTM eligibility criteria used by Part D plans in 2008 and 2010-11 were examined. Main and sensitivity analyses were conducted to represent the entire range of the eligibility thresholds used by Part D plans. Analyses also were conducted among individuals with heart disease, diabetes, and hypertension. MAIN OUTCOME MEASURES Proportions and odds of patients meeting Part D MTM eligibility criteria. RESULTS According to the main analysis examining 2008 eligibility criteria, whites had a higher proportion of eligible individuals than did blacks (3.73% vs. 2.57%) and Hispanics (1.53%, P &lt; 0.05 for both comparisons). According to survey-weighted logistic regression adjusting for patient characteristics, blacks and Hispanics had odds ratios for MTM eligibility of 0.60 (95% CI 0.46-0.79) and 0.54 (0.40-0.72), respectively, compared with whites. Sensitivity analyses, analyses examining 2010-11 eligibility criteria, and analyses among individuals with heart disease, diabetes, and hypertension produced similar findings. CONCLUSION Racial and ethnic minorities have lower odds for meeting Part D MTM eligibility criteria than whites among the adult non-Medicare population. MTM eligibility criteria need to be modified to address these disparities.

Disparity implications of Medicare eligibility criteria for medication therapy management services

OBJECTIVE

To determine whether there would be racial and ethnic disparities in meeting eligibility criteria for medication therapy management (MTM) services implemented in 2006 for Medicare beneficiaries.

DATA SOURCES/STUDY SETTING

Secondary data analyses of the Medical Expenditure Panel Survey (2004-2005).

STUDY DESIGN

Logistic regression and recycled predictions were used to test the disparities in meeting eligibility criteria across racial and ethnic groups. The eligibility thresholds used by health plans in 2006 and new thresholds recommended for 2010 were examined. Racial and ethnic disparities were examined by comparing non-Hispanic blacks (blacks) with non-Hispanic whites (whites) and comparing Hispanics with whites, respectively. Disparities were also examined among individuals with severe health problems.

PRINCIPAL FINDINGS

According to 2006 thresholds, the adjusted odds ratios for meeting eligibility criteria for blacks and Hispanics to whites were 0.36-0.60 (p<.05) and 0.13-0.46 (p<.05), respectively. Blacks and Hispanics would be 21-34 and 32-38 percent, respectively, less likely to be eligible than whites according to recycled predictions. Similar patterns were found using the 2010 eligibility thresholds and among individuals with severe health problems.

CONCLUSIONS

There would be racial and ethnic disparities in meeting MTM eligibility criteria. Future research is warranted to confirm the findings using data after MTM implementation.

A randomized controlled trial of sertraline for the treatment of depression in persons with traumatic brain injury

OBJECTIVE

To examine the efficacy of sertraline in the treatment of depression after traumatic brain injury (TBI).

DESIGN

Double-blind, randomized controlled trial.

SETTING

Research center at a major urban medical center.

PARTICIPANTS

Subjects were a referred and volunteer sample of 52 participants with TBI, a diagnosis of major depression disorder (MDD), and a score on the Hamilton Rating Scale for Depression (HAM-D) of 18 or greater. The majority of the sample was male (58%), had less than 14 years of education (73%), had incomes below $20,000 (82%), and were from minority backgrounds (75%). Approximately one third of the sample had mild brain injuries, and two thirds had moderate to severe brain injuries. The mean age was 47+/-11, and the mean time since injury was 17+/-14 years. One participant withdrew from the study because of side effects.

INTERVENTION

Daily oral sertraline in doses starting at 25mg and increasing to therapeutic levels (up to 200mg) or placebo for 10 weeks.

MAIN OUTCOME MEASURES

The HAM-D, the Beck Anxiety Inventory, and the Life-3 quality of life (QOL).

RESULTS

No statistically significant differences were found at baseline between drug and placebo groups on baseline measures of depression (24.8+/-7.3 vs 27.7+/-7.0), anxiety (16.4+/-12.3 vs 24.0+/-14.9), or QOL (2.96+/-1.0 vs 2.9+/-0.9). The income level of those receiving placebo was significantly lower than those participants receiving medication. Analyses of covariance revealed significant changes from preintervention to posttreatment for all 3 outcome measures (P<.001) but no group effects. Random-effects modeling did not find any significant difference in patterns of scores of the outcome measures between the placebo and medication groups.

CONCLUSIONS

Both groups showed improvements in mood, anxiety, and QOL, with 59% of the experimental group and 32% of the placebo group responding to the treatment, defined as a reduction of a person's HAM-D score by 50%.

A comparison of direct medical costs across racial and ethnic groups among children with cancer

OBJECTIVE

Previous studies reported that some minority childhood cancer patients are likely to develop worse outcomes than white children. This study examines whether there are racial and ethnic disparities in health expenditures among children with cancer.

RESEARCH DESIGN AND METHODS

A retrospective study was conducted among children (younger than 20) with cancer diagnoses in the Medical Expenditure Panel Survey (MEPS; 1996 to 2004). Total health expenditures and the following subcategories were examined across racial and ethnic groups: (1) office-based visits; (2) outpatient visits; (3) inpatient and emergency room visits; (4) home health care; (5) prescription drugs; and (6) dental, vision, and other health care expenditures. Consumer price indexes were used to convert all expenditures to 2004 dollars. A classical linear model was analyzed using the natural logarithm of health expenditures as the dependent variable, with the purpose of determining whether there were racial and ethnic differences in health expenditures after adjusting for confounding factors.

RESULTS

Study sample included 394 non-Hispanic whites (weighted to 4 958 685), 53 non-Hispanic blacks (weighted to 352 534), and 94 Hispanic whites (weighted to 424 319). Hispanic blacks and other minority populations were excluded from the analysis due to insufficient sample size. The annual total health expenditure for treating each child with cancer was $3467.40, $2156.15, and $5545.34, respectively, among non-Hispanic whites, non-Hispanic blacks, and Hispanic whites. The differences in the various subcategories of health expenditures across racial and ethnic groups were generally not significant according to both descriptive and analytical analyses with very few exceptions.

CONCLUSIONS

This study did not identify significant racial and ethnic disparities in health care costs. However, one important study limitation is the small sample size of the minority populations in the study sample.

Racial and ethnic disparities in the use of mental health services

The authors used data from the 1998-1999 Community Tracking Study (CTS) household survey to examine variations in predictors of use of mental health services among different racial and ethnic groups (white, African American, Hispanic, and other). African Americans and Hispanics were less likely to have visited a mental health professional (MHP) in the prior year than were whites. Independent of health insurance and health status, low- to middle-income African Americans may be at particular risk for inadequate use of an MHP compared to higher-income African Americans. Similarly, upper-income Hispanics were more likely to have visited an MHP than Hispanics in the lowest income range. Adults aged 50 and older were less likely to visit an MHP than individuals aged 18-49. Depressed men were more likely to visit an MHP than depressed women. Efforts to reduce disparities should focus on lower-income racial and ethnic minorities.