The Impact of Medicare Health Insurance Coverage on Lung Cancer Screening.

BACKGROUND: Annual lung cancer screening via low-dose computed tomography can reduce lung cancer mortality among high-risk adults by 20%; however, screening take-up remains low. Inadequate insurance coverage or access to care may be a barrier to screening. OBJECTIVE: The objective of this study was to estimate the effect of nearly universal access to Medicare coverage on annual lung cancer screening. RESEARCH DESIGN: A regression discontinuity design was used to estimate the causal effect of nearly universal access to Medicare at age 65. Data come from the 2017 to 2019 Behavioral Risk Factor Surveillance System in 28 states that adopted the optional module on lung cancer screening and lung cancer risk. SUBJECTS: A total of 11,163 individuals at high risk for lung cancer just above and below age 65. MEASURE: Self-reported use of low-dose computed tomography to screen for lung cancer in the past 12 months. RESULTS: A total of 10,951 people at high lung cancer risk (45.7% women, response rate=98.1%) reported lung cancer screening information. Nearly universal access to Medicare increased lung cancer screening by 16.2 percentage points among men (95% confidence interval: 2.4%-30.0%, P=0.02), compared with a baseline screening rate of 11.1% just younger than age 65. Women had a baseline screening rate of 18.2% and experienced no statistically significant change in screening (1.6 percentage point increase, 95% confidence interval: -19.8% to 23.0%, P=0.88). CONCLUSIONS: Gaining Medicare coverage at age 65 increased lung cancer screening take-up among men at high lung cancer risk. Lack of insurance or inadequate access to care hinders screening.

The effect of direct cognitive assessment in the Medicare annual wellness visit on dementia diagnosis rates.

OBJECTIVE: To evaluate the relationship between direct cognitive assessment introduced with the Medicare Annual Wellness Visit (AWV) and new diagnoses of dementia, and to determine if effects vary by race. DATA SOURCES: Medicare Limited Data Set 5% sample claims 2003-2014 and the HRSA Area Health Resources Files. STUDY DESIGN: Instrumental Variable approach estimating the relationship between AWV utilization and new diagnoses of dementia using county-level Welcome to Medicare Visit rates as an instrument. DATA COLLECTION/EXTRACTION METHODS: Three hundred twenty-four thousand three hundred and eighty-five fee-for-service Medicare beneficiaries without dementia when the AWV was introduced in 2011. PRINCIPAL FINDINGS: Annual Wellness Visit utilization was associated with an increased probability of new dementia diagnosis with effects varying by racial group (categorized as white, black, Hispanic/Latino, or Asian based on Social Security Administration data). Hazard ratios (95% confidence intervals) for new dementia diagnosis within 6 months of AWV utilization were as follows: 2.34 (2.13, 2.58) white, 2.22 (1.71, 2.89) black, 4.82 (2.94, 7.89) Asian, and 6.14 (3.70, 10.19) Hispanic (P < .001 for each). Our findings show that estimates that do not control for selection underestimate the effect of AWV on new diagnoses. CONCLUSIONS: Dementia diagnosis rates increased with AWV implementation with heterogenous effects by race and ethnicity. Current recommendations by the United States Preventive Services Task Force state that the evidence is insufficient to recommend for or against screening for cognitive impairment in older adults.

Patient Characteristics Are Not Associated With Documentation of Weight and Heart Failure Related Sign and Symptom Assessment in Skilled Nursing Facilities.

OBJECTIVE: Monitoring body weight and signs and symptoms related to heart failure (HF) can alert clinicians to a patient's worsening condition but the degree to which these practices are performed in skilled nursing facilities (SNFs) is unknown. This study analyzed the frequency of these monitoring practices in SNFs and explored associated factors at both the patient and SNF level. DESIGN: An observational study of data from the usual care arm of the SNF Connect Trial, a randomized cluster trial of a HF disease management intervention. The data extracted from charts were combined with publicly available facility data. A linear regression model was estimated to evaluate the frequency of HF disease management conditional on patient and facility covariates. SETTING: Data from 28 SNFs in Colorado. PARTICIPANTS: Patients discharged from hospital to SNFs with a primary or secondary diagnosis of HF. MEASUREMENTS: Patient-level covariates included demographics, New York Heart Association class, type of HF, and Charlson comorbidity index. Facility-level covariates were from Nursing Home Compare. RESULTS: The sample (n = 320) was majority female (66%), white (93%), with mean age 80 ± 10 years and a Charlson comorbidity index of 3.2 ± 1.5. Seventy percent had HF with preserved ejection fraction, mean ejection fraction of 50 ± 16% and 40% with a New York Heart Association class III-IV. On average, patients were weighed 40% of their days in the SNF and had documentation of at least 1 HF-related sign or symptom 70% of their days in the SNF. Patient-level factors were not associated with frequency of documenting weight and assessments of HF-related signs/symptoms. Health Inspection Star Rating was positively associated with weight monitoring (P < .05) but not associated with symptom assessment. CONCLUSIONS AND IMPLICATIONS: Patient-level factors are not meaningfully associated with the documentation of weight tracking or sign/symptom assessment. Monitoring weight was instead associated with the Health Inspection Star Rating.

Information Needs of Skilled Nursing Facility Staff to Support Heart Failure Disease Management.

OBJECTIVES: Characterize key tasks and information needs for heart failure disease management (HF-DM) in the distinct care setting of skilled nursing facility (SNF) staff in partnership with community-based clinical stakeholders. Develop design recommendations contextualized to the SNF setting for informatics interventions for improved HF-DM in the SNF setting. METHODS: Semi-structured interviews with fifteen participants (registered nurses, licensed practical nurses, certified nursing aides and physicians) from 8 Denver-metro SNFs. Data coded using a data-driven, inductive approach. RESULTS: Key tasks of HF-DM: symptom assessment, communicating change in condition, using equipment, documentation of daily weights, and monitoring patients. Themes: 1) HF-DM is challenged by a culture of verbal communication; 2) staff face knowledge barriers in HF-DM that are partially attributed to unmet information needs. HF-DM information needs: identification of HF patients, HF signs and symptoms, purpose of daily weights, indicators of worsening HF, purpose of sodium restricted diet, and materials to improve patients' understanding of HF. DISCUSSION AND CONCLUSIONS: HF-DM information needs are not fully supported by current SNF information systems.

Medicaid and Nursing Home Choice: Why Do Duals End Up in Low-Quality Facilities?

We provide empirical evidence on the relative importance of specific observable factors that can explain why individuals enrolled in both Medicare and Medicaid (duals) are concentrated in lower quality nursing homes, relative to those not on Medicaid. Descriptive results show that duals are 9.7 percentage points more likely than nonduals to be admitted to a low-quality (1-2 stars) nursing home. Using the Blinder-Oaxaca decomposition approach in a multivariate framework, we find that 35.4% of the difference in admission to low-quality nursing homes can be explained by differences in the distribution of observable characteristics. Differences in education and distance to high-quality nursing homes are important drivers, as are health status and race. Our findings highlight the need for creative policy solutions targeting the modifiable factors to reduce the disparity.

Impact of an incentive-based prenatal smoking cessation program for low-income women in Colorado.

OBJECTIVE: To assess birth outcomes and cost-savings of an incentive-based prenatal smoking cessation program targeting low-income women in Colorado. DESIGN: Prospective observational cohort with nonequivalent population control groups. SAMPLE: Program participants (n = 2,231) linked to the birth certificate to ascertain birth outcomes compared to two reference populations from Pregnancy Risk Assessment Monitoring System (PRAMS) and Colorado live births based on the birth certificate. MEASUREMENTS: Tobacco cessation metrics in the third trimester of pregnancy, neonatal low birth weight (<2,500 g), preterm birth (birth at <37 weeks gestation), neonatal intensive care unit (NICU) admission and maternal gestational hypertension. Cost-savings and return on investment (ROI) were projected using average Medicaid reimbursement. RESULTS: Infants of mothers enrolled in the program had a lower risk of low birthweight (RR = 0.86; 95% CI = 0.75, 0.97), preterm birth (PTB) (RR = 0.76; 95% CI = 0.65, 0.88) and neonatal intensive care unit (NICU) admission (RR = 0.76; 95% CI = 0.66, 0.88) compared to the birth certificate population, corresponding to a ROI of $7.73 and an individual cost savings of $6,040. Compared to PRAMS, infants of enrolled mothers had a lower risk of PTB (RR = 0.72; 95% CI = 0.53, 0.99) and NICU admission (RR = 0.45; 95% CI = 0.32, 0.62), corresponding to an ROI of $2.79 and an individual cost savings of $2,182. CONCLUSIONS: We found a reduction of adverse birth outcomes, and cost savings.

Consumer Response to Composite Ratings of Nursing Home Quality.

Health care report cards are intended to address information asymmetries and enable consumers to choose providers of better quality. However, the form of the information may matter to consumers. Nursing Home Compare, a website that publishes report cards for nursing homes, went from publishing a large set of indicators to a composite rating in which nursing homes are assigned one to five stars. We evaluate whether the simplified ratings motivated consumers to choose better-rated nursing homes. We use a regression discontinuity design to estimate changes in new admissions six months after the publication of the ratings. Our main results show that nursing homes that obtained an additional star gained more admissions, with heterogeneous effects depending on baseline number of stars. We conclude that the form of quality reporting matters to consumers, and that the increased use of composite ratings is likely to increase consumer response.

Persistent Disparities in Medicare's Annual Wellness Visit Utilization.

INTRODUCTION: The Medicare Annual Wellness Visit (AWV) is a preventive care visit introduced in 2011 as part of the Affordable Care Act provided without cost to beneficiaries. The AWV is associated with higher preventive services utilization. Although AWV utilization increased during 2011-2013, utilization was lower among ethnoracial minority beneficiaries who may benefit the most. OBJECTIVES: To determine if AWV utilization disparities have persisted using the most recent data available. RESEARCH DESIGN: The authors analyzed AWV utilization in 2011-2013 and 2015-2016 by beneficiary-reported race and ethnicity, adjusting for potential confounders. SUBJECTS: Weighted sample of 78,639,501 fee-for-service Medicare beneficiaries aged 66 years and older who participated in the Medicare Current Beneficiary Survey 2011-2013 or 2015-2016. MEASURES: AWV utilization was identified using Medicare claims. RESULTS: AWV utilization increased from 8.1% to 23.0% of all beneficiaries between 2011 and 2016. Compared with non-Hispanic white beneficiaries, utilization was significantly lower among non-Hispanic Black and non-Hispanic other race beneficiaries in both the minimally and fully-adjusted models. Hispanic/Latino beneficiaries had lower utilization in the minimally adjusted model, but not in the fully-adjusted model. In 2016, compared with non-Hispanic white beneficiaries, AWV utilization was 10.2 points lower for non-Hispanic black, 11.6 points lower for Hispanic/Latino, and 8.6 points lower for non-Hispanic other race beneficiaries, and these differences were attenuated after adjusting for all covariates to 6.8 points lower, 9.4 points lower, and 7.2 points lower, respectively. CONCLUSIONS: The AWV has the potential to increase the use of preventive care, improve health, and reduce ethnoracial disparities among Medicare beneficiaries, but realizing these goals will require increasing utilization by minority groups. If ethnoracial minority beneficiaries had used the AWV at the same rate as non-Hispanic white beneficiaries during the study period, then ~1.6 million additional AWVs would have been used.

Nursing Home Response to Nursing Home Compare: The Provider Perspective.

Nursing Home Compare (NHC) publishes composite quality ratings of nursing homes based on a five-star rating system, a system that has been subject to controversy about its validity. Using in-depth interviews, we assess the views of nursing home administrators and staff on NHC and unearth strategies used to improve ratings. Respondents revealed conflicting goals and strategies. Although nursing home managers monitor the ratings and expend effort to improve scores, competing goals of revenue maximization and avoidance of litigation often overshadow desire to score well on NHC. Some of the improvement strategies simply involve coding changes that have no effect on resident outcomes. Many respondents doubted the validity of the self-reported staffing data and stated that lack of risk adjustment biases ratings. Policy makers should consider nursing home incentives when refining the system, aiming to improve the validity of the self-reported domains to provide incentives for broader quality improvement.

Effect of Medicare Part D on Ethnoracial Disparities in Antidementia Medication Use.

OBJECTIVES: To examine ethnoracial disparities in antidementia medication use, accounting for implementation of Part D, and to evaluate the role of prescription drug coverage as a cause of antidementia medication disparities. DESIGN: Rotating panel of Medicare beneficiaries who participated in the Medicare Current Beneficiary Survey from 2003 to 2013. SETTING: Nationally representative sample of Medicare fee-for-service (FFS) beneficiaries with dementia. PARTICIPANTS: Community-dwelling FFS Medicare beneficiaries with dementia (N=4,304). MEASUREMENTS: Antidementia medication use, defined as at least one prescription fill in a given year. RESULTS: Unadjusted antidementia medication use was 10-percentage points lower for ethnoracial minority beneficiaries before Part D was implemented in 2006 (p=.01). This difference was attenuated after adjusting for demographic and socioeconomic factors (6-percentage points; p=.10). Part D was associated with a 6-percentage point increase in use (p<.01). The increase in use associated with Part D was higher although not statistically significantly so in ethnoracial minority beneficiaries (8-percentage points, p=.08). Analyses of each ethnoracial group found a significant effect of Part D only in Hispanic/Latino beneficiaries (18-percentage points; p<.01, adjusted). CONCLUSION: Antidementia medication disparities were reduced with expanded prescription drug coverage through Medicare Part D. Increases in antidementia medication use for minority beneficiaries started after Part D was implemented, with the largest increases in use observed in Hispanic/Latino beneficiaries.

Ethnoracial Disparities in Medicare Annual Wellness Visit Utilization: Evidence From a Nationally Representative Database.

INTRODUCTION: In 2011, Medicare began offering annual preventive care visits (annual wellness visit; AWV) to beneficiaries at no charge. Providing free preventive care supports primary and secondary prevention of chronic disease and may reduce ethnoracial disparities in health outcomes. OBJECTIVES: To estimate AWV utilization trends by ethnoracial group in a nationally representative sample of the Medicare population. RESEARCH DESIGN: We estimated the probability of AWV utilization using probit regression models with beneficiary-reported ethnoracial group as the primary predictor and demographics, socioeconomic indicators, and factors related to access and utilization of health care as covariates. SUBJECTS: In total, 14,687 fee-for-service Medicare beneficiaries aged 66 years or older who participated in the Medicare Current Beneficiary Survey 2011-2013. MEASURES: AWV utilization was identified using procedure codes. RESULTS: Overall AWV utilization increased from 8.1% (2011) to 13.4% (2013). In 2011, utilization was highest in non-Hispanic white (8.5%) and lowest in non-Hispanic black (4.5%) beneficiaries. Utilization increased the most in non-Hispanic black beneficiaries, to 15.4% in 2013. Significant differences in AWV utilization by non-Hispanic black and Hispanic/Latino beneficiaries were found in unadjusted models, but did not persist after controlling for income and education. Having a usual (nonemergent) place of care and a nonrural residence were strong predictors of utilization. CONCLUSIONS: Utilization of the AWV has increased modestly since its introduction, but remains low. Utilization varies by ethnoracial group, with disparities largely explained by differences in income and education. Further efforts are needed to evaluate AWV utilization and effectiveness, especially among low socioeconomic status ethnoracial minorities.

Hospital Admissions for Myocardial Infarction and Stroke Before and After the Trans-Fatty Acid Restrictions in New York.

Importance: Trans-fatty acids (TFAs) have deleterious cardiovascular effects. Restrictions on their use were initiated in 11 New York State (NYS) counties between 2007 and 2011. The US Food and Drug Administration plans a nationwide restriction in 2018. Public health implications of TFA restrictions are not well understood. Objective: To determine whether TFA restrictions in NYS counties were associated with fewer hospital admissions for myocardial infarction (MI) and stroke compared with NYS counties without restrictions. Design, Setting, and Participants: We conducted a retrospective observational pre-post study of residents in counties with TFA restrictions vs counties without restrictions from 2002 to 2013 using NYS Department of Health's Statewide Planning and Research Cooperative System and census population estimates. In this natural experiment, we included those residents who were hospitalized for MI or stroke. The data analysis was conducted from December 2014 through July 2016. Exposure: Residing in a county where TFAs were restricted. Main Outcomes and Measures: The primary outcome was a composite of MI and stroke events based on primary discharge diagnostic codes from hospital admissions in NYS. Admission rates were calculated by year, age, sex, and county of residence. A difference-in-differences regression design was used to compare admission rates in populations with and without TFA restrictions. Restrictions were only implemented in highly urban counties, based on US Department of Agriculture Economic Research Service Urban Influence Codes. Nonrestriction counties of similar urbanicity were chosen to make a comparison population. Temporal trends and county characteristics were accounted for using fixed effects by county and year, as well as linear time trends by county. We adjusted for age, sex, and commuting between restriction and nonrestriction counties. Results: In 2006, the year before the first restrictions were implemented, there were 8.4 million adults (53.6% female) in highly urban counties with TFA restrictions and 3.3 million adults (52.3% female) in highly urban counties without restrictions. Twenty-five counties were included in the nonrestriction population and 11 in the restriction population. Three or more years after restriction implementation, the population with TFA restrictions experienced significant additional decline beyond temporal trends in MI and stroke events combined (-6.2%; 95% CI, -9.2% to -3.2%; P < .001) and MI (-7.8%; 95% CI, -12.7% to -2.8%; P = .002) and a nonsignificant decline in stroke (-3.6%; 95% CI, -7.6% to 0.4%; P = .08) compared with the nonrestriction populations. Conclusions and Relevance: The NYS populations with TFA restrictions experienced fewer cardiovascular events, beyond temporal trends, compared with those without restrictions.

Use Of Nursing Home Compare Website Appears Limited By Lack Of Awareness And Initial Mistrust Of The Data.

In December 2008 the Centers for Medicare and Medicaid Services (CMS) launched a five-star rating system of nursing homes as part of Nursing Home Compare, a web-based report card detailing quality of care at all CMS-certified nursing homes. Questions remain, however, as to how well consumers use this rating system as well as other sources of information in choosing nursing home placement. We used a qualitative assessment of how consumers select nursing homes and of the role of information about quality, using semistructured interviews of people who recently placed a family member or friend in a nursing home. We found that consumers were receptive to using Internet-based information about quality as one source of information but that choice was limited by the need for specialized services, proximity to family or health care providers, and availability of Medicaid beds. Consumers had a positive reaction when shown Nursing Home Compare; however, its use appeared to be limited by lack of awareness and, to some extent, initial lack of trust of the data. Our findings suggest that efforts to expand the use of Nursing Home Compare should focus on awareness and trust. Useful additions to Nursing Home Compare might include measures of the availability of activities, information about cost, and consumer satisfaction.

Nursing home 5-star rating system exacerbates disparities in quality, by payer source.

Market-based reforms in health care, such as public reporting of quality, may inadvertently exacerbate disparities. We examined how the Centers for Medicare and Medicare Services' five-star rating system for nursing homes has affected residents who are dually enrolled in Medicare and Medicaid ("dual eligibles"), a particularly vulnerable and disadvantaged population. Specifically, we assessed the extent to which dual eligibles and non-dual eligibles avoided the lowest-rated nursing homes and chose the highest-rated homes once the five-star rating system began, in late 2008. We found that both populations resided in better-quality homes over time but that by 2010 the increased likelihood of choosing the highest-rated homes was substantially smaller for dual eligibles than for non-dual eligibles. Thus, the gap in quality, as measured by a nursing home's star rating, grew over time. Furthermore, we found that the benefit of the five-star system to dual eligibles was largely due to providers' improving their ratings, not to consumers' choosing different providers. We present evidence suggesting that supply constraints play a role in limiting dual eligibles' responses to quality ratings, since high-quality providers tend to be located close to relatively affluent areas. Increases in Medicaid payment rates for nursing home services may be the only long-term solution.

Item Response Theory Approaches to Harmonization and Research Synthesis.

The need to harmonize different outcome metrics is a common problem in research synthesis and economic evaluation of health interventions and technology. The purpose of this paper is to describe the use of multidimensional item response theory (IRT) to equate different scales which purport to measure the same construct at the item level. We provide an overview of multidimensional item response theory in general and the bi-factor model which is particularly relevant for applications in this area. We show how both the underlying true scores of two or more scales that are intended to measure the same latent variable can be equated and how the item responses from one scale can be used to predict the item responses for a scale that was not administered but are necessary for the purpose of economic evaluations. As an example, we show that a multidimensional IRT model predicts well both the EQ-5D descriptive system and the EQ-5D preference index from SF-12 data which cannot be directly used to perform an economic evaluation. Results based on multidimensional IRT performed well compared to traditional regression methods in this area. A general framework for harmonization of research instruments based on multidimensional IRT is described.