Browsing by Author "Sen, Bisakha"
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Item Adverse Selection in the Children’s Health Insurance Program(Sage, 2015-01) Morrisey, Michael A.; Blackburn, Justin; Becker, David J.; Sen, Bisakha; Kilgore, Meredith L.; Caldwell, Cathy; Menachemi, Nir; Department of Nursing, IU School of NursingThis study investigates whether new enrollees in the Alabama Children’s Health Insurance Program have different claims experience from renewing enrollees who do not have a lapse in coverage and from continuing enrollees. The analysis compared health services utilization in the first month of enrollment for new enrollees (who had not been in the program for at least 12 months) with utilization among continuing enrollees. A second analysis compared first-month utilization of those who renew immediately with those who waited at least 2 months to renew. A 2-part model estimated the probability of usage and then the extent of usage conditional on any utilization. Claims data for 826 866 child-years over the period from 1999 to 2012 were used. New enrollees annually constituted a stable 40% share of participants. Among those enrolled in the program, 13.5% renewed on time and 86.5% of enrollees were late to renew their enrollment. In the multivariate 2-part models, controlling for age, gender, race, income eligibility category, and year, new enrollees had overall first-month claims experience that was nearly $29 less than continuing enrollees. This was driven by lower ambulatory use. Late renewals had overall first-month claims experience that was $10 less than immediate renewals. However, controlling for the presence of chronic health conditions, there was no statistically meaningful difference in the first-month claims experience of late and early renewals. Thus, differences in claims experience between new and continuing enrollees and between early and late renewals are small, with greater spending found among continuing and early renewing participants. Higher claims experience by early renewals is attributable to having chronic health conditions.Item Assessing the Quality Measure for Follow-up Care After Children’s Psychiatric Hospitalizations(AAP, 2019-11) Blackburn, Justin; Sharma, Pradeep; Corvey, Kathryn; Morrisey, Michael A.; Menachemi, Nir; Sen, Bisakha; Caldwell, Cathy; Becker, David; Health Policy and Management, School of Public HealthOBJECTIVES: Medicaid and Children’s Health Insurance Program plans publicly report quality measures, including follow-up care after psychiatric hospitalization. We aimed to understand failure to meet this measure, including measurement definitions and enrollee characteristics, while investigating how follow-up affects subsequent psychiatric hospitalizations and emergency department (ED) visits. METHODS: Administrative data representing Alabama’s Children’s Health Insurance Program from 2013 to 2016 were used to identify qualifying psychiatric hospitalizations and follow-up care with a mental health provider within 7 to 30 days of discharge. Using relaxed measure definitions, follow-up care was extended to include visits at 45 to 60 days and visits to a primary care provider. Logit regressions estimated enrollee characteristics associated with follow-up care and, separately, the likelihood of subsequent psychiatric hospitalizations and/or ED visits within 30, 60, and 120 days. RESULTS: We observed 1072 psychiatric hospitalizations during the study period. Of these, 356 (33.2%) received follow-up within 7 days and 566 (52.8%) received it within 30 days. Relaxed measure definitions captured minimal additional follow-up visits. The likelihood of follow-up was lower for both 7 days (−18 percentage points; 95% confidence interval [CI] −26 to −10 percentage points) and 30 days (−26 percentage points; 95% CI −35 to −17 percentage points) regarding hospitalization stays of ≥8 days. Meeting the measure reduced the likelihood of subsequent psychiatric hospitalizations within 60 days by 3 percentage points (95% CI −6 to −1 percentage point). CONCLUSIONS: Among children, receipt of timely follow-up care after a psychiatric hospitalization is low and not sensitive to measurement definitions. Follow-up care may reduce the need for future psychiatric hospitalizations and/or ED visits.Item Differential Impact of Hospital and Community Factors on Medicare Readmission Penalties(Wiley, 2018) Aswani, Monica S.; Kilgore, Meredith L.; Becker, David J.; Redden, David T.; Sen, Bisakha; Blackburn, Justin; Health Policy and Management, School of Public HealthObjective: To identify hospital/county characteristics and sources of regional heterogeneity associated with readmission penalties. Data sources/study setting: Acute care hospitals under the Hospital Readmissions Reduction Program from fiscal years 2013 to 2018 were linked to data from the Annual Hospital Association, Centers for Medicare and Medicaid Services, Medicare claims, Hospital Compare, Nursing Home Compare, Area Resource File, Health Inequity Project, and Long-term Care Focus. The final sample contained 3,156 hospitals in 1,504 counties. Data collection/extraction methods: Data sources were combined using Medicare hospital identifiers or Federal Information Processing Standard codes. Study design: A two-level hierarchical model with correlated random effects, also known as the Mundlak correction, was employed with hospitals nested within counties. Principal findings: Over a third of the variation in readmission penalties was attributed to the county level. Patient sociodemographics and the surrounding access to and quality of care were significantly associated with penalties. Hospital measures of Medicare volume, percentage dual-eligible and Black patients, and patient experience were correlated with unobserved area-level factors that also impact penalties. Conclusions: As the readmission risk adjustment does not include any community-level characteristics or geographic controls, the resulting endogeneity bias has the potential to disparately penalize certain hospitals.Item Does preventive dental care reduce non-preventive dental visits and expenditures among Medicaid-enrolled adults?(Wiley, 2022) Taylor, Heather L.; Sen, Bisakha; Holmes, Ann M.; Schleyer, Titus; Menachemi, Nir; Blackburn, Justin; Health Policy and Management, School of Public HealthObjective To determine whether preventive dental visits are associated with fewer subsequent non-preventive dental visits and lower dental expenditures. Data Sources Indiana Medicaid enrollment and claims data (2015–2018) and the Area Health Resource File. Study design A repeated measures design with individual and year fixed effects examining the relationship between preventive dental visits (PDVs) and non-preventive dental visits (NPVs) and dental expenditures. Data Collection/Extraction Methods Not applicable. Principal findings Of 28,152 adults (108,349 observation-years) meeting inclusion criteria, 36.0% had any dental visit, 27.8% a PDV, and 22.1% a NPV. Compared to no PDV in the prior year, at least one was associated with fewer NPVs (β = −0.13; 95% CI -0.12, −0.11), lower NPV expenditures (β = −$29.12.53; 95% CI -28.07, −21.05), and lower total dental expenditures (−$70.12; 95% -74.92, −65.31), as well as fewer PDVs (β = −0.24; 95% CI -0.26, −0.23). Conclusions Our findings suggest that prior year PDVs are associated with fewer subsequent NPVs and lower dental expenditures among Medicaid-enrolled adults. Thus, from a public insurance program standpoint, supporting preventive dental care use may translate into improved population oral health outcomes and lower dental costs among certain low-income adult populations, but barriers to consistent utilization of PDV prohibit definitive findings.Item Factors and Outcomes Associated with Dental Care Use Among Medicaid-Enrolled Adults(2021-12) Taylor, Heather Lynn; Blackburn, Justin; Menachemi, Nir; Holmes, Ann; Schleyer, Titus; Sen, BisakhaPoor oral health is associated with pain, decreased chewing function, negative social perceptions, and reduced quality of life. Low-income adults disproportionally have worse oral health and use dental services at lower rates than higher-income adults. This disparity is associated with individual demographic and socioeconomic factors, cost and coverage barriers, as well as the supply and location of dental providers. Although the full causal pathway remains elusive, evidence suggests an association with poor oral health and an exacerbation of chronic diseases symptoms. Thus, adequate provision of dental care has important population health implications. Despite this importance, dental care use among low-income adults is particularly underexplored. Furthermore, existing research lacks robust methodological designs to mitigate bias from unobserved confounders. Dental coverage for low-income adults through Medicaid is emerging as a way to provide services to this population. However, given state budget constraints, comprehensive public dental benefits are uncommon or at risk of being cut. Therefore, it is important to quantify the individual and economic value of dental care use among adult Medicaid enrollees. This dissertation examines factors and outcomes associated with dental care use among Medicaid-enrolled adults in Indiana. This dissertation includes three studies 1) a pooled cross-sectional analysis that measures the association of individual and community level factors with dental care use, 2) a repeated measures study with individual fixed effects to examine whether receipt of preventive dental care is associated with fewer subsequent non-preventive dental visits and lower total annual dental expenditures, and 3) an empirical study that utilizes an instrumental variable estimation method to examine the effect of preventive dental visits on medical and pharmacy expenditures. Overall, this dissertation attempts to understand the correlates of dental care use, the effectiveness of preventive dental care, and the association between preventive dental care and medical expenditures.Item Health Expenditure Concentration and Characteristics of High-Cost Enrollees in CHIP(Sage, 2016) Sen, Bisakha; Blackburn, Justin; Aswani, Monica S.; Morrisey, Michael A.; Becker, David J.; Kilgore, Meredith L.; Caldwell, Cathy; Sellers, Chris; Menachemi, Nir; Department of Nursing, School of NursingDevising effective cost-containment strategies in public insurance programs requires understanding the distribution of health care spending and characteristics of high-cost enrollees. The aim was to characterize high-cost enrollees in a state’s public insurance program and determine whether expenditure inequality changes over time, or with changes in cost-sharing policies or program eligibility. We use 1999-2011 claims and enrollment data from the Alabama Children’s Health Insurance Program, ALL Kids. All children enrolled in ALL Kids were included in our study, including multiple years of enrollment (N = 1,031,600 enrollee-months). We examine the distribution of costs over time, whether this distribution changes after increases in cost sharing and expanded eligibility, patient characteristics that predict high-cost status, and examine health services used by high-cost children to identify what is preventable. The top 10% (1%) of enrollees account for about 65.5% (24.7%) of total program costs. Inpatient and outpatient costs are the largest components of costs incurred by high-cost utilizers. Non-urgent emergency department costs are a relatively small portion. Average expenditure increases over time, particularly after expanded eligibility, and the share of costs incurred by the top 10% and 1% increases slightly. Multivariable logistic regression results indicate that infants and older teens, Caucasian children, and those with chronic conditions are more likely to be high-cost utilizers. Increased cost sharing does not reduce cost concentration or average expenditure among high-cost utilizers. These findings suggest that identifying and targeting potentially preventable costs among high-cost utilizers are called for to help reduce costs in public insurance programs.Item Impact of Mental Health Parity & Addiction Equity Act on Costs & Utilization in Alabama's Children's Health Insurance Program(Elsevier, 2018) Sen, Bisakha; Blackburn, Justin; Morrisey, Michael A.; Kilgore, Meredith; Menachemi, Nir; Caldwell, Cathy; Becker, David; Health Policy and Management, School of Public HealthObjective: The Mental Health Parity and Addiction Equity Act (MHPAEA) of 2008 mandates equivalent insurance coverage for mental-health (MH) and substance-use disorders (SUD) to other medical and surgical services covered by group insurance plans, Medicaid and Children's Health Insurance Programs (CHIP). We explored the impact of MHPAEA on enrollees in ALL Kids, the Alabama CHIP. Methods: We use All Kids claims data for October 2008-December 2014. October 2008 through September 2009 marks the period prior to MHPAEA implementation. We evaluated changes in MH/SUD related utilization and program costs, and changes in racial/ethnic disparities in the use of MH/SUD services for ALL Kids enrollees, using two-part models. This allowed analyses of changes from no use to any use, as well as in intensity of use. Results: No significant effect is found on overall MH service-use. There are statistically significant increases in for inpatient visits and length of stay, and some increase in overall MH costs. These increases may not be clinically important, and are concentrated in 2009-2011. Disparities in utilization between African-American and non-Hispanic white enrollees are somewhat exacerbated, while disparities between other minorities and non-Hispanic whites are reduced. Conclusions: Findings indicate that MHPAEA led to a 14.3% increase in inpatient visits, a 12.5% increase in length of inpatient stay, and a 7.8% increase in MH costs. The increases appear limited to 2009-2011, suggesting existing pent-up ‘needs’ among enrollees for added MH/SUD services that resulted in a temporary spike in service use and cost immediately after MHPAEA, and which subsequently subsided.Item Mood Disorder Episodes & Diagnosis in Different Settings: What Can We Learn?(Juniper, 2018) Sen, Bisakha; Blackburn, Justin; Morrisey, Michael A.; Kilgore, Meredith; Menachemi, Nir; Caldwell, Cathy; Becker, David; Health Policy and Management, School of Public HealthObjective: Over the past two decades in proportion of costs of mood disorders among children paid for by government insurance programs has increased substantially. The objective of this study is to gain a more in-depth understanding of patterns of mood disorder diagnosis (MDOD) among enrollees in the Alabama Children’s Health Insurance Program, ALL Kids. Method: A retrospective study using claims data from ALL Kids from 2008-2014 was conducted. The proportion of ‘initial’ MDOD incidents occurring in different care settings (inpatient/ED, physician’s office, outpatient), and the predictors of these incidents, were investigated. Patterns of repeated MDOD inpatient/ED incidents were examined. Results: Multinomial logistic regression results show black enrollees have higher relative risk ratios (RRR) of having a MDOD in inpatient/ED setting (RRR: 1.52, p< 0.01), as do Hispanics (RRR: 1.30, p< 0.01). Enrollees who receive the initial diagnosis in an inpatient/ED setting are at high risk of subsequent MDOD incidents in an inpatient setting/ED. There is no significant racial or ethnic difference in the subsequent number of inpatient/ED visits conditional on the location of the initial diagnosis. Conclusions: The pattern of repeated MDOD incidents in inpatient/ED settings may be indicative of acuity of conditions, lack of access to alternate sources of care for mood disorders, or poor adherence to treatment and inadequate home care. Enrollees who do have such an incident may be strong candidates for case management, potentially improving enrollee outcomes as well as reducing program costs by averting avoidable inpatient/ED MDOD incidents.Item Pediatric dental care utilization and parent/caregiver-rated oral health among Medicaid enrollees in Alabama(American Dental Association, 2020-06) Blackburn, Justin; Bennett, Aleena; Fifolt, Matt; Rucks, Andrew; Taylor, Heather; Wolff, Paul; Sen, BisakhaBackground: Reducing caries and improving access to dental care is a public health challenge. Understanding low use of dental care is of critical importance. This study estimated parent- or caregiver-reported prevalence and identified factors associated with children's dental care use, including the association with children's oral health. Methods: A cross-sectional analysis of children enrolled in Medicaid in Alabama, using data from the 2017 statewide Consumer Assessment of Healthcare Providers and Systems Health Plan Survey, was conducted. Associations were measured using adjusted prevalence ratios (aPRs) and 95% confidence intervals (CIs) from logit regression and generalized linear model postestimation of least-squares means. Results: The 6-month prevalence of children receiving dental care was 70.4%. Children aged 0 through 3 years (aPR, 0.72; 95% CI, 0.53 to 0.91) had lower prevalence of care than other age groups. The prevalence of low-rated oral health was 9.2%. Low-rated oral health was associated with not receiving dental care (aPR, 1.50; 95% CI, 1.12 to 1.87) and parental education of 8th grade or less (aPR, 2.59; 95% CI, 1.20 to 3.98). Falsification tests determined that dental care use was not associated with ratings for overall health (aPR, 1.18; 95% CI, 0.83 to 1.52) or emotional health (aPR, 1.06; 95% CI, 0.79 to 1.33). Conclusions: It was observed that children not receiving dental care had low-rated oral health; however, as a cross-sectional study, it was not possible to assess the temporality of this relationship. Practical implications: Oral health care providers should continue to recognize their role in educating parents and providing anticipatory guidance on children's oral health.Item The Relationship Between Dental Provider Density and Receipt of Dental Care Among Medicaid-enrolled Adults(Johns Hopkins University, 2024) Taylor, Heather L.; Menachemi, Nir; Holmes, Ann; Sen, Bisakha; Schleyer, Titus; Blackburn, Justin; Health Policy and Management, Richard M. Fairbanks School of Public HealthObjective: We sought to measure the association of dental provider density and receipt of dental care among Medicaid-enrolled adults. Methods: We used four years of Indiana Medicaid claims and enrollment data (2015 to 2018) and the Area Health Resources File to examine the relationship between any dental visit (ADV) or any preventive dental visit (PDV) and three county-level measures of dental provider density (the total number of Medicaid-participating dentists, a binary indicator of a federally qualified health center (FQHC) with a Medicaid-participating dentist, and the overall county dentist-to-population ratio). Results: The likelihood of ADV or PDV increased with greater density of Medicaid-participating dentists as well as dentists accepting Medicaid working at an FQHC within the county. The overall dentist-to-population ratio was not associated with dental care use among the adult Medicaid population. Conclusion: Dentist participation in Medicaid program may be a modifiable barrier to Medicaid-enrolled adults' receipt of dental care.