Health and Medicine

FSI’s researchers assess health and medicine through the lenses of economics, nutrition and politics. They’re studying and influencing public health policies of local and national governments and the roles that corporations and nongovernmental organizations play in providing health care around the world. Scholars look at how governance affects citizens’ health, how children’s health care access affects the aging process and how to improve children’s health in Guatemala and rural China. They want to know what it will take for people to cook more safely and breathe more easily in developing countries.

FSI professors investigate how lifestyles affect health. What good does gardening do for older Americans? What are the benefits of eating organic food or growing genetically modified rice in China? They study cost-effectiveness by examining programs like those aimed at preventing the spread of tuberculosis in Russian prisons. Policies that impact obesity and undernutrition are examined; as are the public health implications of limiting salt in processed foods and the role of smoking among men who work in Chinese factories. FSI health research looks at sweeping domestic policies like the Affordable Care Act and the role of foreign aid in affecting the price of HIV drugs in Africa.

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The current focus of the health reform debate is rightfully beginning to shift to the need to transform the delivery system to contain the long run growth in costs. Although much of the debate still focuses on the role of a public plan, this ignores the need for fundamental change. None of the options on the table will transform the delivery system. If passed, the best the current proposals could do is to expand enrollment and perhaps contain federal costs, but on its own the public plan will be unable to make the delivery system more efficient.

To control health care costs, I propose a publicly chartered major risk pool, or MRP, that
will allow plans to pool risk, thereby eliminating the need for wasteful underwriting and
selective marketing costs. Participation in the MRP by both providers and insurers is
voluntary. It can be combined with any public option in an exchange implemented at the
federal or state level; it can even work without a public option. After a brief transition
period, the MRP requires no federal funds and will not be “on budget.” By allowing private plans to play a role in a transformed insurance and delivery system, the MRP can be politically attractive to a broader constituency than any of the current proposals.

The MRP addresses a key component of comprehensive health reform: restructuring the
delivery system. It is not a simple reinsurance pool that reimburses health plans for high costclaims. Instead, it creates a reformed payment system for both inpatient care and outpatient chronic care that will encourage efficiency and quality. The MRP will cover inpatient and similar short but expensive episodes, as well as chronic illness management. Its new payment approaches will achieve the efficiency goals promised by proposals for hospital medical staff-focused Accountable Care Organizations, but in an organizationally more plausible manner. Hospitals and physicians who focus on inpatient care and voluntarily form Care Delivery Teams will receive bundled episode-based payments, but the MRP will pay providers regardless of whether they belong to a Care Delivery Team, although at less attractive rates. Providers in these teams can use their bargaining power to charge the primary insurers more than the MRP pays. The MRP’s payments for monthly chronic illness management will give health plans and primary care physicians the incentives, flexibility, and information to more effectively compensate clinicians for the care they deliver and coordinate. By being publicly chartered, but independent of Congress, and by allowing options for all players, the MRP will be able to sidestep the ability of special interests to block change.

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Publication Type
Policy Briefs
Publication Date
Journal Publisher
Berkeley Center on Health, Economic & Family Security
Authors
Harold S. Luft
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The prevalence of obesity has been rising dramatically in the U.S., leading to poor health and rising health care expenditures. The role of policy in addressing rising rates of obesity, however, is controversial. Policy recommendations for interventions intended to influence body weight decisions often assume the obesity creates negative externalities for the non-obese. We build on earlier work demonstrating that this argument depends on two important assumptions:

  1. that the obese do not pay for their higher medical expenditures through differential payments for health care and health insurance, and
  2. that body weight decisions are responsive to the incidence of medical care costs associated with obesity.

In this paper, we test the latter proposition – that body weight is influenced by insurance coverage - using two approaches. First, we use data from the Rand Health Insurance Experiment, in which people were randomly assigned to varying levels of health insurance, to examine the effect of generosity of insurance coverage on body weight along the intensive coverage margin. Second, we use instrumental variables methods to estimate the effect of type of insurance coverage (private, public and none) on body weight along the extensive margin. We explicitly address the discrete nature of the endogenous indicator of health insurance coverage by estimating a nonlinear instrumental variables model. We find weak evidence that more generous insurance coverage increases body mass index. We find stronger evidence that being insured increases body mass index and obesity.

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Publication Type
Working Papers
Publication Date
Journal Publisher
National Bureau of Economic Research working paper series
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Clinical research presents health care providers with information on the natural history and clinical presentations of disease as well as diagnostic and treatment options. Consumers, patients, and caregivers also require this information to decide how to evaluate and treat their conditions. All too often, the information necessary to inform these medical decisions is incomplete or unavailable, resulting in more than half of the treatments delivered today lacking clear evidence of effectiveness.

Comparative effectiveness research (CER) identifies what works best for which patients under what circumstances. Congress, in the American Recovery and Reinvestment Act (ARRA) of 2009, tasked the Institute of Medicine (IOM) to recommend national priorities for research questions to be addressed by CER and supported by ARRA funds. In its 2009 report, Initial National Priorities for Comparative Effectiveness Research, the authoring committee establishes a working definition of CER, develops a priority list of research topics to be undertaken with ARRA funding using broad stakeholder input, and identifies the necessary requirements to support a robust and sustainable CER enterprise. The full list of priorities and recommendations can be found in the below report brief.

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Publication Type
Policy Briefs
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Institute of Medicine's Committee on Comparative Effectiveness Research Prioritization
Authors
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Objectives To assess the concurrent validity and responsiveness of the Health Utility Index 3 (HUI3) in patients with advanced HIV/AIDS, and to determine the responsiveness of this measure, the MOS-HIV and EQ-5D to HIV-related clinical events.

Methods Data from the OPTIMA (OPTions In Management with Antiretrovirals) trial was analyzed. Two aspects of the validity of the HUI3 were considered: concurrent validity was evaluated using Spearman correlations with MOS-HIV component and summary scores. Responsiveness to AIDS-defining events (ADE) and all adverse events (our external change criterion) was assessed using area under the receiver operating characteristic (AUROC) curves.

Results The study enrolled 368 patients (mean follow-up: 3.66 years); 82% had at least one severe adverse event and 27% had at least one ADE. The HUI3 scale and items showed good concurrent validity, with 85% of the expected relationships with the MOS-HIV subscales verified. The HUI3 was responsive to both adverse events (AUROC [95%CI]: 0.68 [0.57, 0.80]) and ADEs (0.62 [0.51, 0.74]). The EQ-5D was responsive to ADEs (0.66 [0.56, 0.76]), but not responsive to adverse events (0.56 [0.46, 0.68]).

Conclusion The HUI3 is a valid and responsive measure of the change in HRQoL associated with clinical events in an advanced HIV/AIDS population.

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Publication Type
Journal Articles
Publication Date
Journal Publisher
Quality of Life Research
Authors
Mark Holodniy
Douglas K. Owens
Number
0962-9343
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To compare health care access, utilization, and perceived health status for children with SHCN in immigrant and nonimmigrant families. This cross-sectional study used data from the 2003 California Health Interview Survey to identify 1404 children (ages 0-11) with a special health care need. Chi-square and logistic regression analyses were used to examine relations between immigrant status and health access, utilization, and health status variables. Compared to children with special health care needs (CSHCN) in nonimmigrant families, CSHCN in immigrant families are more likely to be uninsured (10.4 vs. 4.8%), lack a usual source of care (5.9 vs. 1.9%), report a delay in medical care (13.0 vs. 8.1%), and report no visit to the doctor in the past year (6.8 vs. 2.6%). They are less likely to report an emergency room visit in the past year (30.0 vs. 44.0%), yet more likely to report fair or poor perceived health status (33.0 vs. 16.0%). Multivariate analyses suggested that the bivariate findings for children with SHCN in immigrant families largely reflected differences in family socioeconomic status, parent's language, parental education, ethnicity, and children's insurance status. Limited resources, non-English language, and limited health-care use are some of the barriers to staying healthy for CSHCN in immigrant families. Public policies that improve access to existing insurance programs and provide culturally and linguistically appropriate care will likely decrease health and health care disparities for this population.

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Publication Type
Journal Articles
Publication Date
Journal Publisher
Maternal and Child Health Journal
Authors
Lynne C. Huffman
Fernando S. Mendoza
Paul H. Wise
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Background Optimal treatment for patients with both type 2 diabetes mellitus and stable ischemic heart disease has not been established.

Methods We randomly assigned 2368 patients with both type 2 diabetes and heart disease to undergo either prompt revascularization with intensive medical therapy or intensive medical therapy alone and to undergo either insulin-sensitization or insulin-provision therapy. Primary end points were the rate of death and a composite of death, myocardial infarction, or stroke (major cardiovascular events). Randomization was stratified according to the choice of percutaneous coronary intervention (PCI) or coronary-artery bypass grafting (CABG) as the more appropriate intervention.

Results At 5 years, rates of survival did not differ significantly between the revascularization group (88.3%) and the medical-therapy group (87.8%, P=0.97) or between the insulin-sensitization group (88.2%) and the insulin-provision group (87.9%, P=0.89). The rates of freedom from major cardiovascular events also did not differ significantly among the groups: 77.2% in the revascularization group and 75.9% in the medical-treatment group (P=0.70) and 77.7% in the insulin-sensitization group and 75.4% in the insulin-provision group (P=0.13). In the PCI stratum, there was no significant difference in primary end points between the revascularization group and the medical-therapy group. In the CABG stratum, the rate of major cardiovascular events was significantly lower in the revascularization group (22.4%) than in the medical-therapy group (30.5%, P=0.01; P=0.002 for interaction between stratum and study group). Adverse events and serious adverse events were generally similar among the groups, although severe hypoglycemia was more frequent in the insulin-provision group (9.2%) than in the insulin-sensitization group (5.9%, P=0.003).

Conclusions Overall, there was no significant difference in the rates of death and major cardiovascular events between patients undergoing prompt revascularization and those undergoing medical therapy or between strategies of insulin sensitization and insulin provision. (ClinicalTrials.gov number, NCT00006305.)

The members of the writing group (Robert L. Frye, M.D., Mayo Clinic, Rochester, MN; Phyllis August, M.D., M.P.H., New York Hospital Queens, Queens, NY; Maria Mori Brooks, Ph.D., Regina M. Hardison, M.S., Sheryl F. Kelsey, Ph.D., Joan M. MacGregor, M.S., and Trevor J. Orchard, M.B., B.Ch., University of Pittsburgh, Pittsburgh; Bernard R. Chaitman, M.D., Saint Louis University, St. Louis; Saul M. Genuth, M.D., Case Western Reserve University, Cleveland; Suzanne H. Goldberg, R.N., M.S.N., National Heart, Lung, and Blood Institute, Bethesda, MD; Mark A. Hlatky, M.D., Stanford University, Palo Alto, CA; Teresa L.Z. Jones, M.D., National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD; Mark E. Molitch, M.D., Feinberg School of Medicine, Northwestern University, Chicago; Richard W. Nesto, M.D., Lahey Clinic Medical Center, Burlington, MA; Edward Y. Sako, M.D., Ph.D., University of Texas Health Science Center, San Antonio; and Burton E. Sobel, M.D., University of Vermont, Burlington) assume responsibility for the overall content and integrity of the article.

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Publication Type
Working Papers
Publication Date
Journal Publisher
New England Journal of Medicine
Authors
Mark A. Hlatky
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Objective To evaluate the evidence that quality improvement (QI) strategies can improve the processes and outcomes of outpatient pediatric asthma care.

Data Sources Cochrane Effective Practice and Organisation of Care Group database (January 1966 to April 2006), MEDLINE (January 1966 to April 2006), Cochrane Consumers and Communication Group database (January 1966 to May 2006), and bibliographies of retrieved articles.

Study Selection Randomized controlled trials, controlled before-after trials, or interrupted time series trials of English-language QI evaluations.

Interventions Must have included 1 or more QI strategies for the outpatient management of children with asthma.

Main Outcome Measures Clinical status (eg, spirometric measures); functional status (eg, days lost from school); and health services use (eg, hospital admissions).

Results Seventy-nine studies met inclusion criteria: 69 included at least some component of patient education, self-monitoring, or self-management; 13 included some component of organizational change; and 7 included provider education. Self-management interventions increased symptom-free days by approximately 10 days/y (P = .02) and reduced school absenteeism by about 0.1 day/mo (P = .03). Interventions of provider education and those that incorporated organizational changes were likely to report improvements in medication use. Quality improvement interventions that provided multiple educational sessions, had longer durations, and used combinations of instructional modalities were more likely to result in improvements for patients than interventions lacking these characteristics.

Conclusions A variety of QI interventions improve the outcomes and processes of care for children with asthma. Use of similar outcome measures and thorough descriptions of interventions would advance the study of QI for pediatric asthma care.

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Publication Type
Journal Articles
Publication Date
Journal Publisher
Archives of Pediatrics and Adolescent Medicine
Authors
Paul H. Wise
Douglas K. Owens
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Objective: The study examined the influence of parent involvement and family factors on body mass index (BMI) change in a pediatric obesity treatment program.

Methods: A total of 104 children and their caregivers were examined during a 12-week obesity intervention. Participants (mean age = 11.42 years; SD = 2.83) and their caregivers completed measures of family environment and depression prior to enrollment. Children's BMI and parental involvement were rated weekly during the intervention. Logistic regressions were conducted to examine the role of sociodemographic factors, family characteristics, and parent involvement on weight.

Results: Children with the lowest parent involvement were less likely to lose any weight or have clinically significant (>/=2 kg) weight loss. Demographics and family factors did not predict BMI change. Parent involvement related to ethnicity, absences and physical activity.

Conclusions: Parental involvement may be helpful in identifying who is likely to do well in a weight loss program.

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Publication Type
Journal Articles
Publication Date
Journal Publisher
Clinical Pediatrics
Authors
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As pressure builds on the White House and Congress to deliver on their promise of health care reform, the idea of a government health insurance company to compete with for-profit and not-for-profit private companies is gaining political momentum. Advocates claim that this new company would be more efficient, honest, and successful in forcing lower reimbursement rates on physicians and hospitals. However, a close look at how the present health care system functions, what its major problems are, and what reforms are needed to solve them suggests that this new idea is not the answer. The three major problems of the current U.S. system are that 45 million to 50 million people have no health insurance, the cost of care is high and rapidly increasing, and there are gross lapses in the quality of care. There is no reason to think that a government insurance company would make a significant dent in any one of these problems, let alone all three. To do that would require real reform in the financing, organization, and delivery of care.

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Publication Type
Journal Articles
Publication Date
Journal Publisher
New England Journal of Medicine
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