Objective
To develop and validate rates of potentially preventable emergency department (ED) visits as indicators of community health.
Stanford Health Policy’s Douglas K. Owens has been appointed vice chair of the U.S. Preventive Services Task Force, an independent, volunteer panel of national experts in prevention and evidence-based medicine.
Owens, the Henry J. Kaiser, Jr. Professor at Stanford University is a general internist at the VA Palo Alto Health Care System, and a professor of medicine, health research and policy, and management science and engineering at Stanford.
He is the director of the Center for Health Policy in the Freeman Spogli Institute for International Studies, where he is also a senior fellow, and the Center for Primary Care and Outcomes Research in the Department of Medicine and School of Medicine, and Associate Director of the Center for Innovation to Implementation at the VA Palo Alto Health Care System.
“Through his stellar work, Dr. Owens enables Stanford Medicine to advance its mission to precisely predict and prevent disease,” said Lloyd Minor, MD, dean of the Stanford School of Medicine. “As our country faces an increasingly diverse, aging patient population and rising health care costs, I am thrilled that Dr. Owens will contribute his perspective and expertise to this national task force.”
Owens served a previous four-year term on the independent, volunteer panel of national experts in prevention and evidence-based medicine. He will serve for two years as vice chair and then a year as chair. Members come from health-related fields ranging from internal medicine, family medicine, pediatrics, behavioral health, obstetrics/gynecology, and nursing.
The task force issues preventive care guidelines based on detailed assessment of the evidence about preventive interventions and is supported by the Agency for Healthcare Research and Quality within the U.S. Department of Health and Human Services.
“It’s humbling because the task force guidelines impact virtually every primary care patient in the United States,” said Owens, who is also past president of the Society for Medical Decision Making. “Having an unbiased, independent assessment of the benefits and harms of preventive services is very important for primary care clinicians and patients.”
The task force works to improve American’s health by making evidence-based recommendations about clinical preventive services such as screenings, counseling services and preventive medications. Its members have tackled everything from whether to screen for certain cancers, which medications should be taken to prevent diseases and reduce blood pressure and high cholesterol, and screening for infectious diseases, including HIV, HCV, TB, syphilis and other sexually transmitted diseases.
“We are honored to welcome Dr. Owens back to the task force in a leadership role,” said task force chair David C. Grossman, MD, MPH, a senior investigator and medical director for population health strategy at the Group Health Research Institute.
“His experience in guideline development, both with the task force and partner organizations, and his work in evidence-based medicine and clinical decision-making are valuable additions to our leadership team,” Grossman said.
The task force, for example, just released its draft guideline on prostate cancer screening. And some of the medical topics under development are screening for cervical and BRCA-related cancer, as well as pre-exposure prophylaxis for HIV infection.
Owens said that it was critical that the task force remains unbiased and independent. The 16 volunteer members who are nationally recognized experts in prevention, evidence-based medicine and primary care, carefully evaluate the science behind preventive interventions.
“The task force has very rigorous methods for assessing evidence, and we are fortunate to have state-of-the-art evidence reviews provided by AHRQ funded Evidence-Based Practice Centers,” he said.
Each year, the task force makes a report to Congress that identifies critical evidence gaps in research related to clinical prevention services and recommends priority areas that deserve further explanation. All their reports and recommendations are made public on the task force website and leave room for public comment.
The Journal of General Internal Medicine (JGIM) has appointed Stanford Health Policy’s Steve Asch as an editor-in-chief.
JGIM is the highest rated journal for primary care research in the world. It publishes research on health services, implementation science, medical education and the humanities in addition to primary care.
“Steve is widely known as an outstanding writer and editor, and as having very broad methodological expertise,” said Douglas Owens, director of the Center for Health Policy/Primary Care and Outcomes Research. “He's a terrific choice to lead JGIM.”
Asch’s work focuses on quality improvement, and he has lead several national projects to develop tools that measure quality of care for veterans, Medicare users and the public. An avid mentor, Asch has trained dozens of physician fellows in health services research at Stanford and the VA system.
“We’re going to try to get research out there where it can make a difference in the world,” said Asch.
The editor team plans to focus more on best practices and implementation science. By combining the efforts of many researchers, they hope to ensure that doctors get the best answers to the big questions in health care.
“I think it’s going to be fun,” said Asch.
He looks forward to mentoring researchers to submit articles to journals like JGIM.
“Primary care is important,” said Asch. “As the health-care system transforms, it will play an increasingly important role, and the journal is very much in the lead in trying to publish new ways of organizing primary care.”
Most civilian casualties in war are not the result of direct exposure to bombs and bullets; they are due to the destruction of the essentials of daily living, including food, water, shelter, and health care. These “indirect” effects are too often invisible and not adequately assessed nor addressed by just war principles or global humanitarian response. This essay suggests that while the neglect of indirect effects has been longstanding, recent technical advances make such neglect increasingly unacceptable: 1) our ability to measure indirect effects has improved dramatically and 2) our ability to prevent or mitigate the indirect human toll of war has made unprecedented progress. Together, these advances underscore the importance of addressing more fully the challenge of indirect effects both in the application of just war principles as well as their tragic human cost in areas of conflict around the world.
To develop and validate rates of potentially preventable emergency department (ED) visits as indicators of community health.
Agency for Healthcare Research and Quality, Healthcare Cost and Utilization Project 2008–2010 State Inpatient Databases and State Emergency Department Databases.
Empirical analyses and structured panel reviews.
Panels of 14–17 clinicians and end users evaluated a set of ED Prevention Quality Indicators (PQIs) using a Modified Delphi process. Empirical analyses included assessing variation in ED PQI rates across counties and sensitivity of those rates to county-level poverty, uninsurance, and density of primary care physicians (PCPs).
ED PQI rates varied widely across U.S. communities. Indicator rates were significantly associated with county-level poverty, median income, Medicaid insurance, and levels of uninsurance. A few indicators were significantly associated with PCP density, with higher rates in areas with greater density. A clinical and an end-user panel separately rated the indicators as having strong face validity for most uses evaluated.
The ED PQIs have undergone initial validation as indicators of community health with potential for use in public reporting, population health improvement, and research.
Like any energetic 7-year-old, your daughter loves running around outside, playing with her friends and kicking around a soccer ball. So you’re concerned when she starts losing energy. She looks pale and refuses to eat. You take her to the pediatrician, and her test results show the worst: she has leukemia. Once you work through the shock, you do you what any parent would do: find the best possible care to get her through it. But where do you go?
Health care for children is different from care for adults. Treating kids requires doctors who are experienced with their unique needs, and according to Stanford pediatricians Paul Wise and Lisa Chamberlain, this experience is developed and lives in children’s hospitals.
And these facilities are highly dependent on Medicaid.
“Children are the poorest segment of the United States population,” said Wise, a Stanford Health Policy core faculty member.
Nearly one out of every five children lives below the poverty line, according to the United States Census Bureau. Very few children need extensive health care, but of those that do, about 44 percent rely on Medicaid or other public insurance programs.
Because so many of their patients use Medicaid, these children’s hospitals need reimbursements from the program to support their services. Without this income, some might have to downsize or even shut down, and if they do, services would suffer for all children.
“If you want to kill rich kids, cut Medicaid,” said Wise. “If you’re a rich kid with a serious chronic problem, you’re going to want facilities that provide high-quality care. Those facilities are intensely dependent on Medicaid.”
If the American Health Care Act (the Republican replacement for Obamacare) passes Congress, Medicaid will convert to a per capita cap system. Instead of providing coverage to all who meet its criteria — which is primarily based on income and need — the federal government would cap how much money the federal government could provide each person.
Wise and Chamberlain worry that a set amount allocated for states or individuals would not be able to keep up with health industry inflation, causing payments to effectively decrease over time. They are also concerned that children would be particularly affected by these changes because their medical needs are so different from adults’.
“Caring for seriously ill children requires a wide range of services and specialists, from pediatric surgeons to speech therapists to hospital teachers who make sure kids don’t fall behind,” said Chamberlain. “In pediatrics we work as a team — and cutting Medicaid will reduce our ability to do that.”
Not only would the funds available for child health coverage erode, but according to Wise, the focus on adult health concerns in the emerging Medicaid changes could, without immediate attention, undermine 40 years of progress in developing strong, regionalized child health systems.
Providing for children’s needs should be simple because their expenditures are relatively low. Child health care makes up less than nine percent of all federal health expenditures in the United States.
But because the health policy debate in the United States focuses on older populations, children are often left out.
“I think it’s really important that we have these conversations about the unique needs of children,” said Chamberlain.
Wise and Chamberlain hope to alert policy-makers to the fiscal needs of children and how they affect care for all kids.
“Our elected officials have to cope with a wide range of issues, and they welcome engaged professionals exchanging ideas about active legislation,” said Chamberlain. “Those conversations really matter – now is the time to let them hear what we think.”
To hear more from Wise and Chamberlain about child health and Medicaid, listen to their podcast on World Class:
Non-communicable diseases such as heart and respiratory disease, cancer, obesity and diabetes are now responsible for some two-thirds of premature deaths around the world. And most of those are in low- and middle-income countries.
The United Nations has estimated that on top of the social and psychological burdens of chronic disease, the cumulative loss to the global economy could reach $47 trillion by 2030 if things remain status quo.
“That was a big whopper of a number and got a lot of attention, and that was good because it raised awareness,” said Rachel Nugent, vice president for global non-communicable diseases (NDCs) at the research institute RTI International.
“It’s an issue that is driven by a lot of different factors, “ she said. “And understanding how the larger social and economic factors affect NDCs, at a policy level, very little progress has been made — there’s been very little collaboration.”
Nugent was addressing the fourth annual Global Health Economics Colloquium at University of California San Francisco, with health experts, policymakers, students and researchers from Stanford, Berkeley and UCSF who gather every year to take a deep dive into the economics of a global health issue. More than 200 experts from 10 universities and public health departments attended the conference.
The daylong gathering focused on recent developments in the economics of NDCs, looking at case studies from around the world, and new guidelines for cost-effectiveness analysis and the role of economics in reducing health inequality.
“The donors are not convinced that there are cost-effective things that we can do in these countries; a lot of them are very skeptical that this is affecting the poor,” said Nugent, a member of the World Health Organization’s expert advisory panel on the management of NCDs.
In India, for example, much of the population still defecates outdoors, contaminating water sources and agricultural products, which can lead to malnutrition and physical and cognitive disorders. Many donors would rather see funds go to building latrines as they can see tangible results; NDC prevention is a long-term slog.
“But I don’t think we should necessarily think of NDCs as either-or,” said Nugent. “I think that integration of services and programming is very much at the forefront of what is the right way to go.”
Cost-effectiveness Analyses
Nugent’s research has shown five cost-effective interventions would avert more than 5 million premature deaths from NCDs by 2030, or a reduction of 28.5 percent in projected mortality from chronic disease around the world. And the average benefit-cost ratio is 9:1, at a global cost of $8.5 billion a year.
The interventions are raising the price of tobacco products by 125 percent through taxation; providing aspirin to 75 percent of those suffering from acute myocardial infarction; reducing salt intake by 30 percent; reducing the prevalence of high blood pressure with low-cost hypertension medication; and providing preventive drug therapy to 70 percent of those at high risk of heart disease.
Gillian Sanders-Schmidler, a professor of medicine at Duke University Medical Center and former assistant professor of medicine at Stanford Health Policy’s Center for Primary Care and Outcomes Research, addressed the colloquium about recommendations of the Second Panel on Cost-Effectiveness in Health and Medicine.
“There is a continued emphasis on transparency and comparability across analyses,” said Sanders-Schmidler. “And of course the big changes are that we’re now asking for a second reference case and using an ‘impact inventory’ table to clarify the scope of the findings.”
The independent panel of non-government scientists and scholars, which also included Stanford Health Policy’s Douglas K. Owens, focused on new ways to deliver health care effectively, yet with a focus on efficiency, as health care spending in the United States has reached 18 percent of GDP, much greater than the global average of 10 percent.
The first panel that convened in 1996 recommended that all cost-effectiveness analyses of health interventions include a reference case that uses standard methodological practices to improve comparability and quality. The second panel, which published its findings in September, now recommends that in addition to the societal perspective recommended by the original panel, that CEAs include a second reference case that looks at the health-care sector impact of an intervention. Additional guidance was given on what to include in the societal perspective reference case.
The panel wrote in its JAMA “special communication” that these societal reference cases should include medical costs “borne by third-party payers and paid out-of-pocket by patients, time costs of patients in seeking and receiving care, time costs of informal (unpaid) caregivers, transportation costs, effects on future productivity and consumption, and other costs and effects outside the health-care sector.”
They found most countries, including the United States, give greater weight to clinical evidence in their cost-effectiveness analyses. The panel now recommends an “impact inventory” that helps analysts and end-users of cost effectiveness analyses look at the impact of interventions beyond the formal health-care sector.
“We’re trying to ask people to be explicit,” said Owens, director of the Center of Primary Care and Outcomes Research and Center for Health Policy at Stanford.
“We want them to look at how to value outcomes in a societal perspective, not just the health-care sector, to look at all these other sectors such as productivity consumption, criminal justice, education, housing and the environment,” he said.
Case Studies
Several case studies presented at the colloquium indicated that policy changes, government intervention and social factors are key to preventing obesity and diabetes and other NCDs.
Kristine Madsen, an associate professor of public health at UC Berkeley who focuses on childhood obesity, spoke about the nation’s first “soda tax” on sugar-sweetened beverages, which was implemented in Berkeley in March 2015.
The city has seen a 21 percent decline in the drinking of soda and other sugary drinks in low-income neighborhoods after the city levied a penny-per-ounce tax on sodas and sugary drinks. At the same time, according to a study in the American Journal of Public Health, neighboring San Francisco — where a similar soda-tax measure was defeated — and Oakland saw a 4 percent increase in the purchase of sweetened beverages.
“This decline of 21 percent in Berkeley represents the largest public health impact in an intervention that I have ever seen,” said Madsen.
Sergio Bautista of the Mexico National Institute of Public Health and UC Berkeley, said that Mexico’s sugary drinks tax implemented in January 2014 is expected to lead to a 10 percent reduction in sugary drinks consumption and prevent an estimated 189,300 cases of diabetes in a country famed for its sugary bottled cola.
William Dow, a professor of health policy management at UC Berkeley, shared his research on Costa Rica, where on average people live longer than Americans, despite the several times higher income and 10 times higher health expenditures in the United States.
Costa Rican men have a life expectancy of 77 and the women typically live until age 82; in Americans the numbers are 76 and 81, respectively. Obesity is low among Costa Rican men and few of their women smoke. Lung cancer mortality in the United States is four times higher among men and six times higher among women.
“It’s remarkable in so many ways,” Dow said, noting that deaths in the Central American country are due predominantly to infectious disease. “Does Costa Rica have any unique effective programs to emulate, or is there something going on upstream driving those health outcomes?”
He believes Costa Rica’s national health insurance and excellent access to primary care for nearly all its people are key. Having this guaranteed lifetime access to health care also reduces the stress and depression that can so badly harm physical health.
“And I would argue that probably diet is one of the most important things going on here,” said Dow, noting their diets are healthy.
Costa Ricans eat mostly unprocessed foods such as rice and black beans, corn tortilla, yam and squash, with little meat and plenty of fresh fruit.
“They also have the highest remaining life expectancy at age 80 of any country in the world, he said. “What we have learned in Costa Rica would be helpful in many other countries.”
Please note: All research in progress seminars are off-the-record by default. Any information about methodology and/or results are embargoed until publication.
Over the last several decades, Emergency Medical Service (EMS) has become an important component of health care service. The main performance indicator in the EMS setting is the response time, i.e. the time to reach the patient once an ambulance is requested. Policy makers adopt a response time criteria to set the standards of this service, and the push to reduce it is justified by the assumed link between longer response time and worse health outcomes. However, current literature finds weak to no relation and this knowledge gap has been recently attributed to the endogeneity of response time. Indeed, the ambulance driver may take actions that result in shorter responses for most critical cases, and this unobserved behavior creates a downward bias in the results up to the point of finding zero effect. In line with previous literature, my analysis is performed on patients affected by cardiovascular disease, i.e. the time sensitive pathology adopted by policy makers to set the EMS standards in terms of response times and the main cause of death in developed countries. In my work I exploit changes in the amount of hourly rainfall and rationalization of emergency personnel during night shifts (i.e. 8pm to 7am) as instruments for response time. I document that a minute increase in response time results in a 2% increase in the probability of highly severe health conditions at the ambulance arrival on the scene and by 0.4% rise in the probability of death by the arrival at the hospital. Finally, I discuss and rank alternative solutions that may be implemented by policy makers to improve EMS performances.
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Elena Lucchese is a Ph.D. student in Economics at the University of Bologna (Italy). She is currently doing research at Stanford University in the Center for Health Policy and the Center for Primary Care and Outcomes Research (CHP/PCOR). Her research interests are applied micro-economics, health economics and economics of education. In 2016, she was awarded a "Young Researcher Best Paper Award" by the Italian Health Economics Association for her work on the Effect of Ambulance Response Time on Cardiovascular Severity. In 2014, she also received a 14,000 euros grant from Eurizon Capital SGR as a Principal Investigator for her research project on the Efficiency of Public Spending in Europe. She is the president of the association "L'Osteria Volante", funded by the University of Padova, which promotes debates on economics, politics, and environmental issues (www.losteriavolante.it).
As the leading cause of death for young people in the United States, traffic accidents are a major risk to health. Around the world, they kill 1.3 million people per year and seriously injure more than 80 million. David Studdert, a professor of medicine and law and a Stanford Health Policy core faculty member, wanted to bring those numbers down. In his study, "Exploring the relationship between traffic citation history and crash risk among elderly drivers in Florida," Studdert looked for a way to find high-risk drivers based on demographics and driving records. He found that drivers who have a quick succession of traffic violations or have particular types of violations may be at a higher risk to cause serious accidents. Studdert hopes to use the study's results to make driving safer without encroaching on civil liberties.
I remember two things about my patient, Maria, a tiny baby who was born a little early. One was her large, beautiful eyes. The other was that when I put my stethoscope on her chest, I heard an enormous heart murmur. Maria had been born with a serious heart condition that would change her life and the life of her mom.
Good patient care at a time like this involves much more than treating a child’s heart. At that first appointment, Maria (not her real name), her mother and I began a long journey punctuated by multiple hospitalizations, surgeries and procedures.
Maria was born at Lucile Packard Children’s Hospital Stanford and lived with her mom in East Palo Alto. As her general pediatrician at Ravenswood Family Health Center, I came to know them both well. I focused on helping the tiny infant gain weight, so that she would be strong enough to undergo her heart surgeries. We brought in the Women, Infants and Children program to support her nutrition. I explained to her mom what the surgeries would do. I reviewed what Maria’s medicines were for, and when her mother couldn’t pay for them I helped gain authorization from county staff, who were able to get them dispensed at the pharmacy. When I realized Maria’s mom didn’t have enough money for food (due to many absences at work), I made sure she applied for food stamps.
My experience with Maria coincided with my research at Stanford involving access to care for kids in California. As a result of the research, I spent part of my time in Sacramento, working with legislators on changes to the California Children’s Services program. This program is critical to the care of low-income children with serious medical conditions. My research, which involved analyzing data on publicly insured pediatric care like Maria’s, showed that access to high-quality care for low-income kids was pretty good in California compared with other states, but that there was variation among its 58 counties.
While working on the program’s reform in Sacramento, I spent time in countless staff meetings, public hearings and hallway discussions. I often thought about Maria, whose life depended on CCS. The research data I brought to these negotiations were as important as sharing Maria’s story — how her mother lost her job because of time spent caring for her fragile daughter, how the family sank more deeply into poverty and how services needed to be more focused on families. As changes to the CCS system were being discussed, I imagined how they would benefit or hinder Maria’s care and her future.
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