Geoff Barnes is a cardiologist and vascular medicine specialist at the University of Michigan Health System. He completed his undergraduate degree in biomedical engineering at Washington University in St. Louis (2003) followed by medical school at the University of Michigan (2007). He then completed a residency (2010), chief residency (2011) in internal medicine, cardiology fellowship (2014) and vascular medicine fellowship (2014) at the University of Michigan. His areas of research interest include anticoagulation, venous thromboembolism, quality improvement and shared decision making.
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Funded by: NIH
Funding Years: 2016-2021
There is a fundamental gap in understanding how Mild Cognitive Impairment (MCI) influences treatment and Decision Making for serious illnesses, like Cardiovascular disease (CVD), in older patients. Poor understanding of Clinical Decision Making is a critical barrier to the design of interventions to improve the quality and outcomes of CVD care of in older patients with MCI. The long-term goal of this research is to develop, test, and disseminate interventions aimed to improve the quality and outcomes of CVD care and to reduce CVD-related disability in older Americans with MCI. The objective of this application is to determine the extent to which people with MCI are receiving sub-standard care for the two most common CVD events, Acute myocardial infarction (AMI) and acute ischemic stroke, increasing the chance of mortality and morbidity in a population with otherwise good quality of life, and to determine how MCI influences patient preferences and physician recommendations for treatment. AMI and acute ischemic stroke are excellent models of serious, acute illnesses with a wide range of effective therapies for acute management, Rehabilitation, and secondary prevention. Our central hypothesis is that older Adults with MCI are undertreated for CVD because patients and physicians overestimate their risk of dementia and underestimate their risk of CVD. This hypothesis has been formulated on the basis of preliminary data from the applicants' pilot research. The rationale for the proposed research is that understanding how patient preferences and physician recommendations contribute to underuse of CVD treatments in patients with MCI has the potential to translate into targeted interventions aimed to improve the quality and outcomes of care, resulting in new and innovative approaches to the treatment of CVD and other serious, acute illnesses in Adults with MCI. Guided by strong preliminary data, this hypothesis will be tested by pursuing two specific aims: 1) Compare AMI and stroke treatments between MCI patients and cognitively normal patients and explore differences in Clinical outcomes associated with treatment differences; and 2) Determine the influence of MCI on patient and surrogate preferences and physician recommendations for AMI and stroke treatment. Under the first aim, a health services research approach- shown to be feasible in the applicants' hands-will be used to quantify the extent and outcomes of treatment differences for AMI and acute ischemic stroke in older patients with MCI. Under the second aim, a multi-center, mixed-methods approach and a national physician survey, which also has been proven as feasible in the applicants' hands, will be used to determine the influence of MCI on patient preferences and physician recommendations for AMI and stroke treatment. This research proposal is innovative because it represents a new and substantially different way of addressing the important public health problem of enhancing the health of older Adults by determining the extent and causes of underuse of effective CVD treatments in those with MCI. The proposed research is significant because it is expected to vertically advance and expand understanding of how MCI influences treatment and Decision Making for AMI and ischemic stroke in older patients. Ultimately, such knowledge has the potential to inform the development of targeted interventions that will help to improve the quality and outcomes of CVD care and to reduce CVD-related disability in older Americans.
PI: Deborah Levine
CO(s): Darin Zahuranec, MD & Ken Langa, MD, PhD
Tell us what you think about certain public policies designed to reduce the incidence of diabetes in the US.
Please read this hypothetical news article and then answer a few questions at the end.
People with Diabetes Lobby Congress This Week
- strongly disagree
- strongly agree
- strongly disagree
- strongly agree
- strongly disagree
- strongly agree
Generally speaking, do you usually think of yourself as a Republican, a Democrat, an Independent, or what?
- Strong Democrat
- Not so strong Democrat
- Independent, close to Democrat
- Independent, close to Republican
- Not so strong Republican
- Strong Republican
- Don't know, haven't thought much about it
How you answered:
Researchers affiliated with CBDSM and the School of Public Health have found that "Americans' opinions about health policy are polarized on political partisan lines. Democrats and Republicans differ in the ways that they receive and react to messages about the social determinants of health."
In the study, lead author Sarah Gollust, PhD, randomly assigned participants to read one of four hypothetical news articles about type 2 diabetes. Diabetes was used as an example of a common health issue that is widely debated and that is known to have multiple contributing factors, including genetic predisposition, behavioral choices, and social determinants (such as income or neighborhood environments).
The articles were identical except for the causal frame embedded in the text. The article that you read in this Decision of the Month presented social determinants as a cause for type 2 diabetes. Other versions of the article presented genetic predisposition or behavioral choices as a cause for type 2 diabetes, and one version had no causal language.
Dr. Gollust then asked the study participants their views of seven nonmedical governmental policies related to the environmental, neighborhood, or economic determinants of diabetes:
- bans on fast food concessions in public schools
- incentives for grocery stores to establish locations where there are currently few
- bans on trans fat in restaurants
- government investment in parks
- regulating junk food advertisements
- imposing taxes on junk foods
- subsidizing the costs of healthy food
Dr. Gollust also asked participants their political party identification and a number of other self-reported characteristics.
The most dramatic finding of this study was that the news story with the social determinants as a cause for type 2 diabetes had significantly different effects on the policy views of participants, depending on whether they identified themselves as Democrats or Republicans. After reading the social determinants article, Democrats expressed a higher level of support for the proposed public health policies. Republicans expressed a lower level of support for the proposed public health policies. This effect occurred only in the group of participants who were randomly assigned to read the version of the news article with social determinants given as a cause for type 2 diabetes. Dr. Gollust summarizes: "Exposure to the social determinants message produced a divergence of opinion by political party, with Democrats and Republicans differing in their opinions by nearly 0.5 units of the 5-point scale."
The study suggests several possible explanations for these results:
"First, the social determinants media frame may have presumed a liberal worldview to which the Republican study participants disagreed or found factually erroneous (ie, not credible), but with which Democrats felt more comfortable or found more familiar. . . Second, media consumption is becoming increasingly polarized by party identification, and . . . the social determinants message may have appeared particularly biased to Republicans. . .Third, the social determinants frame may have primed, or activated, study participants' underlying attitudes about the social group highlighted in the news article. . . Fourth, participants' party identification likely serves as proxy for . . . values held regarding personal versus social responsibility for health."
Dr. Gollust and her colleagues conclude that if public health advocates want to mobilize the American public to support certain health policies, a segmented communication approach may be needed. Some subgroups of Americans will not find a message about social determinants credible. These subgroups value personal responsibility and find social determinants antagonistic to their worldview. To avoid triggering immediate resistance by these citizens to information about social determinants of health, public health advocates may consider the use of information about individual behavioral factors in educational materials, while working to build public familiarity with and acceptance of research data on social determinants.
For more details about this study:
Funded by Health and Human Services, Department of-National Institutes of Health
Funding Years: 2014 - 2016.
Mexican Americans (MAs) suffer more from stroke than non-Hispanic whites (NHWs). Ischemic stroke is more common in MAs and their neurologic, functional and cognitive outcomes after stroke are worse than in NHWs. The reasons for the disparity in post-stroke outcome are unclear. Pre-stroke function and initial stroke severity are similar between the two groups as are ischemic stroke sub-types. One potential explanation for the worse post-stroke neurologic, functional and cognitive outcome in MAs compared with NHWs is allocation and effectiveness of post-stroke rehabilitation. There is remarkably little data demonstrating whether rehabilitation is dosed differently for MAs compared with NHWs, and still less information about whether, for a given dose of rehabilitative services following stroke, there is differential benefit by ethnicity. The current application will utilize the existing population-based Brain Attack Surveillance in Corpus Christi (BASIC, NSR0138916) project's infrastructure and strong community relations to develop and pilot a method to collect the necessary data to determine the role of rehabilitation in ethnic disparities in post-stroke outcomes. Previous studies have suggested that looking at overall time spent in rehabilitation does not predict post-stroke outcome. However, specific components of physical, occupational and speech therapy, a practice-based approach, has been shown to be associated with stroke outcomes, and these associations have been shown to vary by race. However, this practice-based approach has not been implemented in a population-based manner across the range of settings where stroke patients receive rehabilitation services, and no study has used this approach in an ethnically diverse population. Therefore, our plan is to build on previous work by developing and utilizing a practice-based design in our population-based stroke study. Specifically, we will 1) continue to build the needed relationships with rehabilitation service providers in the community;2) work with local rehabilitation therapists to refine data collection instruments as part of the practice-based design;3) pilot test data collection of specific rehabilitation components of post-stroke rehabilitation across all rehabilitation settings;and 4) analyze this data to determine the feasibility of this approach for a larger study and to provide preliminary data on differences in access and effectiveness by ethnicity. In total, our infrastructure development, refinement of tools to measure specific therapy modalities and pilot testing will position us perfectly to submit an R01 application to identify ethnic differences in access to rehabilitation and specific rehabilitation services associated with improved functional outcome in MAs and NHWs.
PI(s): Lynda Lisabeth, Lewis Morgenstern
Dr. Langa is the Cyrus Sturgis Professor in the Department of Internal Medicine and Institute for Social Research, a Research Scientist in the Veterans Affairs Center for Clinical Management Research, and an Associate Director of the Institute of Gerontology, all at the University of Michigan. He is also Associate Director of the Health and Retirement Study (HRS), a National Institute on Aging funded longitudinal study of 20,000 adults in the United States ( http://hrsonline.isr.umich.edu ).
Kathryn Moseley served as one of the judges at "The Big Ethical Question Slam 5" hosted by a2ethics.org. In addition, Naomi Laventhal, Michele Gornick, Christian Vercler, Lauren Smith, and Lauren Wancata served as judges at the "Michigan Highschool Ethics Bowl 2."
Thanks to all the CBSSM folks who contributed their time!
For more information about these events and other great ethics-related activites, go to a2ethics.org.
A short video about the Highschool Ethics Bowl can be found here.
Should people with more severe health problems receive state funding for treatment before people with less severe health problems? See how your opinion compares with the opinions of others.
Imagine that you are a government official responsible for deciding how state money is spent on different medical treatments. Your budget is limited so you cannot afford to offer treatment to everyone who might benefit. Right now, you must choose to spend money on one of two treatments.
- Treatment A treats a life threatening illness. It saves patients' lives and returns them to perfect health after treatment
- Treatment B treats a different life threatening illness. It saves patients' lives but is not entirely effective and leaves them with paraplegia after treatment. These patients are entirely normal before their illness but after treatment will have paraplegia.
Suppose the state has enough money to offer Treatment A to 100 patients. How many patients would have to offered Treatment B so that you would have difficulty choosing which treatment to offer?
How do your answers compare?
The average person said that it would become difficult to decide which treatment to offer when 1000 people were offered Treatment B.
What if you had made another comparison before the one you just made?
In the study, some people were asked to make a comparison between saving the lives of otherwise-healthy people and saving the lives of people who already had paraplegia. After they made that comparison, they made the comparison you just completed. The average person in that group said it would take 126 people offered Treatment B to make the decision difficult. The differences are shown in the graph below
Why is this important?
The comparison you made is an example of a person tradeoff (PTO). The PTO is one method used to find out the utilities of different health conditions. These utilities are basically measures of the severities of the conditions. More severe conditions have a lower utility, and less severe conditions have a higher utility, on a scale of 0 to 1. Insurance companies, the government, and other organizations use these utilities as a way to decide which group to funnel money into for treatments.
On the surface, it seems like basing the money division on the severity of a condition is a good and fair method, since theoretically the people who are in the greatest need will be treated first. However, the PTO raises issues of fairness and equity that aren't accounted for in other utility elicitation methods like the time tradeoff (TTO) and rating scale (RS).
For example, when asked to decide how many people with paraplegia would have to be saved to equal saving 100 healthy people, many people say 100; that is, they think it is equally important to save the life of someone with paraplegia and a healthy person. Going by values obtained using the TTO or RS, an insurance company may conclude that 160 people with paraplegia (using a utility of .6) would have to be saved to make it equal to saving 100 healthy people. This would mean that less benefit would be gotten by saving someone with paraplegia, and thus they might not cover expenses for lifesaving treatments for people with paraplegia as much as they would for a healthy person. The PTO shows that many people would not agree with doing this, even though their own responses to other utility questions generated the policy in the first place.
For more information see:
Informal caregiving for relatives (parents, grandparents, spouses) can be time consuming. Can we attach dollar value to that time? Is everyone's time worth the same amount?
Imagine that your mother is suffering from moderate dementia and needs assistance with daily activities such as bathing and dressing. You are the only person available to care for her, as you are an only child and your father has passed away. On average, your mother will need about 2 to 3 hours of help per day, or 17 hours per week total.
- His is worth more
- His is worth the same amount
- His is worth less
How do your answers compare?
According to a study done to determine the costs of informal caregiving, the average value of the time spent giving care to someone with moderate dementia was about $7400. This was calculated using an average time of about 900 hours per year, at the mean wage for a home health aide in 1998 of $8.20 per hour.
What if the person you're caring for has less or more severe dementia?
As you might imagine, the cost of informal care differs depending on the severity of dementia. People with mild dementia don't need as much care (8.5 hours per week), and those with severe dementia need much more (41.5 hours per week). The amount of care needed directly impacts the estimated cost of care:
|Dementia severity||Hours of care per week||Estimated cost of informal care|
Why is this important?
As the Baby Boomer generation ages, the number of people needing informal care is going to increase dramatically. In order to make informed policy decisions regarding care for older people, the government will need an estimate of the value of informal care. A major obstacle to this is that there is no set way for making the estimates.
Earlier, you said that Bill Gate's caregiving time would be worth the same amount as yours. That implies that basing national estimates of caregiving costs on average wages would be the proper way to go about the calculations, since it means everyone's time is equally valuable.
However, some people think that not everyone's time is of equal value. In that case, using average wages to estimate the total cost of caregiving may not lead to an accurate representation. If one group of people is more likely to provide care than another group, then the average value of all caregivers' time may not be the same as the average of all peoples' time. This would possibly lead to an over- or underestimation of caregiving costs, depending on the value of the time of common groups of caregivers. Even without an agreed-upon estimation method, some valuable data can be generated.
The estimation method used in this study likely led to conservative figures, so the true costs of informal caregiving are probably higher than reported here. Even using this conservative method, the costs to society are staggering. The researchers estimated that the cost of informal caregiving for dementia alone in 1998 was $18.6 billion, which is almost two-thirds as much money as that actually spent on paid home care services for all conditions, not just dementia! That figure will grow considerably in the not-so-distant future when the Baby Boomers begin to need caregiving, whether formal or informal, and will likely have a large impact not just on health care systems, but on society as a whole as more and more people are called on to provide informal care.