- Research article
- Open Access
- Open Peer Review
The effects on population health status of using dedicated property taxes to fund local public health agencies
© Honoré et al; licensee BioMed Central Ltd. 2011
- Received: 6 January 2011
- Accepted: 14 June 2011
- Published: 14 June 2011
In the United States, a dedicated property tax describes the legal authority given to a local jurisdiction to levy and collect a tax for a specific purpose. We investigated for an association of locally dedicated property taxes to fund local public health agencies and improved health status in the eight states designated as the Mississippi Delta Region.
We analyzed the difference in health outcomes of counties with and without a dedicated public health tax after adjusting for a set of control variables using regression models for county level data from 720 counties of the Mississippi Delta Region.
Levying a dedicated public health tax for counties with per capita income above $28,000 is associated with improved health outcomes of those counties when compared to counties without a dedicated property tax for public health. Alternatively, levying a dedicated property tax in counties with lower per capita income is associated with poor health outcomes.
There are both positive and negative consequences of using dedicated property taxes to fund public health. Policymakers should carefully examine both the positive association of improved health outcomes and negative impact of taxation on poor populations before authorizing the use of dedicated local property tax levies to fund public health agencies.
- Capita Income
- Public Health Agency
- Local Revenue
- Population Health Status
- Bronchus Cancer
In economic terms, public health is a public good. It is consumed by everyone collectively and benefits all of society equally. Safe drinking water, control of epidemics, and reducing the risk of environmental hazards all illustrate the collective consumption and societal benefits of public health. The public health role, at all levels of government, for global disease surveillance, distribution of pharmaceuticals, and public messaging to reduce the spread of H1N1 throughout the world is a timely example. Passage of the Patient Protection and Affordable Care Act (ACA) provides additional illustration. Authority in ACA for national investments in a Prevention and Public Health Fund is intended to generate health benefits throughout all sectors of society .
Every community in America is served by a local public health agency  and everyone in those communities benefit from public health services whether they pay for it or not. In public health, as with other functions classified as public goods (e.g., law enforcement, public education, sanitation, fire protection), it is not possible to assign specific costs or charge for additional users who receive the benefits from these public services .
The public financing role of government is to allocate resources to meet these critical public-sector needs of society that are not fulfilled sufficiently by private markets. Because public health services are public goods, it is financed primarily through the allocation of government resources. Similar to other public services, local public health functions are funded by local governments and supplemented by state and federal revenues. In 2008, local public health agencies were funded 25% from local revenues, 20% from states, 17% from federal sources, with the remaining balance from Medicaid and Medicare reimbursements and other sources . Examining the extent that dedicated property taxation is used as a source of local revenues to finance public health and the association of those investments to population health outcomes is the focus of this paper.
The primary source of revenue for local governments is taxation. The most prevalent form of local taxation is property taxes. In 2005, tax revenue ($484 billion) represented 63% of all local revenues . Local property taxes ($347 billion) accounted for 45% of all local revenues and 72% of all local tax revenue . In 2007, local property tax collections per capita in the United States was $1,236, up 13% from 2005 .
The origin of property taxation in the United States dates back to the 17th century . Local government authority to levy and collect property taxes is granted by state constitutions and statutes [8, 9]. The 10th Amendment to the United States Constitution is where power is reserved for states to grant authority to local jurisdictions to levy and collect local property taxes. The "benefit view" theory is used by some economists to characterize the property tax as a charge to residents for local public services such as education and fire protection .
A dedicated property tax describes the legal authority to levy a tax millage rate against assessed property value for a specified purpose and distributing the tax collections as prescribed in the law. As an example, over half of all property tax collections in the United States are dedicated to K-12 education . Alternatively, property tax revenues are also commonly accumulated in a general (non-specified) fund. Local authorities typically decide annually how to allocate general fund tax revenues to specific public purposes. A dedicated tax millage rate can safeguard public entities against local revenue allocation fluctuations that may occur during annual budget negotiations with government officials.
In addition to the traditional public-sector enterprises that utilize the dedicated property tax system (e.g., hospitals, libraries, museums, parks, cemeteries, animal control, sewer systems, harbors) others are beginning to use this method to ensure a defined source of local revenues. As an example, five states, Ohio, Louisiana, Kansas, North Dakota, and Michigan, now levy a local dedicated property tax to fund senior services . Ohio collections in 2006 were $200 million and funded senior programs such as transportation, in-home services, case management, and nutrition .
Return on Taxpayer Investments
Some problems drive the formulation of policies more than others . When combined with a sense of urgency, health problems can shape public opinion in favor of new policies. Allocation policies, such as taxation, are commonly used as subsidies to ensure the supply of services and to meet public objectives . However, maintaining support for taxation policies can be greatly influenced by demonstrating a return on taxpayer investments. The public simply expects that a tax be justified with economic benefits . Documenting benefits should be a routine strategy to garner and maintain support. The example below is provided to illustrate this point.
While healthcare in America for the most part is treated as a commodity, some sectors of healthcare do serve a public good and, as such, are funded with tax revenues. Community-based public hospitals are a classic example. The inability to sustain certain healthcare services with private financing may necessitate that tax revenues be used to assure the delivery of care for residents. Special hospital taxing districts are formed throughout the United States for such purposes and have authority to levy dedicated taxes to finance operations in these organizations. Research by Studnicki et al. showed that jurisdictions in Florida that use this form of financing for public hospitals experienced better community level health outcomes when compared to state means . These findings provided evidence on the impact of the special taxing districts when the taxing policies were under critical review. Monitoring to assure that these healthcare services are available in communities is a traditional role of public health.
Study Purpose and Population
In this cross-sectional study we investigated to determine if the use of dedicated property taxation to finance local public health agencies was associated with improved population health status. Taxation is used to redistribute resources. The ability to show benefits received from such redistributions is important for demonstrating the value and return on those taxpayer investments for public health services.
The population examined in this research represents 720 counties in eight states known as the Mississippi Delta Region (Alabama, Arkansas, Illinois, Kentucky, Louisiana, Mississippi, Missouri and Tennessee). Of the 720 counties in these states, 240 share a national designation as a Delta county because of common characteristics in population health status and socioeconomic conditions.
We collected county level data on the utilization of dedicated property tax levies to fund local public health agencies (i.e., services and facilities) in 720 counties of the eight states in the Mississippi Delta Region. Based on the U.S. 2000 Census, total population for the region was estimated to be 42 million. This study covered the 3-year period 2003-2005.
An initial step was to categorize the 720 counties as those that did or did not levy a dedicated tax for public health services. If a local government levied a tax dedicated for the local public health agency during the study period 2003-2005, we defined that county in this research as a county with a public health tax. There were a few instances where a county did not levy a tax for public health but a large city in that county did levy a tax dedicated for public health. If a city, with a population that represented more than 60% of the total county population, had a dedicated tax levy for the city public health agency, we considered that county as a county with a public health tax even if the county had not levied a tax for the local public health agency. For example, Green County and Buchanan County in Missouri were both considered counties with a public health tax because the City of Springfield in Green County and the City of St. Joseph in Buchanan County had city tax levies dedicated for the city public health agencies. The population in both of those cities represented over 60% of the total county population. Given the population size of those cities, we considered any potential impact of that tax to have influence on the majority of the county's population.
The legislative period for the property tax millage rate can vary from state to state, but is typically for multiple periods (i.e., 5 to 10 years). For any reason, if a tax levy dedicated for a county public health agency was not levied continuously during the study period, that county was considered a county without a public health tax. Based on these criteria, there were 338 counties with a public health tax and 382 counties without a public health tax in the study population. Fifty percent (n = 239) of the 480 non-Delta counties had a dedicated public health tax during the study period whereas only 41% (n = 99) of the 240 Delta counties had a dedicated public health tax. None of the counties in Arkansas, Mississippi, and Tennessee had a tax levy dedicated to public health agencies. Mississippi counties have authority to levy a dedicated tax for public health but Arkansas and Tennessee do not have such authority.
County-level data that are typically used as measures of community health status were collected for a set of health variables available from national, state, and local datasets. Invasive cancer incidence rates for each county were obtained from state cancer registries or the state health department. Other health outcome measures were obtained from the CDC Wonder website . We measured the health status of the counties using mortality rates for overall population, cardiovascular disease (CVD), cerebrovascular disease (stroke), heart disease, chronic lower respiratory disease (CLRD), diabetes, pneumonia/influenza, lung and bronchus cancer, all types of cancer and unintentional injury; incidence rates for lung and bronchus cancer, colorectal cancer, prostate cancer, female breast cancer and all types of cancer; and years of potential life lost rate before age 75 (YPLL75).
These health outcomes are a subset of the health outcomes studied by Studnicki et al. based on six categories: total population mortality, major disease mortality, cancer mortality and morbidity, avoidable hospitalizations, trauma/accidents mortality, and infectious diseases . We excluded the categories of avoidable hospitalizations and infectious diseases due to not having county level data for these outcomes or having small number of cases leading to unstable rates at the county level.
A county is considered to have an unreliable mortality rate for a disease when the number of deaths is less than 20 over the 3-year period studied. Additional file 1 shows the outcome variables included/excluded and the percent of counties with unreliable rates in the remaining four categories. Except for pneumonia/influenza and diabetes with around 43% percent of counties having unreliable data, the rest of the health outcomes we selected had less than 18% of counties with unreliable data. When a county had unreliable data for the health outcomes we selected, we used the Indirectly Standardized Mortality Rate for that county .
The mortality rates, incidence rates, and rates for other outcome measures were calculated for the 3-year period 2003-2005 except for the Illinois cancer incidence rates which were for the 5-year period 2001-2005. Even if we hypothesize that the counties with a public health tax have better health outcomes compared to counties without a public health tax, there are other factors that can influence health outcomes differentially in different counties. Therefore, to adjust the difference in health outcomes between these two groups of counties due to these other factors, we used a regression analysis with a set of control variables. For control variables we selected demographic and economic variables: population size, percent net migration, percent population over 65, percent population under 18, percent non-white population, percent rural population, percent below poverty level, percent Medicaid eligible, number of physicians per 1,000 population, per capita income, unemployment rate, median household income, and whether the county is a Delta county or not. All of the control variables were expressed as annual averages during the study period except for percent rural population, which was based on year 2000 population. Population size was categorized into three groups: population less than 25,000, between 25,000 and 50,000, and over 50,000.
A preliminary analysis of the regression model indicated problems with multicollinearity due to highly correlated control variables. After removing these variables from the regression model, the control variables for the final model were population size, percent net migration, percent non-white population, percent population over 65, percent rural population, percent Medicaid eligible, number of physicians per 1,000 population, unemployment rate, per capita income, and whether the county is a Delta county or not.
which is a quadratic function of the per capita income. If none of the coefficients for quadratic terms in the regression were statistically significant, the variables corresponding to them were removed from the regression model and the mean difference in outcomes is linear in per capita income (E(y)|h = 1 - E(y)|h = 0 = b1 + b4c ). When linear terms also are not statistically significant, the mean difference in outcomes is the regression coefficient of h (E(y)|h = 1 - E(y)|h = 0 = b1).
Comparisons of Counties with and without Dedicated Local Public Health Tax Levy
Dedicated Local Public Health Tax Levy
With a tax (n = 338)
Without a tax (n = 382)
Pr > t*
Mean total population
Percent net migration (net migrants/total population)
Population aged >65 years (%)
Population aged <18 years (%)
Non-whites of total population (%)
Per capita Income ($)
Household income ($)
Percent rurality (rural population/total population) §
Medicaid eligible (%)
Physicians (total licensed MD or DO/1,000 total population)
Total population mortality (per 100,000 population)
Years of potential life lost (before age 75)
Major disease mortality (age-adjusted/100,000 population)
Cardiovascular disease (CVD)
Cerebrovascular disease (Stroke)
Chronic lower respiratory disease (CLRD)
Cancer mortality and incidence (age-adjusted/100,000 population)
All types of cancer mortality
Lung and bronchus cancer mortality
All types of cancer incidence
Lung and bronchus cancer incidence
Colorectal cancer incidence
Female breast cancer incidence
Prostate cancer incidence
Trauma/accidents (age-adjusted/100,000 population)
Unintentional injury mortality
Estimates of regression coefficient and p-value for health outcomes
Mortality rate, population
Mortality Rate, heart disease
Incidence rate, all types of cancer
Incidence rate, lung and bronchus cancer
Mortality Rate, CVD
Mortality Rate, CLRD
Mortality Rate, all types of cancer
Mortality rate, lung and bronchus cancer
Mortality rate, unintentional injury
Mortality rate, diabetes
Mortality rate, stroke
Incidence rate, colorectal cancer
Incidence rate, prostate cancer
Incidence rate, female breast cancer
Mortality rate, pneumonia/influenza
There is no significant difference in mean mortality rate of pneumonia/influenza between counties with a public health tax and counties without a public health tax after adjusting for control variables. The mean incidence rates for colorectal cancer, female breast cancer, and prostate cancer are significantly higher in counties with a public health tax compared to counties without a public health tax, whereas the mortality rate for stroke is significantly lower in counties with a public health tax.
The estimated mean differences in mortality rates between counties with a public health tax and counties without a public health tax for CLRD, lung and bronchus cancer, all types of cancer, unintentional injury, and diabetes are linear functions of per capita income. Because the estimated slopes of the regression lines are negative for all these health outcomes, the difference in mean mortality rates decline with increasing per capita income.
This paper examined the relationship between health status and dedicated taxation used for public health programming, services, and facilities. Counties that make up the Mississippi Delta Region were compared and grouped according to whether they levy a dedicated public health tax or not. Many differences were observed in this geographically homogeneous area.
Several findings resulted from this examination. Overall, income and mortality demonstrated a relationship. Specifically, the adjusted mean difference in mortality rates between counties with a dedicated public health tax and without a dedicated public health tax for lung and bronchus cancer, all types of cancer, unintentional injury, chronic lower respiratory disease, and diabetes decreased as per capita income increased. The YPLL75 is higher in counties with a public health tax and lower per capita income. It is possible that counties with low per capita income have higher mortality rates, because the underlying causes of death are exacerbated by levels of taxation on the poor.
Interestingly, levying a dedicated public heath tax for counties with low per capita income was associated with poor health outcomes. Alternatively, levying a dedicated public health tax for counties with per capita income more than $28,000 is related to better health outcomes of these counties compared to counties without a dedicated public health tax. The mortality rates for most of the diseases are higher for counties with a public health tax when per capita income is low but are lower when per capita income is high. This finding of the impact of income can be explained, in part, by the overwhelming effect of wealth on health outcomes. Income is thought to allow people to buy needed health care services. It has been found that people with low income are sicker more often and die prematurely . It is known that a person's health is often poorer in a population with a low average per capita income in spite of the person's own income . It is also known that as income decreases, a person's health declines, and vice versa . In this study the average percent of minorities in counties without a dedicated public health tax is significantly higher than that of counties with a dedicated public health tax. Additionally, the average percent of people below poverty level, percent Medicaid eligible people, and percent uninsured people are all higher for counties without a dedicated public health tax. This follows what is expected with respect to the relationship between health and income. Further evidence is that the average household income per county is significantly lower for counties without a dedicated public health tax.
If incidence rates of disease are evaluated another interesting finding is seen. The mean incidence rates for lung and bronchus cancer and all types of cancer are higher in counties with a dedicated public health tax. This relationship is seen independent of the per capita income of each county. Overall, our results suggest that the mean incidence rates are higher, but mortality rates are lower for counties with a dedicated public health tax after adjusting for control variables that may indicate a higher rate of detection of diseases due to increased screening. For example, North America ranked highest in terms of incidence, but 9th for mortality for prostate cancer in a study of 19 worldwide regions in 2002 . The widespread use of the Prostate Specific Antigen (PSA) blood testing in the U.S. resulted in not only higher prostate cancer incidence, but also a much higher proportion of early stage cases being diagnosed than in countries with lower level of testing that may have led to higher survival rates overall and lower mortality rates relative to incidence .
Our study is limited by not considering the overall property tax dedicated to public health. We did not adjust our results for state and federal funding of public health and had no measures to compare the performance, effectiveness and efficiency of public health system delivery of core functions in counties with and without a dedicated public health tax. We selected all of the counties in the Mississippi Delta Region for the study. Since these counties are not a random sample of counties in the U.S., our results may not be applicable nationally. Our study is a cross-sectional analysis, therefore, it is not strong in showing cause-effect relations. A related limitation in cross-sectional analysis is policy endogeneity. Because we use cross-sectional data analysis, we cannot conclude whether dedicated public health taxes influence health outcomes or if health outcomes influence the likelihood of a county levying a dedicated property tax for public health.
Debates regarding the roles and responsibilities of health policy at the different levels of government can be traced to the founding of America . Taxation policy debates have endured over time as well. In the 19th century, E.R.A. Seligman, a tax economist, proclaimed the property tax as "one of the worst taxes known in the civilized world" [ p 4]. Such arguments against local taxes persist today . However, when local taxes are used they typically reflect the priorities of the local community.
Historically, examining the role and responsibility of local government for health policy has lagged behind that of federal and state government. Also, public health has not used property tax policies to the degree that these taxes are used by the nation's school systems or other public service enterprises. Generally, the public is also not widely familiar with the mission or value of the nation's public health system. Advancing local property tax policies could be a strategy for increasing the role of local government in population health improvements, while also garnering greater local support and engagement in public health. Such policies would have synergy with authority in ACA for investments in community-based public health programs as a means of improving population health .
The Mississippi Delta Region states share common characteristics in health and socioeconomic status. However, jurisdictions within these states do not all choose to fund public health services with a locally dedicated property tax. There may be some underlying factors that contribute to the utilization of this form of financing that was not examined in this research. Findings suggest that levying a dedicated tax was associated with better health outcomes. However, when considering locally dedicated taxation, policymakers should carefully examine the local tax base and potential impact of levying a tax on poor communities.
This study was funded with support to the University of Southern Mississippi from the Robert Wood Johnson Foundation.
The findings and conclusions in this paper are those of the author(s) and do not necessarily represent the official position of the Centers for Disease Control and Prevention.
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