Diabetes Burden and Access to Preventive Care in the Rural United States

Context: National databases can be used to investigate diabetes prevalence and health care use. Guideline-based care can reduce diabetes complications and morbidity. Yet little is known about the prevalence of diabetes and compliance with diabetes care guidelines among rural residents and whether different national databases provide similar results.
Purpose: To examine rural-urban differences in the prevalence of diabetes and compliance with guidelines, and to compare the Behavioral Risk Factor Surveillance System (BRFSS) and the Medical Expenditures Panel Survey (MEPS).
Methods: Data for 2001-2002 were analyzed and compared by rural-urban status. Prevalence was calculated as simple unadjusted, weighted unadjusted, and weighted adjusted using a multivariate approach. Results from the 2 databases were compared.
Findings: A slightly higher prevalence of diabetes among rural residents, 7.9% versus 6.0% in MEPS and 7.6% versus 6.6% in BRFSS, was found and persisted after adjustment for age, BMI, insurance coverage, and other demographic characteristics (adjusted OR 1.16 [1.02-1.31] in MEPS; 1.19 [1.01-1.20] in BRFSS). Rural persons in MEPS were less likely to receive an annual eye examination (aOR = 0.85) and a feet check (aOR = 0.89). A significantly ( P < .05) smaller proportion of rural residents in BRFSS received an annual eye examination (aOR = 0.88), feet check (aOR = 0.85), or diabetes education (aOR = 0.83). Rural residents in both datasets were more likely to get a quarterly HbA1c test done.
Conclusion: Rural residents in both datasets had higher prevalence of diabetes. Though not always statistically significant, the trend was to less guideline compliance in rural areas.     

Peer Reviewed: Residence in a Distressed County in Appalachia as a Risk Factor for Diabetes,Behavioral Risk Factor Surveillance System, 2006-2007

Introduction

We compared the risk of diabetes for residents of Appalachian counties to that of residents of non-Appalachian counties after controlling for selected risk factors in states containing at least 1 Appalachian county.

Methods

We combined Behavioral Risk Factor Surveillance System data from 2006 and 2007 and conducted a logistic regression analysis, with self-reported diabetes as the dependent variable. We considered county of residence (5 classifications for Appalachian counties, based on economic development, and 1 for non-Appalachian counties), age, sex, race/ethnicity, education, household income, smoking status, physical activity level, and obesity to be independent variables. The classification "distressed" refers to counties in the worst 10%, compared with the nation as a whole, in terms of 3-year unemployment rate, per capita income, and poverty.

Results

Controlling for covariates, residents in distressed Appalachian counties had 33% higher odds (95% confidence interval, 1.10-1.60) of reporting diabetes than residents of non-Appalachian counties. We found no significant differences between other classifications of Appalachian counties and non-Appalachian counties.

Conclusions

Residents of distressed Appalachian counties are at higher risk of diabetes than are residents of other counties. States with distressed Appalachian counties should implement culturally sensitive programs to prevent diabetes.     

A National Study of Obesity Prevalence and Trends by Type of Rural County

CONTEXT: Obesity is epidemic in the United States, but information on this trend by type of rural locale is limited. PURPOSE: To estimate the prevalence of and recent trends in obesity among US adults residing in rural locations. METHODS: Analysis of data from the Behavioral Risk Factor Surveillance System (BRFSS) for the years 1994-1996 (n = 342,055) and 2000-2001 (n = 385,384). The main outcome measure was obesity (body mass index [BMI] > or = 30), as determined by calculating BMI from respondents' self-reported height and weight. RESULTS: In 2000-2001, the prevalence of obesity was 23.0% (95% confidence interval [CI] 22.6%-23.4%) for rural adults and 20.5% (95% CI 20.2%-20.7%) for their urban counterparts, representing increases of 4.8% (95% CI 4.2%-5.3%) and 5.5% (95% CI 5.1%-5.9%), respectively, since 1994-1996. The highest obesity prevalence occurred in rural counties in Louisiana, Mississippi, and Texas; obesity prevalence increased for rural residents in all states but Florida over the study period. African Americans had the highest obesity prevalence of any group, up to 31.4% (95% CI 29.1%-33.6) in rural counties adjacent to urban counties. The largest difference in obesity prevalence between those with a college education compared with those without a high school diploma occurred in urban areas (18.4% [95% CI 17.9%-18.9%] vs 23.5% [95% CI 22.5%-24.5%], respectively); the smallest difference occurred in small, remote rural counties (20.3% [95% CI 18.7%-21.9%] versus 22.3% [95% CI 20.7%-24.0%], respectively). CONCLUSIONS: The prevalence of obesity is higher in rural counties than in urban counties; obesity affects some residents of rural counties disproportionately.     

Validity and reliability of self-reported arthritis: Georgia senior centers, 2000-2001

BACKGROUND: Arthritis and other rheumatic conditions are a common cause of disability among adults in the United States. Telephone interviews of the state-based Behavioral Risk Factor Surveillance System (BRFSS) are used by states and territories to estimate the prevalence of arthritis. The purpose of this study was to assess the validity and reliability of the 1996-2001 BRFSS arthritis case definition in a senior center population. METHODS: A total of 487 respondents at selected senior centers in Georgia were surveyed by telephone, evaluated 3 to 4 weeks later by board-certified rheumatologists, and completed a written survey in 2000 to 2001. Using the rheumatologists' summary assessment "Does this person have arthritis or a related condition" as the standard, the sensitivity and specificity of the BRFSS arthritis case definitions were calculated. Reliability for the BRFSS arthritis case definition was also calculated by comparing responses to the telephone survey with responses to a written survey. RESULTS: Sensitivity was 70.8% (95% confidence interval [CI]=65.9-75.6), and the specificity was 70.3% (95% CI=62.9-77.8). The agreement between the telephone and written responses indicating self-reported arthritis was high (kappa=0.68). Analyses were conducted in 2002 to 2004. CONCLUSIONS: Self-reported arthritis in the 1996-2001 BRFSS was highly reliable, and moderately sensitive and specific among these senior center participants.     

State-specific prevalence of obesity among adults--United States, 2007

Obesity is associated with reduced quality of life, development of serious chronic conditions such as heart disease and diabetes, increased medical care costs, and premature death. A Healthy People 2010 objective is to reduce to 15% the proportion of adults who are obese. In 2005, no state met this target, and (based on self-reported height and weight) 23.9% of adults in the United States were obese. To update 2005 estimates of the prevalence of obesity in adults, CDC analyzed data from the 2007 Behavioral Risk Factor Surveillance System (BRFSS) survey. The results of that analysis indicated that 25.6% of respondents overall in 2007 were obese; the prevalence of obesity among adults remained above 15% in all states and was above 30% in Alabama, Mississippi, and Tennessee. Enhanced collaborative efforts among national, state, and community groups are needed to establish, evaluate, and sustain effective programs and policies to reduce the prevalence of obesity in the United States.     

Prevalence of physical activity and obesity in US counties, 2001–2011: a road map for action

Background

Obesity and physical inactivity are associated with several chronic conditions, increased medical care costs, and premature death.

Methods

We used the Behavioral Risk Factor Surveillance System (BRFSS), a state-based random-digit telephone survey that covers the majority of United States counties, and the National Health and Nutrition Examination Survey (NHANES), a nationally representative sample of the US civilian noninstitutionalized population. About 3.7 million adults aged 20 years or older participated in the BRFSS from 2000 to 2011, and 30,000 adults aged 20 or older participated in NHANES from 1999 to 2010. We calculated body mass index (BMI) from self-reported weight and height in the BRFSS and adjusted for self-reporting bias using NHANES. We calculated self-reported physical activity—both any physical activity and physical activity meeting recommended levels—from self-reported data in the BRFSS. We used validated small area estimation methods to generate estimates of obesity and physical activity prevalence for each county annually for 2001 to 2011.

Results

Our results showed an increase in the prevalence of sufficient physical activity from 2001 to 2009. Levels were generally higher in men than in women, but increases were greater in women than men. Counties in Kentucky, Florida, Georgia, and California reported the largest gains. This increase in level of activity was matched by an increase in obesity in almost all counties during the same time period. There was a low correlation between level of physical activity and obesity in US counties. From 2001 to 2009, controlling for changes in poverty, unemployment, number of doctors per 100,000 population, percent rural, and baseline levels of obesity, for every 1 percentage point increase in physical activity prevalence, obesity prevalence was 0.11 percentage points lower.

Conclusions

Our study showed that increased physical activity alone has a small impact on obesity prevalence at the county level in the US. Indeed, the rise in physical activity levels will have a positive independent impact on the health of Americans as it will reduce the burden of cardiovascular diseases and diabetes. Other changes such as reduction in caloric intake are likely needed to curb the obesity epidemic and its burden.

     

Prevalence of Rural Intimate Partner Violence in 16 US States, 2005

ABSTRACT:  Context: Intimate partner violence (IPV) is a public health problem that affects people across the entire social spectrum. However, no previous population-based public health studies have examined the prevalence of IPV in rural areas of the United States. Research on IPV in rural areas is especially important given that there are relatively fewer resources available in rural areas for the prevention of IPV. Methods: In 2005, over 25,000 rural residents in 16 states completed the first-ever IPV module within the Behavioral Risk Factor Surveillance System (BRFSS). The BRFSS is a Centers for Disease Control and Prevention-sponsored annual random-digit-dialed telephone survey. The BRFSS provides surveillance of health behaviors and health risks among the non-institutionalized adult population of the United States and several US territories. Findings: Overall, 26.7% of rural women and 15.5% of rural men reported some form of lifetime IPV victimization, similar to the prevalence found among men and women in non-rural areas. Within several states, those living in rural areas evidenced significantly higher lifetime IPV prevalence than those in non-rural areas. Conclusion: IPV is a significant public health problem in rural areas, affecting a similar portion of the population as in non-rural areas. More research is needed to examine how the experience of IPV is different for rural and non-rural residents.     

White infant mortality in Appalachian states, 1976-1980 and 1996-2000: changing patterns and persistent disparities

Purpose: Appalachian counties have historically had elevated infant mortality rates. Changes in infant mortality disparities over time in Appalachia are not well‐understood. This study explores spatial inequalities in white infant mortality rates over time in the 13 Appalachian states, comparing counties in Appalachia with non‐Appalachian counties. Methods: Data are analyzed for 1,100 counties in 13 Appalachian states that include 420 counties designated as Appalachian by the Appalachian Regional Commission. Area Resource File data for 1976‐1980 and 1996‐2000 provide county‐ and city‐level infant mortality rates, poverty rates, rural‐urban continuum codes, and numbers of physicians per 1,000 residents. Multiple regression analyses evaluate whether Appalachian counties are significantly associated with elevated white infant mortality in each time period, accounting for covariates. Findings: White infant mortality rates decreased substantially in all sub‐regions over the last 2 decades; however, disparities in infant mortality did not diminish in Appalachian counties compared to non‐Appalachian counties. After accounting for poverty, rural/urban status, and health care resources, Appalachian counties were significantly associated with comparatively higher infant mortality during the late 1970s but not in the late 1990s. At the more recent time point, higher poverty rates, residence in more rural areas, and lower physician density were associated with greater infant mortality risk. Conclusion: Appalachian counties continue to experience relatively elevated infant mortality rates. Poverty and rurality remain important dimensions of health service need in Appalachia.     

Diabetes in Utah among adults: interaction between diabetes and other risk factors for microvascular and macrovascular complications.

From a telephone survey of the health status of a random sample of the general population of Utah, we identified 255 people with adult onset diabetes. We compared them to 622 non-diabetic controls, matched for age, sex, and urban/rural country of residence. We examined diabetes as a risk factor for heart diseases, stroke, and blindness and its interaction with other known risk factors. Diabetes interacted with smoking history so as to increase the risk of stroke, heart disease, and blindness. Diabetes also interacted with hypertension in their effect on the prevalence of blindness and, to a small extent, heart disease. Among the diabetics, duration of diabetes was associated with macrovascular and microvascular complications developing after the diagnosis of diabetes. Those with longer duration of disease showed an increase in risk for microvascular (kidney disease, blindness) and macrovascular (heart disease, stroke, amputations) complications. Although the estimates were imprecise, the effect of duration on macrovascular complications was greater among diabetics with a history of hypertension; the effect on microvascular complications was greater among smokers. The findings are compared to previous studies and the utility of diabetes prevalence data is discussed.     

Dental visits among dentate adults with diabetes--United States, 1999 and 2004

One of the major complications of diabetes is periodontal disease, a chronic infection of tissues supporting the teeth and a major cause of tooth loss. Adults with diabetes have both a higher prevalence of periodontal disease and more severe forms of the disease, contributing to impaired quality of life and substantial oral functional disability. In addition, periodontal disease has been associated with development of glucose intolerance and poor glycemic control among adults with diabetes. Regular dental visits provide opportunities for prevention, early detection, and treatment of periodontal disease among dentate adults (i.e., those having one or more teeth); moreover, regular dental cleaning improves glycemic control in patients with poorly controlled diabetic conditions. One of the national health objectives for 2010 is to increase the proportion of persons with diabetes who have an annual dental examination to 71% (revised objective 5-15). To estimate the percentage of dentate U.S. adults aged > or =18 years with diabetes who visited a dentist within the preceding 12 months, CDC analyzed data from the Behavioral Risk Factor Surveillance System (BRFSS) surveys for 1999 and 2004. This report describes the results of that analysis, which indicated that, in 2004, age-adjusted estimates in only seven states exceeded 71% and estimated percentages for four states and District of Columbia (DC) increased significantly from their levels in 1999. The findings underscore the need to increase awareness and support for oral health care among adults with diabetes, including support for national and state diabetes care management programs.     

Diabetes-related preventive-care practices--Guam, 2001-2003

Persons with diabetes are at risk for serious complications, such as blindness, kidney failure, nontraumatic lower-extremity amputations, and cardiovascular disease. Preventive-care practices have been determined effective in reducing both the incidence and progression of diabetes-specific complications. Despite the benefits of these practices, their level of use has been lower than recommended in the United States. To emphasize the importance of preventive-care practices, national health objectives for 2010 for persons with diabetes, include the following targets: have an annual dilated eye examination (75%; objective 5-13), have an annual foot examination (75%; objective 5-14), perform self-monitoring of blood glucose (SMBG) at least once daily (60%; objective 5-17), and have a glycated hemoglobin (HbA1c) measurement at least twice per year (65%; objective 5-12 [revised]). In the U.S. territory of Guam (2004 population: 166,090), no previous population-based assessment of the use of diabetes-related preventive-care practices has been conducted. For this report, data from the 2001-2003 Guam Behavioral Risk Factor Surveillance System (BRFSS) were analyzed to determine the prevalence of preventive-care practices among persons with diabetes in Guam, which is the southernmost and largest of the Marianas Islands, located approximately 3,300 miles west of Hawaii and 1,550 miles south of Japan. Results of the analysis indicated that Guam residents with diabetes remain below the national targets for 2010 for four preventive-care practices, most notably SMBG. The preventive care programs and surveillance activities of the Guam Diabetes Prevention and Control Program (DPCP) should be continued, with emphasis on SMBG recommendations, to prevent poor health outcomes in persons with diabetes and achieve the national health objectives.     

Health status and access to health care services: a comparison between Ohio's rural non-Appalachian and Appalachian families

Comparisons in the health status of rural dwellers and care access have not traditionally considered culturally defined areas such as Appalachia. This study examined differences in parent health status, child health status, and access to care between those living in Ohio's 29 Appalachian counties and those living in Ohio's 30 rural counties. We analyzed data from the 2008 Ohio Family Health Survey including Bayesian hierarchical modeling. Child health differed by gender and ethnicity. Parent health status differed by region. Parent and child health status were related to care access. Health and access disparities exist within rural and Appalachia Ohio.     

Acceptance of the HPV Vaccine for Adolescent Girls: Analysis of State-Added Questions from the BRFSS

PurposePrevious research regarding human papillomavirus (HPV) awareness and vaccine acceptance has relied on convenience or other selected samples of the population. To assess the prevalence of HPV awareness and vaccine acceptance in Kentucky we added questions to the 2006 Kentucky Behavioral Risk Factor Survey System (BRFSS), a population-based survey of health behaviors.MethodsWomen who participated in the statewide BRFSS were asked two HPV-related questions: one assessed previous awareness of HPV, and another assessed vaccine acceptance for girls 10 to 15 years old. We used crosstabulations and multivariate logistic regression to determine which factors were associated with HPV awareness and vaccine acceptance. Because the HPV vaccine Gardasil was approved in June 2006, we conducted an analysis of pre- and postapproval HPV awareness and vaccine acceptance. We also compared results across Appalachian and non-Appalachian counties, two distinct regions of Kentucky.ResultsOverall, 57.6% of women had heard of HPV, and 70.2% accepted vaccination for girls. HPV awareness increased after Gardasil's approval, but the increase was much smaller among Appalachian women. Prevalence of vaccine acceptance was unchanged in both regions. Awareness of HPV was not associated with vaccine acceptance, and factors significantly associated with vaccine acceptance in multivariate analysis differed by Appalachian status.ConclusionsThis population-based survey of Kentucky women found relatively high vaccine acceptance for girls. Also, many respondents reported not knowing whether they accept vaccination, and factors associated with vaccine acceptance varied by Appalachian status. These findings suggest that acceptance of the HPV vaccine for girls may improve with targeted interventions.     

Peer Reviewed: Differences in Health and Health Behaviors Between State Employees and Other Employed Adults in Oregon, 2007

Introduction

Worksite health promotion and interventions have gained popularity among state agencies. We studied the health behaviors and health characteristics of adults employed in state agencies in Oregon and compared those state employees with the statewide population of employed, insured adults.

Methods

We used data from the Oregon Behavioral Risk Factor Surveillance System (BRFSS) and a modified BRFSS survey administered to state employees. State employees were compared with employed, insured BRFSS respondents in total and then separately for men and women.

Results

The prevalence of healthy weight was lower among state employees compared with the statewide population of employed, insured adults (29% vs 35%), and the prevalence of obesity was higher (35% vs 26%). State employees were also less likely to meet physical activity recommendations (44% vs 56%). Diabetes prevalence was higher among state employees (7% vs 5%), and self-reported excellent or very good health status was lower (54% vs 64%).

Conclusions

State employees differ from the statewide population of employed, insured adults on a number of health behaviors and conditions. These differences suggest obesity prevention and diabetes control as priority areas for state agency worksite interventions.     

Health Disparities Between Appalachian and Non-Appalachian Counties in Virginia USA

The examination of health disparities among people within Appalachian counties compared to people living in other counties is needed to find ways to strategically target improvements in community health in the United States of America (USA). Methods: A telephone survey of a random sample of adults living in households within communities of all counties of the state of Virginia (VA) in the USA was conducted. Findings: Health status was poorer among those in communities within Appalachian counties in VA and health insurance did not make a difference. Health perception was significantly worse in residents within communities in Appalachian counties compared to non-Appalachian community residents (30.5 vs. 17.4% rated their health status as poor/fair), and was worse even among those with no chronic diseases. Within communities in Appalachian counties, black residents report significantly better health perception than do white residents. Conclusion: Residents living in communities in Appalachian counties in VA are not receiving adequate health care, even among those with health insurance. More research with a larger ethnic minority sample is needed to investigate the racial/ethnic disparities in self-reported health and health care utilization within communities.     

Comparison of surveys used to measure physical activity

OBJECTIVE: To compare the level of agreement in results obtained from four physical activity (PA) measurement instruments that are in use in Australia and around the world. METHODS: 1,280 randomly selected participants answered two sets of PA questions by telephone. 428 answered the Active Australia (AA) and National Health Surveys, 427 answered the AA and CDC Behavioural Risk Factor Surveillance System surveys (BRFSS), and 425 answered the AA survey and the short International Physical Activity Questionnaire (IPAQ). RESULTS: Among the three pairs of survey items, the difference in mean total PA time was lowest when the AA and NHS items were asked (difference=24) (SE:17) minutes, compared with 144 (SE:21) mins for AA/BRFSS and 406 (SE:27) mins for AA/IPAQ). Correspondingly, prevalence estimates for 'sufficiently active' were similar for AA and NHS (56% and 55% respectively), but about 10% higher when BRFSS data were used, and about 26% higher when the IPAQ items were used, compared with estimates from the AA survey. CONCLUSIONS: The findings clearly demonstrate that there are large differences in reported PA times and hence in prevalence estimates of 'sufficient activity' from these four measures. IMPLICATIONS: It is important to consistently use the same survey for population monitoring purposes. As the AA survey has now been used three times in national surveys, its continued use for population surveys is recommended so that trend data over a longer period of time can be established.     

State prevalence of self-reported doctor-diagnosed arthritis and arthritis-attributable activity limitation--United States, 2003

Arthritis is costly (86 billion dollars annually), highly prevalent (affecting 43 million U.S. adults), the leading cause of disability, and associated with substantial disparities in pain, activity limitations, and compromised quality of life. State-based estimates of arthritis prevalence and impact help define the burden of arthritis and provide state arthritis programs with data for program planning. This report summarizes results from the 2003 Behavioral Risk Factor Surveillance System (BRFSS) survey on state-specific prevalence of self-reported doctor-diagnosed arthritis and arthritis-attributable activity limitation in 50 states, the District of Columbia (DC), and three territories. The findings indicated that the prevalence of adults with self-reported doctor-diagnosed arthritis ranged from 17.9% to 37.2% (state median: 27.0%) and with arthritis-attributable activity limitation ranged from 6.3% to 16.7% (state median: 9.9%); the proportion of adults with arthritis-attributable activity limitation among those with self-reported doctor-diagnosed arthritis ranged from 30.1% to 49.8% (state median: 37.4%). These high rates of arthritis prevalence and activity limitation are projected to increase with the aging of the population, requiring increased intervention measures to reduce this impact.     

Geographic variation in cardiovascular disease risk factors among American Indians and comparisons with the corresponding state populations

Objectives: (1) To compare the prevalence of self-reported CVD, diabetes, hypertension, fair/poor perceived health status, and current tobacco use from three surveys of American Indians - two in the Southeast (Catawba Diabetes and Health Survey [CDHS] and Lumbee Diabetes and Health Survey [LDHS]) and one in the upper Midwest (Inter-Tribal Heart Project [ITHP]). (2) To compare the prevalence estimates from the CDHS, LDHS, ITHP with those for the corresponding state populations (South Carolina, North Carolina, Minnesota and Wisconsin, respectively) derived from the Behavioral Risk Factor Surveillance System (BRFSS). Methods: Pearson's Chi-square analyses were used to detect statistically significant differences in the age-adjusted prevalence estimates across the study populations. Results: Among these three populations of American Indians, the ITHP participants had the highest prevalence estimates of diabetes (20.1%) and current cigarette smoking (62.8%). The CDHS participants had the highest prevalence estimate of fair/poor perceived health status (32.0%). The LDHS participants had the highest prevalence estimate of chewing tobacco use (14.0%), and the lowest prevalence of CVD. The prevalence estimates of self-reported diabetes were dramatically higher among American Indian participants in the ITHP (20.1%) and CDHS (14.9%) than among participants in the corresponding state BRFSS (5.8% MN and WI and 6.6% SC), as were the estimates for hypertension. Conclusion: The substantial variations in prevalence of CVD and its risk factors among Tribal Nations suggests that distinct cultural norms, historic conditions, and important health issues of each American Indian community must be recognized and incorporated into all health promotion programs and policies.