How adults' access to outpatient physician services relates to the local supply of primary care physicians in the rural southeast

Socioeconomic differences in access to scoliosis care in the pediatric population

PURPOSE

Adolescent idiopathic scoliosis (AIS) is a common spinal deformity affecting pediatric patients, with up to 10% requiring surgical intervention. Studies have shown disparities in these patients associated with race, ethnicity, and insurance type, but there is limited information on disparities that exist based on geographical parameters. In this study, we aim to explore the disparities in the care for AIS by looking at differences in the rates of readmission, infection, and revision between patients residing in rural and urban environments.

METHODS

This is a retrospective cohort study utilizing the Pediatric Health Information System. Pediatric patients that underwent posterior spinal fusion (PSF) for AIS from October 2015 to July 2022 were included. Diagnoses and procedures were identified based on ICD-10 codes and internal tools built into the database. Descriptive statistics were used to summarize the data, including demographics, infection rates, readmission rates, and revision rates. T tests, Chi-squared tests, and logistic regression were used to assess differences between the rural and urban populations. We utilized STATA/SE 15.1 for all data analysis.

RESULTS

15,318 patients were included in the final cohort. Demographics and baseline characteristics were similar between the rural and urban patients, although more rural patients used Medicaid over commercial insurance (41.5% vs. 32.7%, p < 0.01), median household income was lower in rural patients (p < 0.01), and there was a higher proportion of Hispanic patients in the urban patient cohort (13.9% vs. 6.4%, p < 0.01). Complication rates were not significantly different between the urban and rural patient cohorts, although rural patients did have a significantly higher 90-day readmission rate (7.3% vs. 6.1%, p = 0.03) and higher rates of instrumentation removal (7.7% vs. 4.9%, p = 0.01).

CONCLUSIONS

The surgical outcomes between rural and urban pediatric AIS patients undergoing PSF are comparable, although 90-day readmission rates and rates of instrumentation removal were higher in rural patients. Insurance status is likely a significant driver for the differences observed in this study. Future research is needed to better understand the reasons for these differences and to develop strategies to improve outcomes.

LEVEL OF EVIDENCE

Retrospective cohort study, Level III.

Effectiveness and Feasibility of Telehealth-Based Dietary Interventions Targeting Cardiovascular Disease Risk Factors: Systematic Review and Meta-Analysis

BACKGROUND

Telehealth-based dietary interventions were recommended for cardiovascular disease (CVD) management during the COVID-19 pandemic; however, data regarding their effectiveness and feasibility are limited.

OBJECTIVE

We aimed to examine (1) the effectiveness of telehealth-based dietary interventions in improving clinical CVD risk factors and (2) the feasibility of these interventions among individuals with CVD.

METHODS

To conduct this systematic review and meta-analysis of randomized controlled trials (RCTs), 2 investigators searched PubMed, Cochrane Library, Web of Science, and ClinicalTrials.gov databases based on predetermined search terms and included English-language RCTs published between January 2000 and July 2022. The Cochrane Risk of Bias tool was used to assess RCT quality. To evaluate intervention effectiveness, weight, BMI, systolic and diastolic blood pressure, and levels of total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglycerides, or blood glucose were compared postintervention in telehealth and usual care (UC) groups. Feasibility was determined through the number of participants retained in intervention and UC groups. Pooled data for each CVD outcome were analyzed using a random effects model. Mean difference (MD), standardized MD, or risk ratio were calculated using R software.

RESULTS

A total of 13 RCTs with 3013 participants were included in the analysis to assess the effectiveness and feasibility of telehealth-based dietary interventions among individuals with CVD. Participants had a mean age of 61.0 (SD 3.7) years, and 18.5% (n=559) were women. Approximately one-third of RCTs were conducted in the United States (n=4, 31%). Included studies used telephone, app, text, audio-visual media, or website-based interventions. Of the 13 included studies, 3 were of high quality, 9 were of moderate quality, and only 1 was of low quality. Pooled estimates showed systolic blood pressure (MD -2.74, 95% CI -4.93 to -0.56) and low-density lipoprotein cholesterol (standardized MD -0.11, 95% CI -0.19 to -0.03) to be significantly improved among individuals with CVD as a result of telehealth-based dietary interventions compared to UC. No significant difference in effectiveness was detected for weight, BMI, and levels of diastolic blood pressure, total cholesterol, high-density lipoprotein, and triglycerides between telehealth-based dietary interventions and UC among those with CVD. There was no significant difference between the feasibility of telehealth-based dietary interventions versus UC. Significant I2 indicated moderate to considerable heterogeneity.

CONCLUSIONS

Telehealth-based dietary interventions show promise in addressing CVD risk factors.

Saving Hearts in Rural West Texas: The Impact of Critical Care Access on Mortality Rates

Background The Critical Access Hospital (CAH) designation program was created in 1997 by the US Congress to reduce the financial vulnerability of rural hospitals and improve access to healthcare by keeping fundamental services in rural communities. Methods This is a retrospective observational study. Information on CAHs in West Texas in rural counties was extrapolated from the Flex Monitoring Team between 2010 and 2020. The study population included adults aged ≥25 years with a known heart failure (HF) diagnosis who were identified using ICD-10 codes. Mortality rates were obtained from the CDC Wide-ranging ONline Data for Epidemiologic Research (WONDER) database. The HF population was categorized by age, sex, and ethnicity. Mortality differences among these groups were analyzed using a two-sample t-test. The significance level was considered to be p < 0.05. Results The total study population analyzed was 1,348,001. A statistically significant difference in age-adjusted mortality rate (AAMR) was observed between the study and control groups, with a value of 3.200 (95% CI: 3.1910-3.2090, p < 0.0001) in favor of a lower mortality rate in rural counties with CAHs. When comparing gender-related differences, males and females had lower AAMRs in rural counties with CAHs. Among each gender, statistically significant differences were noted between males (95% CI: 2.181-2.218, p < 0.001) and females (95% CI: 3.382-3.417, p < 0.001). When examining the data by ethnicity, the most significant difference in mortality rate was observed within the Hispanic population, 6.400 (95% CI: 6.3770-6.4230, p < 0.0001). When adjusted to age, the crude mortality rate was calculated, which favored CAH admission in the younger population (10.200 (95% CI: 10.1625-10.2375, p < 0.001) and 11.500 (95% CI: 11.4168-11.5832, p < 0.001) in the 55-64 and 65-74 age groups, respectively). Conclusion The data clearly showed that West Texas rural county hospitals that received CAH designation performed better in terms of mortality rates in the HF population compared to non-CAH.

What is the price of residence in rural areas for patients with epilepsy?

INTRODUCTION

We aimed to investigate the effects of the urban or rural dwelling of patients with epilepsy living in Giresun on their use of health services, quality of life, and self-efficacy.

METHODS

In this cross-sectional study, patients with epilepsy who were admitted to the neurology outpatient clinic between January 2022 and August 2022 were evaluated. All the participants were individually interviewed to complete the Epilepsy Self-Efficacy Scale (ESES) and Quality of Life in Epilepsy Inventory (QOLIE-10) questionnaire. The frequency of admission to the emergency department, neurology outpatient clinic, and general practitioner clinic where the primary reason for the visit was epilepsy in the last year was determined using the hospital database.

RESULTS

This study was composed of 109 patients. The rural dwelling was found in 45% of the participants. The mean age of seizure onset was significantly lower in patients dwelling in rural areas Mean GP and ED visits didn't differ according to dwelling. On the other hand, mean neurology outpatient clinic visits were significantly lower in patients living in rural areas. The QOLIE-10 didn't differ according to the dwelling. However, lower ESES results were obtained in patients living in rural areas.

CONCLUSION

This study shows that there is a disparity in neurologist visits among patients with epilepsy dwelling in rural areas. Furthermore, lower ESES scores were found in these patients. Educational interventions should be addressed particularly to the patients dwelling in rural areas to strengthen self-efficacy, and fill the gaps for the shortage of health personnel and qualified health care.

Community-Level Characteristics of Timely PCP Follow-Up Care and Post-Discharge ER Usage

Achieving equitable access has been a central goal in healthcare for years; access by low-income Americans is a major concern for policymakers. We examined the differences in post-discharge primary care follow-up visits and 30-day post discharge ER visits across several characteristics. The results suggest that higher housing density, percent minority population, percent unemployed, and percent uninsured point to lower rates of PCP follow-up care and higher rates of post-discharge ER visits. These findings have implications for developing cost-effective programs targeting hospital to PCP communication, especially in densely populated areas.

Association of psychological distress with reasons for delay in seeking medical care in rural patients with worsening heart failure symptoms

BACKGROUND

The impact of depressive symptoms and anxiety on rural patients' decisions to seek care for worsening heart failure (HF) symptoms remains unknown. The purposes of this study were (1) to describe rural patients' reasons for delay in seeking care for HF, and (2) to determine whether depressive symptoms or anxiety was associated with patients' reasons for delay in seeking medical care for worsening symptoms.

METHODS

A total of 611 rural HF patients were included. Data on reasons for patient delay in seeking medical care (The Reasons for Delay Questionnaire), depressive symptoms (PHQ-9), and anxiety (BSI-ANX) were collected. Statistical analyses included chi-square and multiple regression.

RESULTS

A total of 85.4% of patients reported at least 1 reason for delay. Patients with higher levels of depressive symptoms were more likely to cite embarrassment, problems with transportation, and financial concerns as a reason for delay. Patients with anxiety not only cited nonsymptom-related reasons but also reported symptom-related reasons for delay in seeking care (ie, symptoms seemed vague, not sure of symptoms, symptoms didn't seem to be serious enough, and symptoms were different from the last episode). In multiple regression, patients with greater depressive symptoms and anxiety had a greater number of reasons for delay in seeking care (P = .003 and P = .023, respectively).

CONCLUSIONS

Our findings suggest that enhancement of patients' symptom appraisal abilities and improvement in psychological distress may result in a reduction in delay in seeking medical care for worsening symptoms in rural patients with HF.

Rural-urban outcome differences associated with COVID-19 hospitalizations in North Carolina

People living in rural regions in the United States face more health challenges than their non-rural counterparts which could put them at additional risks during the COVID-19 pandemic. Few studies have examined if rurality is associated with additional mortality risk among those hospitalized for COVID-19. We studied a retrospective cohort of 3,991 people hospitalized with SARS-CoV-2 infections discharged between March 1 and September 30, 2020 in one of 17 hospitals in North Carolina that collaborate as a clinical data research network. Patient demographics, comorbidities, symptoms and laboratory data were examined. Logistic regression was used to evaluate associations of rurality with a composite outcome of death/hospice discharge. Comorbidities were more common in the rural patient population as were the number of comorbidities per patient. Overall, 505 patients died prior to discharge and 63 patients were discharged to hospice. Among rural patients, 16.5% died or were discharged to hospice vs. 13.3% in the urban cohort resulting in greater odds of death/hospice discharge (OR 1.3, 95% CI 1.1, 1.6). This estimate decreased minimally when adjusted for age, sex, race/ethnicity, payer, disease comorbidities, presenting oxygen levels and cytokine levels (adjusted model OR 1.2, 95% CI 1.0, 1.5). This analysis demonstrated a higher COVID-19 mortality risk among rural residents of NC. Implementing policy changes may mitigate such disparities going forward.

A systematic literature review of health disparities among rural people with epilepsy (RPWE) in the United States and Canada

BACKGROUND

Epilepsy is a leading cause of global disease burden, with people with epilepsy (PWE) experiencing adverse health outcomes related to the psychiatric comorbidities and socioeconomic consequences of the disorder. Rural populations are more likely to be impoverished or uninsured, which could impact health outcomes for rural-dwelling PWE (RPWE).

AIMS

This systematic literature review identified original research studying health disparities and outcomes among RPWE in the United States and Canada to (1) characterize the disparities faced by RPWE and (2) elucidate the effects of these disparities upon clinical outcomes.

METHODS

We performed a systematic search of six electronic databases: Pubmed, Cochrane, PsychInfo, Web of Science, Scopus, and Ovid. Articles considered were original research reports conducted in Canada or the United States before August 2020. A modified Newcastle Ottawa Scale was used to assess the quality of the included studies.

RESULTS

Our search returned 2093 articles that examined the health disparities of RPWE, of which six met criteria for this review. Outcome measures of health disparity included in these papers were mortality (2; 33%), use of health resources (2; 33%), and epilepsy prevalence (2; 33%). Only one paper (16%) concluded that RPWE experienced worse health outcomes relative to urban-dwelling PWE, while 5 (84%) found no difference.

CONCLUSION

Our study did not find sufficient evidence that RPWE in the US and Canada experience significant health disparities compared to similar urban populations of PWE. More research using prospective studies and datasets allowing better characterization of rurality is required.

Urban-rural differences in COVID-19 exposures and outcomes in the South: A preliminary analysis of South Carolina

As the COVID-19 pandemic moved beyond the initial heavily impacted and urbanized Northeast region of the United States, hotspots of cases in other urban areas ensued across the country in early 2020. In South Carolina, the spatial and temporal patterns were different, initially concentrating in small towns within metro counties, then diffusing to centralized urban areas and rural areas. When mitigation restrictions were relaxed, hotspots reappeared in the major cities. This paper examines the county-scale spatial and temporal patterns of confirmed cases of COVID-19 for South Carolina from March 1st-September 5th, 2020. We first describe the initial diffusion of the new confirmed cases per week across the state, which remained under 2,000 cases until Memorial Day weekend (epi week 23) then dramatically increased, peaking in mid-July (epi week 29), and slowly declining thereafter. Second, we found significant differences in cases and deaths between urban and rural counties, partially related to the timing of the number of confirmed cases and deaths and the implementation of state and local mitigations. Third, we found that the case rates and mortality rates positively correlated with pre-existing social vulnerability. There was also a negative correlation between mortality rates and county resilience patterns, as expected, suggesting that counties with higher levels of inherent resilience had fewer deaths per 100,000 population.

Associations between population density and clinical and sociodemographic factors in women living with HIV in the Southern United States

To explore the associations of urbanicity with clinical/behavioral outcomes and sociodemographic factors among women living with HIV in the Southern United States, 523 participants of the Women's Interagency HIV Study were classified into population density quartiles. Rural-Urban Commuting Area codes revealed that 7% resided in areas where >30% commute to urban areas, 2% resided in small towns or rural areas, and 91% resided in varying densities of urban areas. Although women in lower density, mostly suburban areas reported higher socioeconomic indicators such as advanced education and greater annual household income, larger proportions of women in the lowest density quartile perceived discrimination in health care settings and agreed with several internalized HIV stigma scale items. Women in the lower quartiles had higher CD4 counts, while those in the lowest quartile were more likely to have a suppressed HIV viral load, report being employed, and not report a history of drug use or current heavy alcohol use. More research is needed to understand the interplay between population density and mechanisms contributing to HIV control as well as increased internalized stigma and perceived discrimination, along with how to target interventions to improve outcomes for individuals with HIV across urban, suburban, and rural areas.

National and Regional Variation in Local Primary Care Physician Density Relative to the Uninsured and the Affordable Care Act

This study is the first to examine primary care physician (PCP) density relative to the uninsured at the local level prior to and after insurance expansion under the Affordable Care Act. Primary care physician density is associated with access to care, lower inpatient and emergency care, and primary care services. However, access to primary care among the uninsured may be limited due to inadequate availability of PCPs. Core-Based Statistical Area (CBSA) data from the Area Health Resource File were retrospectively examined before and after Medicaid expansion. Multiple logistic regressions were modeled for PCP density with predictor interaction effects for percentage uninsured, Medicaid expansion status, and US Census regions. Medicaid expansion CBSAs had significantly lower proportions of uninsured and higher PCP density compared with their nonexpansion counterparts. Nationally, increasing proportions of the uninsured were significantly associated with decreasing PCP density. Most notably, there is an expected 32% lower PCP density in Western Medicaid expansion areas with many uninsured (90th percentile) compared with those with few uninsured (10th percentile). Areas expanding Medicaid with greater proportions of people becoming insured postexpansion had significantly fewer PCPs. Areas with greater proportions of the uninsured may have reduced access to primary care due to the paucity of PCPs in these areas. Efforts to improve access should consider a lack of local PCPs as a limitation for ensuring accessible and timely care. Health care and policy leaders should focus on answers to improve the local availability of primary care clinicians in underserved communities.

Cost-effectiveness analysis of a physician deployment program to improve access to healthcare in rural and underserved areas in the Philippines

OBJECTIVES

The objective of this study is to explore the cost-effectiveness of Doctor to the Barrios (DTTB), a physician deployment program in the Philippines.

DESIGN

Cost-effectiveness analysis using decision tree models with a lifetime time horizon and probabilistic sensitivity analysis.

SETTING

Societal and healthcare perspectives.

POPULATION

Hypothetical cohort of children under 5 years in two provinces (Aklan and Nueva Ecija) and in a representative rural municipality.

PARTICIPANTS

None.

INTERVENTIONS

DTTB's impact on paediatric pneumonia and diarrhoea outcomes compared with a scenario without DTTB.

MAIN OUTCOME MEASURES

Costs, effectiveness (in terms of lives saved and quality-adjusted life years (QALYs) gained) and incremental cost-effectiveness ratio (ICER).

RESULTS

DTTB is cost-effective in the two provinces that were included in the study from societal and healthcare perspectives. Looking at a representative rural municipality, base case analysis and probabilistic sensitivity analyses suggest that DTTB has an ICER of 27 192 per QALY gained from a societal perspective. From a healthcare perspective, the base case ICER of DTTB is Philippine pesos (PHP) 71 839 per QALY gained and PHP 2 064 167 per life saved, and 10 000 Monte Carlo simulations produced similar average estimates. The cost per QALY of DTTB from a healthcare perspective is lower than the WHO recommended willingness-to-pay threshold of 100% of the country's per-capita gross domestic product.

CONCLUSIONS

DTTB can be a cost-effective intervention, but its value varies by setting and the conditions of the municipality where it is implemented. By focusing on a narrow set of paediatric outcomes, this study has likely underestimated the health benefits of DTTB. Additional research is needed to understand the full extent of DTTB's impact on the health of communities in rural and remote areas. Future cost-effectiveness analysis should empirically estimate various parameters and include other health conditions in addition to pneumonia and diarrhoea in children.

Inequality in outpatient resource utilization among older adults during the 2007-2008 financial crisis: findings from Taiwan

BACKGROUND

Equity in medical resource utilization is a crucial concern in countries with national health insurance systems. From the perspective of an active aging framework, public health insurance is one of the pillars of economic security, as suggested by the World Bank, to achieve the goal of social security for older adults. This study thus sought to quantify income-related inequality in national health insurance systems, especially during the global economic crisis of 2007-2008.

METHODS

By employing the Taiwan National Health Interview Surveys (2005 and 2009) datasets, we analyzed the socioeconomic inequality of outpatient service utilization for older Taiwanese adults during the financial crisis of 2007-2008. We used corrected concentration indices (CCIs) to examine inequalities over time. Furthermore, we decomposed socioeconomic inequalities to reveal the contributions of determinant factors. The dependent variables related to whether participants had used outpatient services in the previous month, and the independent factors included individual's needs, enabling, predisposing, and environmental factors proposed by Andersen model.

RESULTS

The sample consisted of 2415 observations in 2005 and 2554 observations in 2009. The income-related health care inequality was minor from pro-rich to pro-poor across the study duration, although the difference was insignificant (women: from a concentration index [CI] of 0.0256 in 2005 to a CI of - 0.0098 in 2009; men: from a CI of 0.0379 in 2005 to a CI of 0.0310 in 2009). We used a probit model to analyze the effect of explanatory factors on outpatient resource utilization by men and women. After other factors were controlled for, we found that that the income variable had a positive and significant effect on outpatient service utilization in 2009 and the absolute contribution of income to inequality notably increased from 0.0480 in 2005 to 0.3247 in 2009 for older women.

CONCLUSIONS

In conclusion, Taiwan's National Health Insurance system guarantees the accessibility of health care services to older adults, but slight income-related inequality was maintained in the outpatient resource utilization of women during the 2007-2008 financial crisis. Close attention should be paid to the vulnerability of women during times of economic insecurity.

Identifying Determinants for Traveled Distance and Bypassing in Outpatient Care: A Scoping Review

The outpatient sector represents a growing share of health care. This review examines how patients choose their physician for continuous outpatient care and why they are willing to bypass the nearest physician. It was conducted according to the PRISMA extension for scoping reviews (PRISMA-ScR). Three databases (PubMed/Medline, ScienceDirect, and Ovid Medline) were searched, focusing on articles in which distance influenced the choice of physician. In all, 1,308 articles were accessed, and 17 selected for final review. First, we extracted methods for assessing distance traveled and bypassing. Second, we identified determinants that directly influence the traveled distance and transferred all into a conceptual framework. The center of this framework is the individual "willingness-to-go", which reflects the willingness of patients to accept additional distances. Our findings can support studies on patient mobility and physician choice, which are essential for examining both the distribution and use of medical services, as well as for adequate need related planning.

Increased Prevalence of Obesity/Type 2 Diabetes and Lower Levels of Lithium in Rural Texas Counties May Explain Greater Alzheimer's Disease Risk

BACKGROUND/OBJECTIVE

To compare Alzheimer's disease (AD) mortality rates and coinciding risk factors in rural and urban Texas populations.

METHODS

155 Texas counties were divided into 73 rural and 82 urban areas using the U.S. Census Bureau definition of rurality. Changes in age-adjusted AD mortality across these counties were calculated using a 7-year aggregation model from 2000-2006 and 2009-2015. Data pertaining to gender, race, education, obesity, diabetes, physical inactivity, and lithium concentrations in tap water were also collected from readily available databases.

RESULTS

Change in age-adjusted AD mortality was higher in rural counties (9.5±1.4) versus urban (5.9±1.1) over the time period examined. Similarly, obesity (30.2±0.2% ), diabetes (11.0±0.1% ), and physical inactivity (29.4±0.2% ) levels were significantly higher in rural populations compared to urban (29.1±0.2%, 9.7±0.1%, and 26.7±0.3, respectively). In contrast, the percent of population with some college education (40.1±0.7% ) was lower compared to urban (29.4±0.2% and 44.4±0.9%, respectively). Lithium concentrations in tap water was significantly lower in rural counties compared to urban (63.3±8.2 and 33.4±4.7μg/L, respectively). No significant differences were observed among females and however, we did find significant differences in the percent of African American and Hispanics. Correlational analysis uncovered a negative association between education status and AD mortality over time (r = -0.17). Further analysis controlling for physical inactivity, education, and trace lithium concentrations results in a loss of statistical significance.

CONCLUSIONS

AD mortality rates are higher in rural counties when compared to urban counties, and this may be linked to greater physical inactivity, obesity, and diabetes, as well as lower trace lithium levels in tap water.

The enigma of doctor-patient relationship

The doctor-patient relationship is crucial to the health-care delivery. In the past, the relationship was viewed as one between a healer and a sick person. However, in the modern era, it is seen as an interaction between a care provider and a service user. The Mental Healthcare Act (MHCA) 2017 gives importance to rights and provision for more autonomy to patients. We examined, in the context of the existing literature, the potential impact the implementation of MHCA 2017 can have on the doctor-patient relationship. A bond between doctor and patient that is based on trust has been an integral part of patient care and has been described to promote recovery, reduce relapse, and enhance treatment adherence. Growing mistrust among patients toward doctors leads them to change their doctors frequently, and due to this, the patients are at risk of losing the therapeutic benefit of the doctor-patient relationship. The doctor-patient relationship has been understudied in areas of health-care need, such as in rural areas, where accessibility and availability of care itself become the most important goal. Medical advancement, with several new treatment options, as well as the availability of many experts for patients to choose from, seems a boon turning into a bane. MHCA 2017 and other health-care policies so far have not given importance to this relationship that is being damaged by several factors including rising health-care costs, especially in private sector and after patients have become "consumers." However, for now, the foremost thing is the psychiatrists have to work to comply with the law and document to justify clinical decisions.

Geographic variation in health insurance benefits in Qianjiang District, China: a cross-sectional study

BACKGROUND

Health insurance contributes to reducing the economic burden of disease and improving access to healthcare. In 2016, the Chinese government announced the integration of the New Cooperative Medical Scheme (NCMS) and Urban Resident Basic Medical Insurance (URBMI) to reduce system segmentation. Nevertheless, it was unclear whether there would be any geographic variation in health insurance benefits if the two types of insurance were integrated. The aim of this study was to identify the potential geographic variation in health insurance benefits and the related contributing factors.

METHODS

This cross-sectional study was carried out in Qianjiang District, where the NCMS and URBMI were integrated into Urban and Rural Resident Basic Medical Insurance Scheme (URRBMI) in 2010. All beneficiaries under the URRBMI were hospitalized at least once in 2013, totaling 445,254 persons and 65,877 person-times, were included in this study. Town-level data on health insurance benefits, healthcare utilization, and socioeconomic and geographical characteristics were collected through health insurance system, self-report questionnaires, and the 2014 Statistical Yearbook of Qianjiang District. A simplified Theil index at town level was calculated to measure geographic variation in health insurance benefits. Colored maps were created to visualize the variation in geographic distribution of benefits. The effects of healthcare utilization and socioeconomic and geographical characteristics on geographic variation in health insurance benefits were estimated with a multiple linear regression analysis.

RESULTS

Different Theil index values were calculated for different towns, and the Theil index values for compensation by person-times and amount were 2.5028 and 1.8394 in primary healthcare institutions and 1.1466 and 0.9204 in secondary healthcare institutions. Healthcare-seeking behavior and economic factors were positively associated with health insurance benefits in compensation by person-times significantly, meanwhile, geographical accessibility and economic factors had positive effects (p < 0.05).

CONCLUSIONS

The geographic variation in health insurance benefits widely existed in Qianjiang District and the distribution of health insurance benefits for insured inpatients in primary healthcare institutions was distinctly different from that in secondary healthcare institutions. When combining the NRCM and URMIS in China, the geographical accessibility, healthcare-seeking behavior and economic factors required significant attention.

The Relationship Between the Supply of Primary Care Physicians and Measures of Breast Health Service Use

BACKGROUND

To investigate whether women are more likely to report receipt of a mammography recommendation from a doctor or mammography use if they reside in primary care service areas (PCSAs) having a greater number of clinically active primary care physicians.

MATERIALS AND METHODS

The analysis used a nationally representative sample of women, aged 40 years and above (n = 10,706 unweighted respondents), extracted from the 2005 National Health Interview Survey. The restricted geocoded addresses of the respondents were linked to PCSA data on physician density at a secure research data center. Multivariable logistic regression was used to determine whether, after adjustment, specific measures of primary care providers (e.g., the number of obstetricians and gynecologists [Ob-GyNs] per 10,000 population) were associated with either recommendation receipt or mammography use.

RESULTS

After adjusting for other factors, a one-unit increase in the PCSA number of Ob-GyNs per 10,000 population increased the odds of mammography recommendation receipt by 9% and the odds of mammography use by 9%. The ratio of international medical graduate Ob-GyNs to US-trained Ob-GyNs in a PCSA was negatively associated with mammography use.

CONCLUSION

The results from this nationwide study underscore the importance of using physician density measures estimated from within bounded medical markets, where women reside and actually seek preventive breast health services. Results support the hypothesis that PCSA physician supply is independently associated with both mammography recommendation receipt and mammography utilization.

Regional differences in recommended cancer treatment for the elderly

BACKGROUND

Little is known about regional variation in cancer treatment and its determinants. We compare rates of adherence to treatment guidelines for elderly patients across Texas and whether local specialist supply is an important determinant of treatment variation.

METHODS

Previous literature reviewed indicated 7 recommended courses of treatment for colorectal, pancreatic, and prostate cancer. We analyzed Texas Cancer Registry data linked with Medicare claims for the years 2004 to 2007 to study patients with these cancers. We tested for unadjusted and adjusted differences in treatment rates across 22 hospital referral regions (HRR). We tested whether variation in the local supply of specialists treating each cancer was an important determinant of treatment.

RESULTS

We found significant differences in adjusted treatment rates across regions. For removal and examination of 12+ lymph nodes with colon cancer resection, 13 of 22 HRRs had rates significantly different from the median region. For adjuvant chemotherapy for regional colon cancer, five HRRs significantly differed from the median. For prostate cancer treatment with a favorable diagnosis, nine HRRs differed from the median HRR. Of the 7 treatments, only the local availability of surgeons was an important determinant for excision of lymph nodes for colon cancer patients.

CONCLUSIONS

There are significant variations across Texas for seven recommended cancer treatments. No one region has consistently higher or lower treatments than other regions, and local specialist supply is not an important predictor of treatment. Different factors may be determining regional variation in treatment rates across cancer types and treatment options.

Association between Temporal Changes in Primary Care Workforce and Patient Outcomes

OBJECTIVE

To examine the association between 10-year temporal changes in the primary care workforce and Medicare beneficiaries' outcomes.

DATA SOURCES

2001 and 2011 American Medical Association Masterfiles and fee-for-service Medicare claims.

STUDY DESIGN/METHODS

We calculated two primary care workforce measures within Primary Care Service Areas: the number of primary care physicians per 10,000 population (per capita) and the number of Medicare primary care full-time equivalents (FTEs) per 10,000 Medicare beneficiaries. The three outcomes were mortality, ambulatory care-sensitive condition (ACSC) hospitalizations, and emergency department (ED) visits. We measured the marginal association between changes in primary care workforce and patient outcomes using Poisson regression models.

PRINCIPAL FINDINGS

An increase of one primary care physician per 10,000 population was associated with 15.1 fewer deaths per 100,000 and 39.7 fewer ACSC hospitalizations per 100,000 (both p < .05). An increase of one Medicare primary care FTE per 10,000 beneficiaries was associated with 82.8 fewer deaths per 100,000, 160.8 fewer ACSC hospitalizations per 100,000, and 712.3 fewer ED visits per 100,000 (all p < .05).

CONCLUSIONS

Medicare beneficiaries' outcomes improved as the number of primary care physicians and their clinical effort increased.

Access to care: beyond health insurance

Access to healthcare is derived from a complex mix of personal beliefs, cultural norms, and social structure, combined with available individual and community resources. This article reviews the concept of access to care and its evolution since the 1960s. The difference between potential and realized access and the question of social justice as it relates to access to care also are explored.

Trips to medical care among persons with disabilities: Evidence from the 2009 National Household Travel Survey

BACKGROUND

Persons with disabilities experience multiple barriers to obtaining necessary medical care. Problems with access to transportation and provider choice could lead to longer travel distances and longer travel times to medical appointments.

OBJECTIVE/HYPOTHESIS

1) Persons with disabilities travel further distances to receive necessary care, holding other variables constant. 2) Travel to medical appointments takes a longer amount of time for persons with disabilities, controlling for distance, mode of transportation and other factors. 3) Disability is the key factor influencing access to transportation options, holding other variables constant.

METHODS

The 2009 National Household Travel Survey (NHTS) is used to examine travel patterns of persons with disabilities as they access medical care. Logistic regressions are run on distance to medical appointments, time taken for travel to medical appointments, and access to private vehicle.

RESULTS

There is no difference in the distance traveled, but trips to medical care by persons with disabilities take longer amounts of time than trips taken by persons without disabilities, holding other variables constant. Access to private transportation is similar for both persons with and without disabilities.

CONCLUSIONS

Persons with disabilities experience longer travel times to receive medical care, despite traveling similar distances and having similar access to private vehicles.

Rural-Urban Differences in Alzheimer's Disease and Related Disorders Diagnostic Prevalence in Kentucky and West Virginia

PURPOSE

Older adults living in rural areas may face barriers to obtaining a diagnosis of Alzheimer's disease and related disorders (ADRD). We sought to examine rural-urban differences in prevalence of ADRD among Medicare beneficiaries in Kentucky and West Virginia, 2 contiguous, geographically similar states with large rural areas and aged populations.

METHODS

We used Centers for Medicare and Medicaid Services Public Use Files data from 2007 to 2013 to assess prevalence of ADRD at the county level among all Medicare beneficiaries in each state. Rural-Urban Continuum Codes were used to classify counties as rural or urban. We used Poisson regression to estimate unadjusted and adjusted prevalence ratios. Primary analyses focused on 2013 data and were repeated for 2007 to 2012. This study was completely ecologic.

FINDINGS

After adjusting for state, average beneficiary age, percent of female beneficiaries, percent of beneficiaries eligible for Medicaid in each county, Central Appalachian county, percent of age-eligible residents enrolled in Medicare, and percent of residents under age 65 enrolled in Medicare in our adjusted models, we found that 2013 ADRD diagnostic prevalence was 11% lower in rural counties (95% CI: 9%-13%).

CONCLUSIONS

Medicare beneficiaries in rural counties in Kentucky and West Virginia may be underdiagnosed with respect to ADRD. However, due to the ecologic design, and evidence of a younger, more heavily male beneficiary population in some rural areas, further studies using individual-level data are needed to confirm the results.

Effects of Geographical Accessibility on the Use of Outpatient Care Services: Quasi-Experimental Evidence from Panel Count Data

In 2010-2012, new outpatient service locations were established in Hungarian micro-regions, which had lacked such capacities before. We exploit this quasi-experiment to estimate the effect of geographical accessibility on outpatient case numbers using both individual-level and semi-aggregate panel data. We find a 24-27 per cent increase of case numbers as a result of the establishments. Our specialty-by-specialty estimates imply that a 1-min reduction of travel time to the nearest outpatient unit increases case numbers for example by 0.9 per cent in internal care and 3.1 per cent in rheumatology. The size of the new outpatient capacities has a separate effect, raising the possibility of the presence of supplier-induced demand. By combining a fixed-effects logit and a fixed-effects truncated Poisson estimator, we decompose the effects into increases in the probability of ever visiting a doctor on the one hand and an increase of the frequency of visits on the other hand. We find that new visits were dominant in the vast majority of specialties, whereas both margins were important for example in rheumatology. Finally, we demonstrate the usefulness of the fixed-effects truncated Poisson estimator in modelling count data by examining its robustness by simulations.

Increased Long-Term Mortality among Black CABG Patients Receiving Preoperative Inotropic Agents

The aim of this study was to examine racial differences in long-term mortality after coronary artery bypass grafting (CABG), stratified by preoperative use of inotropic agents. Black and white patients who required preoperative inotropic support prior to undergoing CABG procedures between 1992 and 2011 were compared. Mortality probabilities were computed using the Kaplan-Meier product-limit method. Hazard ratios (HR) and 95% confidence intervals (CI) were computed using a Cox regression model. A total of 15,765 patients underwent CABG, of whom 211 received preoperative inotropic agents within 48 hours of surgery. Long-term mortality differed by race (black versus white) among preoperative inotropic category (inotropes: adjusted HR = 1.6, 95% CI = 1.009–2.4; no inotropes: adjusted HR = 1.15, 95% CI = 1.08–1.2; P_interaction < 0.0001). Our study identified an independent preoperative risk-factor for long-term mortality among blacks receiving CABG. This outcome provides information that may be useful for surgeons, primary care providers, and their patients.

Exposing some important barriers to health care access in the rural USA

OBJECTIVES

To review research published before and after the passage of the Patient Protection and Affordable Care Act (2010) examining barriers in seeking or accessing health care in rural populations in the USA.

STUDY DESIGN

This literature review was based on a comprehensive search for all literature researching rural health care provision and access in the USA.

METHODS

Pubmed, Proquest Allied Nursing and Health Literature, National Rural Health Association (NRHA) Resource Center and Google Scholar databases were searched using the Medical Subject Headings (MeSH) 'Rural Health Services' and 'Rural Health.' MeSH subtitle headings used were 'USA,' 'utilization,' 'trends' and 'supply and distribution.' Keywords added to the search parameters were 'access,' 'rural' and 'health care.' Searches in Google Scholar employed the phrases 'health care disparities in the USA,' inequalities in 'health care in the USA,' 'health care in rural USA' and 'access to health care in rural USA.' After eliminating non-relevant articles, 34 articles were included.

RESULTS

Significant differences in health care access between rural and urban areas exist. Reluctance to seek health care in rural areas was based on cultural and financial constraints, often compounded by a scarcity of services, a lack of trained physicians, insufficient public transport, and poor availability of broadband internet services. Rural residents were found to have poorer health, with rural areas having difficulty in attracting and retaining physicians, and maintaining health services on a par with their urban counterparts.

CONCLUSIONS

Rural and urban health care disparities require an ongoing program of reform with the aim to improve the provision of services, promote recruitment, training and career development of rural health care professionals, increase comprehensive health insurance coverage and engage rural residents and healthcare providers in health promotion.

Primary Care Appointment Availability and Preventive Care Utilization

Insurance expansions under the Affordable Care Act raise concerns about primary care access in communities with large numbers of newly insured. We linked individual-level, cross-sectional data on adult preventive care utilization from the 2011-2012 Behavioral Risk Factor Surveillance System to novel county-level measures of primary care appointment availability collected from an experimental audit study conducted in 10 states in 2012 to 2013 and other county-level health service and demographic measures. In multivariate regressions, we found higher county-level appointment availability for privately insured adults was associated with significantly lower preventive care utilization among adults likely to have private insurance. Estimates were attenuated after controlling for county-level uninsurance, poverty, and unemployment. By contrast, greater availability of Medicaid appointments was associated with higher, but not statistically significant, preventive care utilization for likely Medicaid enrollees. Our study highlights that the relationship between preventive care utilization and primary care access in small areas likely differs by insurance status.

Race, insurance type, and stage of presentation among lung cancer patients

The purpose of this study was to determine whether African-American lung cancer patients are diagnosed at a later stage than white patients, regardless of insurance type. The relationship between race and stage at diagnosis by insurance type was assessed using a Poisson regression model, with relative risk as the measure of association. The setting of the study was a large tertiary care cancer center located in the southeastern United States. Patients who were diagnosed with lung cancer between 2001 and 2010 were included in the study. A total of 717 (31%) African-American and 1,634 (69%) white lung cancer patients were treated at our facility during the study period. Adjusting for age, sex, and smoking-related histology, African-American patients were diagnosed at a statistically significant later stage (III/IV versus I/II) than whites for all insurance types, with the exception of Medicaid. Our results suggest that equivalent insurance coverage may not ensure equal presentation of stage between African-American and white lung cancer patients. Future research is needed to determine whether other factors such as treatment delays, suboptimal preventive care, inappropriate specialist referral, community segregation, and a lack of patient trust in health care providers may explain the continuing racial disparities observed in the current study.

Exploring the Association of Homicides in Northern Mexico and Healthcare Access for US Residents

Many legal residents in the United States (US)-Mexico border region cross from the US into Mexico for medical treatment and pharmaceuticals. We analyzed whether recent increases in homicides in Mexico are associated with reduced healthcare access for US border residents. We used data on healthcare access, legal entries to the US from Mexico, and Mexican homicide rates (2002-2010). Poisson regression models estimated associations between homicide rates and total legal US entries. Multivariate difference-in-difference linear probability models evaluated associations between Mexican homicide rates and self-reported measures of healthcare access for US residents. Increased homicide rates were associated with decreased legal entries to the US from Mexico. Contrary to expectations, homicides did not have significant associations with healthcare access measures for legal residents in US border counties. Despite a decrease in border crossings, increased violence in Mexico did not appear to negatively affect healthcare access for US border residents.

Developing a research agenda for cardiovascular disease prevention in high-risk rural communities

The National Institutes of Health convened a workshop to engage researchers and practitioners in dialogue on research issues viewed as either unique or of particular relevance to rural areas, key content areas needed to inform policy and practice in rural settings, and ways rural contexts may influence study design, implementation, assessment of outcomes, and dissemination. Our purpose was to develop a research agenda to address the disproportionate burden of cardiovascular disease (CVD) and related risk factors among populations living in rural areas. Complementary presentations used theoretical and methodological principles to describe research and practice examples from rural settings. Participants created a comprehensive CVD research agenda that identified themes and challenges, and provided 21 recommendations to guide research, practice, and programs in rural areas.

Rural considerations in establishing network adequacy standards for qualified health plans in state and regional health insurance exchanges

PURPOSE

The Affordable Care Act (ACA) requires Health Insurance Exchanges (HIEs) to specify network adequacy standards for the Qualified Health Plans (QHPs) they offer to consumers. This article examines rural issues surrounding network adequacy standards, and offers recommendations for crafting standards that optimize rural access.

METHOD

This policy analysis reviews ACA requirements for QHP network adequacy standards, considering Medicaid managed care and Medicare Advantage (MA) standards as models. We analyze the implications of stringent vs flexible access standards in terms of how choices might affect health plans' participation in rural markets and rural enrollees' access to care. Finally, we propose strategies for designing standards with the degree of flexibility most likely to benefit rural consumers.

FINDINGS

A traditional approach to safeguarding rural access is to impose strict network adequacy standards on plans in rural areas. However, if strict standards prove difficult to meet due to rural provider scarcity, they might diminish QHPs' willingness to serve rural areas. Thus, they could exacerbate rather than alleviate rural access problems.

CONCLUSIONS

To benefit rural communities, network adequacy standards must be strong enough to provide real protections for beneficiaries, yet flexible enough to accommodate rural delivery system constraints and remain attainable for QHPs. Useful strategies to achieve this balance might include: adjusting standards according to degrees of rurality and rural utilization norms; counting midlevel clinicians toward fulfillment of patient-provider ratios; and allowing plans to ensure rural access through delivery system innovations such as telehealth.

Changes in preventable hospitalization patterns among the adults: a small area analysis of US states

The study examines the variation and changes in preventable hospitalization (PH) rates across small areas over 1995-2005 in 5 US states for adults (aged 18-64 years). Using hospital discharge data from the Agency for Healthcare Research and Quality and contextual data from Health Resources and Services Administration, the study examines the role of managed care, primary care physician supply, and sociodemographic factors on adult PH rates. A stronger influence of minority and uninsured status, weaker contributions of managed care enrollment in the commercial as well as in the Medicaid markets, and weaker contributions of primary care density may have caused slower than expected reduction in adult PH rates.

Transportation to clinic: findings from a pilot clinic-based survey of low-income suburbanites

Health care policymakers have cited transportation barriers as key obstacles to providing health care to low-income suburbanites, particularly because suburbs have become home to a growing number of recent immigrants who are less likely to own cars than their neighbors. In a suburb of New York City, we conducted a pilot survey of low income, largely immigrant clients in four public clinics, to find out how much transportation difficulties limit their access to primary care. Clients were receptive to the opportunity to participate in the survey (response rate = 94%). Nearly one-quarter reported having transportation problems that had caused them to miss or reschedule a clinic appointment in the past. Difficulties included limited and unreliable local bus service, and a tenuous connection to a car. Our pilot work suggests that this population is willing to participate in a survey on this topic. Further, since even among those attending clinic there was significant evidence of past transportation problems, it suggests that a population based survey would yield information about substantial transportation barriers to health care.

The effect of community uninsurance rates on access to health care

OBJECTIVE

To investigate the effect of local uninsurance rates on access to health care for the uninsured and insured and improve on recent studies by controlling for time-invariant differences across markets.

DATA SOURCES

Individual-level data from the 1996 and 2003 Community Tracking Study, and market-level data from other sources, including the Area Resource File and the Bureau of Primary Healthcare.

STUDY DESIGN

Market-level fixed effects models estimate the effect of changes in uninsurance rates within markets on access to care, measured by whether individuals report forgoing necessary care. Instrumental variables models are also estimated.

PRINCIPAL FINDINGS

Increases in the rate of uninsurance are associated with poorer access to necessary care among the uninsured. In contrast with recent evidence, increases in uninsurance had no effect on access to care among the insured. Instrumental variables results are similar, although not statistically significant.

CONCLUSIONS

Changes in rates of insurance coverage are likely to affect access to care for both previously and continuously uninsured. In contrast with earlier studies, there is no evidence of spillover effects on the insured, suggesting that such policy changes may have little effect on access for those who are already insured.

Transportation to clinic: findings from a pilot clinic-based survey of low-income suburbanites

Health care policymakers have cited transportation barriers as key obstacles to providing health care to low-income suburbanites, particularly because suburbs have become home to a growing number of recent immigrants who are less likely to own cars than their neighbors. In a suburb of New York City, we conducted a pilot survey of low income, largely immigrant clients in four public clinics, to find out how much transportation difficulties limit their access to primary care. Clients were receptive to the opportunity to participate in the survey (response rate = 94%). Nearly one-quarter reported having transportation problems that had caused them to miss or reschedule a clinic appointment in the past. Difficulties included limited and unreliable local bus service, and a tenuous connection to a car. Our pilot work suggests that this population is willing to participate in a survey on this topic. Further, since even among those attending clinic there was significant evidence of past transportation problems, it suggests that a population based survey would yield information about substantial transportation barriers to health care.

Nonfinancial barriers and access to care for U.S. adults

OBJECTIVE

To identify prevalences and predictors of nonfinancial barriers that lead to unmet need or delayed care among U.S. adults.

DATA SOURCE

2007 Health Tracking Household Survey.

STUDY DESIGN

Reasons for unmet need or delayed care in the previous 12 months were assigned to one of five dimensions in the Penchansky and Thomas model of access to care. Prevalences of barriers in each nonfinancial dimension were estimated for all adults and for adults with affordability barriers. Multivariable logistic regression models were used to estimate associations between individual, household, and insurance characteristics and barriers in each access dimension.

PRINCIPAL FINDINGS

Eighteen percent of U.S. adults experienced affordability barriers and 21 percent experienced nonfinancial barriers that led to unmet need or delayed care. Two-thirds of adults with affordability barriers also reported nonfinancial barriers. Young adults, women, individuals with lower incomes, parents, and persons with at least one chronic illness had higher adjusted prevalences of nonfinancial barriers.

CONCLUSIONS

Nonfinancial barriers are common reasons for unmet need or delayed care among U.S. adults and frequently coincide with affordability barriers. Failure to address nonfinancial barriers may limit the impact of policies that seek to expand access by improving the affordability of health care.

Quality of care and patient outcomes in critical access rural hospitals

CONTEXT

Critical access hospitals (CAHs) play a crucial role in the US rural safety net. Current policy efforts have focused primarily on helping these small, isolated hospitals remain financially viable to ensure access for individuals living in rural areas in the United States; however, little is known about the quality of care they provide or the outcomes their patients achieve.

OBJECTIVES

To examine the quality of care and patient outcomes at CAHs and to understand why patterns of care might differ for CAHs vs non-CAHs.

DESIGN, SETTING, AND PATIENTS

A retrospective analysis in 4738 US hospitals of Medicare fee-for-service beneficiaries with acute myocardial infarction (AMI) (10,703 for CAHs vs 469,695 for non-CAHs), congestive heart failure (CHF) (52,927 for CAHs vs 958,790 for non-CAHs), and pneumonia (86,359 for CAHs vs 773,227 for non-CAHs) who were discharged in 2008-2009.

MAIN OUTCOME MEASURES

Clinical capabilities, performance on processes of care, and 30-day mortality rates, adjusted for age, sex, race, and medical comorbidities.

RESULTS

Compared with other hospitals (n = 3470), 1268 CAHs (26.8%) were less likely to have intensive care units (380 [30.0%] vs 2581 [74.4%], P < .001), cardiac catheterization capabilities (6 [0.5%] vs 1654 [47.7%], P < .001), and at least basic electronic health records (80 [6.5%] vs 445 [13.9%], P < .001). The CAHs had lower performance on processes of care than non-CAHs for all 3 conditions examined (concordance with Hospital Quality Alliance process measures for AMI, 91.0% [95% CI, 89.7%-92.3%] vs 97.8% [95% CI, 97.7%-97.9%]; for CHF, 80.6% [95% CI, 79.2%-82.0%] vs 93.5% [95% CI, 93.3%-93.7%]; and for pneumonia, 89.3% [95% CI, 88.6%-90.0%] vs 93.7% [95% CI, 93.6%-93.9%]; P < .001 for each). Patients admitted to CAHs had higher 30-day mortality rates for each condition than those admitted to non-CAHs (for AMI: 23.5% vs 16.2%; adjusted odds ratio [OR], 1.70; 95% confidence interval [CI], 1.61-1.80; P < .001; for CHF: 13.4% vs 10.9%; adjusted OR, 1.28; 95% CI, 1.23-1.32; P < .001; and for pneumonia: 14.1% vs 12.1%; adjusted OR, 1.20; 95% CI, 1.16-1.24; P < .001).

CONCLUSION

Compared with non-CAHs, CAHs had fewer clinical capabilities, worse measured processes of care, and higher mortality rates for patients with AMI, CHF, or pneumonia.

Volunteering, driving status, and mortality in U.S. retirees

OBJECTIVES

To evaluate how accounting for driving status altered the relationship between volunteering and mortality in U.S. retirees.

DESIGN

Observational prospective cohort.

SETTING

Nationally representative sample from the Health and Retirement Study in 2000 and 2002 followed to 2006.

PARTICIPANTS

Retirees aged 65 and older (N=6,408).

MEASUREMENTS

Participants self-reported their volunteering, driving status, age, sex, race or ethnicity, presence of chronic conditions, geriatric syndromes, socioeconomic factors, functional limitations, and psychosocial factors. Death by December 31, 2006, was the outcome.

RESULTS

For drivers, mortality in volunteers (9%) and nonvolunteers (12%) was similar; for limited or non-drivers, mortality for volunteers (15%) was markedly lower than for nonvolunteers (32%). Adjusted results showed that, for drivers, the volunteering-mortality odds ratio (OR) was 0.90 (95% confidence interval (CI)=0.66-1.22), whereas for limited or nondrivers, the OR was 0.62 (95% CI=0.49-0.78) (interaction P=.05). The effect of driving status was greater for rural participants, with greater differences between rural drivers and rural limited or nondrivers (interaction P=.02) and between urban drivers and urban limited or nondrivers (interaction P=.81).

CONCLUSION

The influence of volunteering in decreasing mortality seems to be stronger in rural retirees who are limited or nondrivers. This may be because rural or nondriving retirees are more likely to be socially isolated and thus receive more benefit from the greater social integration from volunteering.

Influence of place of residence in access to specialized cancer care for African Americans

CONTEXT

Disparities in cancer care for rural residents and for African Americans have been documented, but the interaction of these factors is not well understood.

PURPOSE

The authors examined the simultaneous influence of race and place of residence on access to and utilization of specialized cancer care in the United States.

METHODS

Access to specialized cancer care was measured using: (1) travel time to National Cancer Institute (NCI) Cancer Centers, academic medical centers, and any oncologist for the entire continental US population, and (2) per capita availability of oncologists for the entire United States. Utilization was measured as attendance at NCI Cancer Centers, specialized hospitals, and other hospitals in the Surveillance, Epidemiology, and End Results (SEER) program Medicare population from 1998-2004.

FINDINGS

In urban settings, travel times were shorter for African Americans compared with Caucasians for all three cancer care settings, but they were longer for rural African Americans traveling to NCI Cancer Centers. Per capita oncologist availability was not significantly different by race or place of residence. Urban African American patients were almost 70% more likely to attend an NCI Cancer Center than urban Caucasian patients (OR = 1.66; 95% CI 1.51-1.83), whereas rural African American patients were 58% less likely to attend an NCI Cancer Center than rural Caucasian patients (OR = 0.42; 95% CI 0.26-0.66).

CONCLUSIONS

Urban African Americans have similar or better access to specialized cancer care than urban Caucasians, but rural African Americans have relatively poor access and lower utilization compared with all other groups.

Higher physician density is associated with lower incidence of late-stage colorectal cancer

INTRODUCTION

Colorectal cancer (CRC) is the third most common cancer in the United States and a leading cause of cancer related mortality. Routine screening decreases incidence and mortality; however rates of screening remain low. Physician recommendation is a key determinant of screening rates; thus, physician availability may also influence CRC incidence and mortality.

METHODS

Data on CRC incidence and stage at diagnosis was obtained for each county in Pennsylvania from the Pennsylvania cancer registry. Physician density (per 100,000 population) was calculated for each county using physician counts from the American Medical Association. Pearson correlation coefficients and linear regression models were used to examine the association between physician density and CRC incidence and outcomes.

RESULTS

Primary care physician density (Pearson's correlation coefficient: -0.25, p=0.05) and gastroenterologist density (correlation coefficient -0.25, p=0.04) inversely correlated with county-level incidence of late-stage CRC. However, this association was seen only in non-metropolitan counties or those with low population density. On linear regression, non-metropolitan counties which had a high density of gastroenterologists had an incidence of late-stage CRC that was lower by 4/100,000 (reduction of 14%). Low population density counties had lower incidence of late-stage CRC by 5/100,000 (reduction of 17%) when they had at least 3.3 gastroenterologists/100,000 population compared to counties with a lower gastroenterologist-per-population ratio. Gastroenterologist density did not correlate with reduced late-stage CRC incidence prior to institution of Medicare coverage for colonoscopy for routine CRC screening.

CONCLUSION

Higher gastroenterologist or PCP density is associated with 14-17% lower incidence of late-stage CRC in non-metropolitan counties or those with low population density. Efforts at increasing physician supply should target these underserved areas.

Diabetes care and outcomes: disparities across rural America

We examined differences in receipt of diabetes care and selected outcomes between rural and urban persons living with diabetes, using nationally representative data from the 2006 Behavioral Risk Factor Surveillance System (BRFSS). "Rural" was defined as living in a non-metropolitan county. Diabetes care variables were physician visit, HbA1c testing, foot examination, and dilated eye examination. Outcome variables were presence of foot sores and diabetic retinopathy. Analysis was limited to persons 18 and older self-reporting a diagnosis of diabetes (n = 29,501). A lower proportion of rural than urban persons with diabetes reported a dilated eye examination (69.1 vs. 72.4%; P = 0.005) or a foot examination in the past year (70.6 vs. 73.7%; P = 0.016). Conversely, a greater proportion of rural than urban persons reported diabetic retinopathy (25.8 vs. 22.0%; P = 0.007) and having a foot sore taking more than four weeks to heal (13.2 vs. 11.2%; P = 0.036). Rural residence was not associated with receipt of services after individual characteristics were taken into account in adjusted analysis, but remained associated with an increased risk for retinopathy (OR = 1.20, 95% CI = 1.02-1.42). Participation in Diabetes Self-Management Education (DSME) was positively associated with all measures of diabetes care included in the study. Availability of specialty services and travel considerations could explain some of these differences.

Rural-urban differences in preventable hospitalizations among community-dwelling veterans with dementia

CONTEXT

Alzheimer's patients living in rural communities may face significant barriers to effective outpatient medical care.

PURPOSE

We sought to examine rural-urban differences in risk for ambulatory care sensitive hospitalizations (ACSH), an indicator of access to outpatient care, in community-dwelling veterans with dementia.

METHODS

Medicare and Veteran Affairs inpatient claims for 1,186 US veterans with dementia were linked to survey data from the 1998 National Longitudinal Caregiver Survey. ACSH were identified in inpatient claims over a 1-year period following collection of independent variables. Urban Influence Codes were used to classify care recipients into 4 categories of increasing county-level rurality: large metropolitan; small metropolitan; micropolitan; and noncore rural counties. We used the Andersen Behavioral Model of Health Services to identify veteran, caregiver, and community factors that may explain urban-rural differences in ACSH.

FINDINGS

Thirteen percent of care recipients had at least 1 ACSH. The likelihood of an ACSH was greater for patients in noncore rural counties versus large metropolitan areas (22.6% vs 12.8%, unadjusted odds ratio [OR]= 1.99; P < .01). The addition of other Andersen behavioral model variables did not eliminate the disparity (adjusted OR = 1.97; P < .05).

CONCLUSIONS

We found that dementia patients living in the most rural counties were more likely to have an ACSH; this disparity was not explained by differences in caregiver, care recipient, or community factors. Furthermore, the annual rate of ACSH was higher in community-dwelling dementia patients compared to previous reports on the general older adult population. Dementia patients in rural areas may face particular challenges in receiving timely, effective ambulatory care.