Medical Care Research and Review recent issues

Review: Use of Electronic Medical Records for Health Outcomes Research: A Literature Review

Dean, B. B., Lam, J., Natoli, J. L., Butler, Q., Aguilar, D., Nordyke, R. J. — Fri, 30 Oct 2009 15:37:39 PDT

This review assessed the use of electronic medical record (EMR) systems in outcomes research. We systematically searched PubMed to identify articles published from January 2000 to January 2007 involving EMR use for outpatient-based outcomes research in the United States. EMR-based outcomes research studies (n = 126) have increased sixfold since 2000. Although chronic conditions were most common, EMRs were also used to study less common diseases, highlighting the EMRs’ flexibility to examine large cohorts as well as identify patients with rare diseases. Traditional multi-variate modeling techniques were the most commonly used technique to address confounding and potential selection bias. Data validation was a component in a quarter of studies, and many evaluated the EMR’s ability to achieve similar results previously achieved using other data sources. Investigators using EMR data should aim for consistent terminology, focus on adequately describing their methods, and consider appropriate statistical methods to control for confounding and treatment-selection bias.

The Cost-Effectiveness of Direct-to-Consumer Advertising for Prescription Drugs

Atherly, A., Rubin, P. H. — Fri, 30 Oct 2009 15:37:39 PDT

In this paper we use published information to analyze the economic value of Direct to Consumer Advertising (DTCA). The reviewed research finds that DTCA leads to increased demand for the advertised drug and that the effect of the drug tends to be class-wide rather than product specific. There is weak evidence that DTCA may increase compliance and improve clinical outcomes. However, there is little research on the effect of DTCA on inappropriate prescribing or on the characteristics of patients who respond to treatment. On net, if the advertised drugs are cost effective on average and the patients using the drugs in response to the advertisement are similar to other users, DTCA is likely cost effective. Overall, the literature to date is consistent with the idea that DTCA is beneficial, but further research is needed before definitive conclusions can be drawn.

Physician Clinical Information Technology and Health Care Disparities

Ketcham, J. D., Lutfey, K. E., Gerstenberger, E., Link, C. L., McKinlay, J. B. — Fri, 30 Oct 2009 15:37:39 PDT

The authors develop a conceptual framework regarding how information technology (IT) can alter within-physician disparities, and they empirically test some of its implications in the context of coronary heart disease. Using a random experiment on 256 primary care physicians, the authors analyze the relationships between three IT functions (feedback and two types of clinical decision support) and five process-of-care measures. Endogeneity is addressed by eliminating unobserved patient characteristics with vignettes and by proxying for omitted physician characteristics. The results indicate that IT has no effects on physicians’ diagnostic certainty and treatment of vignette patients overall. The authors find that treatment and certainty differ by patient age, gender, and race. Consistent with the framework, IT’s effects on these disparities are complex. Feedback eliminated the gender disparities, but the relationships differed for other IT functions and process measures. Current policies to reduce disparities and increase IT adoption may be in discord.

Determinants of Hospitalist Efficiency: A Qualitative and Quantitative Study

Dynan, L., Stein, R., David, G., Kenny, L. C., Eckman, M., Short, A. D. — Fri, 30 Oct 2009 15:37:39 PDT

Using qualitative and quantitative methods, the authors develop and test hypotheses about the impact of hospitalists on efficiency and quality of care relative to teaching teams. Departure of actual from self-perceived benefits for hospitalists, both individually and collectively, is studied. It was found that hospitalists are, on average, more efficient diagnosticians and/or enhance throughput, as evidenced by having relatively lower charges, through reductions in testing and length-of-stay, than teaching teams. Much of that benefit is concentrated among patients admitted by intensivists. The authors find little evidence of quality focus or of greater use of community resources among hospitalists. Indeed, hospitalists were found to have no effect on the choice of postdischarge outlets. The authors document variation in care delivery among hospitalists. In particular, it was found that among hospitalists there is more variation in achieving shorter length of stay but less variation in use of diagnostic testing.

Group Health Cooperative's Transformation Toward Patient-Centered Access

Fri, 30 Oct 2009 15:37:39 PDT

The Institute of Medicine suggests redesigning health care to ensure safe, effective, timely, efficient, equitable, and patient-centered care. The concept of patient-centered access supports these goals. Group Health, a mixed-model health care system, attempted to improve patients’ access to care through the following changes: (a) offering a patient Web site with patient access to patient—physician secure e-mail, electronic medical records, and health promotion information; (b) offering advanced access to primary physicians; (c) redesigning primary care services to enhance care efficiency; (d) offering direct access to physician specialists; and (e) aligning primary physician compensation through incentives for patient satisfaction, productivity, and secure messaging with patients. In the 2 years following the redesign, patients reported higher satisfaction with certain aspects of access to care, providers reported improvements in the quality of service given to patients, and enrollment in Group Health stayed aligned with statewide trends in health care coverage.

CEO Compensation and Hospital Financial Performance

Reiter, K. L., Sandoval, G. A., Brown, A. D., Pink, G. H. — Fri, 30 Oct 2009 15:37:39 PDT

Growing interest in pay-for-performance and the level of chief executive officers’ (CEOs’) pay raises questions about the link between performance and compensation in the health sector. This study compares the compensation of nonprofit hospital CEOs in Ontario, Canada to the three longest reported and most used measures of hospital financial performance. Our sample consisted of 132 CEOs from 92 hospitals between 1999 and 2006. Unbalanced panel data were analyzed using fixed effects regression. Results suggest that CEO compensation was largely unrelated to hospital financial performance. Inflation-adjusted salaries appeared to increase over time independent of hospital performance, and hospital size was positively correlated with CEO compensation. The apparent upward trend in salary despite some declines in financial performance challenges the fundamental assumption underlying this article, that is, financial performance is likely linked to CEO compensation in Ontario. Further research is needed to understand long-term performance related to compensation incentives.

Foreword

Christianson, J. B. — Fri, 30 Oct 2009 15:40:13 PDT

Review Article: Effectiveness of Patient Care Teams and the Role of Clinical Expertise and Coordination: A Literature Review

Fri, 30 Oct 2009 15:40:13 PDT

Health care is increasingly provided by teams of health professionals rather than by individual doctors. For decision makers, it is imperative to identify the critical elements for effective teams to transform health care workplaces into effective team-based environments. The authors reviewed the research literature published between 1990 and February 2008. The available research indicated that teams with enhanced clinical expertise improved professional performance and had mixed effects on patient outcomes. Teams with improved coordination had some positive effects on patient outcomes and limited effects on costs and resource utilization. The combination of enhanced expertise and coordination only showed some limited effect on patient outcomes. The authors conclude that enhancement of the clinical expertise is a potentially effective component of improving the impact of patient care teams. The added value of coordination functions remained unclear. Overall, current studies provide little insight into the underlying mechanisms of teamwork.

The Impact of Nonphysician Clinicians: Do They Improve the Quality and Cost-Effectiveness of Health Care Services?

Laurant, M., Harmsen, M., Wollersheim, H., Grol, R., Faber, M., Sibbald, B. — Fri, 30 Oct 2009 15:40:13 PDT

Health care is changing rapidly. Unacceptable variations in service access and quality of health care and pressures to contain costs have led to the redefinition of professional roles. The roles of nonphysician clinicians (nurses, physician assistants, and pharmacists) have been extended to the medical domain. It is expected that such revision of roles will improve health care effectiveness and efficiency. The evidence suggests that nonphysician clinicians working as substitutes or supplements for physicians in defined areas of care can maintain and often improve the quality of care and outcomes for patients. The effect on health care costs is mixed, with savings dependent on the context of care and specific nature of role revision. The evidence base underpinning these conclusions is strongest for nurses with a marked paucity of research into pharmacists and physician assistants. More robust evaluative studies into role revision are needed, particularly with regard to economic impacts, before definitive conclusions can be drawn.

Safety and Risk Management Interventions in Hospitals: A Systematic Review of the Literature

Duckers, M., Faber, M., Cruijsberg, J., Grol, R., Schoonhoven, L., Wensing, M. — Fri, 30 Oct 2009 15:40:13 PDT

The aim of this systematic review was (a) to synthesize the evidence on the effectiveness of detection, mitigation, and actions to reduce risks in hospitals and (b) to identify and describe components of interventions responsible for effectiveness. Thirteen literature databases were explored using a structured search and data extraction strategy. All included studies dealing with incident reporting described positive effects. Evidence regarding the effectiveness and efficiency of safety analysis is scarce. No studies on mitigation were included. The collected evidence on risk reduction concerns a variety of interventions to reduce medication errors, fall incidents, diagnostic errors, and adverse events in general. Most studies reported positive effects; however, interventions were often multifaceted, and it was difficult to disentangle their impact. This made it difficult to draw generic lessons from this body of research. More rigorous evaluations are needed, in particular, of continuous learning and safety analysis techniques.

Review: Disparities in Long-Term Care: Building Equity Into Market-Based Reforms

Konetzka, R. T., Werner, R. M. — Tue, 08 Sep 2009 15:09:30 PDT

A growing body of evidence documents pervasive racial, ethnic, and class disparities in long-term care in the United States. At the same time, major quality improvement initiatives are being implemented that rely on market-based incentives, many of which may have the unintended consequence of exacerbating disparities. We review existing evidence on disparities in the use and quality of long-term care services, analyze current market-based policy initiatives in terms of their potential to ameliorate or exacerbate these disparities, and suggest policies and policy modifications that may help decrease disparities. We find that racial disparities in the use of formal long-term care have decreased over time. Disparities in quality of care are more consistently documented and appear to be related to racial and socioeconomic segregation of long-term care facilities as opposed to within-provider discrimination. Market-based incentives policies should explicitly incorporate the goal of mitigating the potential unintended consequence of increased disparities.

Stigma and Help Seeking for Mental Health Among College Students

Eisenberg, D., Downs, M. F., Golberstein, E., Zivin, K. — Tue, 08 Sep 2009 15:09:30 PDT

Mental illness stigma has been identified by national policy makers as an important barrier to help seeking for mental health. Using a random sample of 5,555 students from a diverse set of 13 universities, we conducted one of the first empirical studies of the association of help-seeking behavior with both perceived public stigma and people’s own stigmatizing attitudes (personal stigma). There were three main findings: (a) Perceived public stigma was considerably higher than personal stigma; (b) personal stigma was higher among students with any of the following characteristics: male, younger, Asian, international, more religious, or from a poor family; and (c) personal stigma was significantly and negatively associated with measures of help seeking (perceived need and use of psychotropic medication, therapy, and nonclinical sources of support), whereas perceived stigma was not significantly associated with help seeking. These findings can help inform efforts to reduce the role of stigma as a barrier to help seeking.

Influence of NCI Cancer Center Attendance on Mortality in Lung, Breast, Colorectal, and Prostate Cancer Patients

Onega, T., Duell, E. J., Shi, X., Demidenko, E., Gottlieb, D., Goodman, D. C. — Tue, 08 Sep 2009 15:09:30 PDT

Some evidence links cancer outcomes to place of service, but the influence of NCI (National Cancer Institute) cancer centers on outcomes has not been established. We compared mortality for NCI cancer center attendees versus nonattendees. This retrospective cohort study included individuals with incident cancers of the lung, breast, colon/rectum, or prostate from 1998 to 2002 (N = 211,084) from SEER (Surveillance, Epidemiology, and End Results)—Medicare linked data, with claims through 2003. We examined the relation of NCI cancer center attendance with 1- and 3-year all-cause and cancer-specific mortality using multilevel logistic regression models. NCI cancer center attendance was associated with a significant reduction in the odds of 1- and 3-year all-cause and cancer-specific mortality. The mortality risk reduction associated with NCI cancer center attendance was most apparent in late-stage cancers and was evident across all levels of comorbidities. Attendance at NCI cancer centers is associated with a significant survival benefit for the four major cancers among Medicare beneficiaries.

Understanding Observed and Unobserved Health Care Access and Utilization Disparities Among U.S. Latino Adults

Vargas Bustamante, A., Fang, H., Rizzo, J. A., Ortega, A. N. — Tue, 08 Sep 2009 15:09:30 PDT

This study hypothesizes that differences in health care access and utilization exist across Latino adults (>18 years), with U.S. Latino adults of Mexican ancestry demonstrating the worst patterns of access and utilization. The analyses use the National Health Interview Survey (NHIS) data from 1999 to 2007 (N = 33,908). The authors first estimate the disparities in health care access and utilization among different categories of Latinos. They also implement Blinder—Oaxaca techniques to decompose disparities into observed and unobserved components, comparing Latinos of Mexican ancestry with non-Mexican Latinos. Latinos of Mexican ancestry consistently demonstrate lower health care access and utilization patterns than non-Mexican Latinos. Health insurance and region of residence were the most important factors that explained observable differences. In contrast, language and citizenship status were relatively unimportant. Although a significant share of these disparities may be explained by observed characteristics, disparities because of unobserved heterogeneity among the different Latino cohorts are also considerable.

Segregation and Disparities in Health Services Use

Gaskin, D. J., Price, A., Brandon, D. T., LaVeist, T. A. — Tue, 08 Sep 2009 15:09:30 PDT

We compared race disparities in health services use in a national sample of adults from the 2002 Medical Expenditure Panel Survey and data from the Exploring Health Disparities in Integrated Communities Project, a 2003 survey of adult residents from a low-income integrated urban community in Maryland. In the Medical Expenditure Panel Survey data, African Americans were less likely to have a health care visit compared with Whites. However, in the Exploring Health Disparities in Integrated Communities Project, the integrated community, African Americans were more likely to have a health care visit than Whites. The race disparities in the incidence rate of health care use among persons who had at least one visit were similar in both samples. Our findings suggest that disparities in health care utilization may differ across communities and that residential segregation may be a confounding factor.

Understanding the Safety Net: Inpatient Quality of Care Varies Based on How One Defines Safety-Net Hospitals

McHugh, M., Kang, R., Hasnain-Wynia, R. — Tue, 08 Sep 2009 15:09:30 PDT

A challenge to investigating quality of care at safety-net hospitals is the absence of a standard method for identifying these hospitals. The authors identified three different, commonly used approaches for classifying hospitals as safety-net providers. Analyzing national data on hospital demographics and quality of care, they found little overlap among these three sets of hospitals. Under two definitions, safety-net providers clearly underperformed on quality compared with non-safety-net providers; under a third definition, results were mixed. How one defines safety-net providers can affect health services research outcomes and policy recommendations.

Review: Immigrants and Health Care Access, Quality, and Cost

Pitkin Derose, K., Bahney, B. W., Lurie, N., Escarce, J. J. — Wed, 08 Jul 2009 16:36:49 PDT

Inadequate access and poor quality care for immigrants could have serious consequences for their health and that of the overall U.S. population. The authors conducted a systematic search for post-1996, population-based studies of immigrants and health care. Of the 1,559 articles identified, 67 met study criteria of which 77% examined access, 27% quality, and 6% cost. Noncitizens and their children were less likely to have health insurance and a regular source of care and had lower use than the U.S. born. The foreign born or non-English speakers were less satisfied and reported lower ratings and more discrimination. Immigrants incurred lower costs than the U.S. born, except emergency department expenditures for immigrant children. Policy solutions are needed to improve health care for immigrants and their children. Research is needed to elucidate immigrants' nonfinancial barriers, receipt of specific processes of care, cost of care, and health care experiences in nontraditional U.S. destinations.

Racial Differences in the Impact of Comorbidities on Survival Among Elderly Men With Prostate Cancer

Wed, 08 Jul 2009 16:36:49 PDT

This study investigates differences in the effects of comorbidities on survival in Medicare beneficiaries with prostate cancer. Medicare data were used to assemble a cohort of 65- to 76-year-old Black (n = 6,402) and White (n = 47,458) men with incident localized prostate cancer in 1999 who survived ≥1 year postdiagnosis. Comorbidities were more prevalent among Blacks than among Whites. For both races, greater comorbidity was associated with decreasing survival rates; however, the effect among Blacks was smaller than in Whites. After adjusting for age, socioeconomic status, and community characteristics, the association between increasing comorbidities and survival remained weaker for Blacks than for Whites, and racial disparity in survival decreased with increasing number of comorbidities. Differential effects of comorbidities on survival were also evident when examining different classes of comorbid conditions. Adjusting for treatment had little impact on these results, despite variation in the racial difference in receipt of prostatectomy with differing comorbidity levels.

Cultural Competency, Race, and Skin Tone Bias Among Pharmacy, Nursing, and Medical Students: Implications for Addressing Health Disparities

White-Means, S., Zhiyong Dong, , Hufstader, M., Brown, L. T. — Wed, 08 Jul 2009 16:36:49 PDT

The Institute of Medicine report, Unequal Treatment, asserts that conscious and unconscious bias of providers may affect treatments delivered and contribute to health disparities. The primary study objective is to measure, compare, and contrast objective and subjective cognitive processes among pharmacy, nursing, and medical students to discern potential implications for health disparities. Data were collected using a cultural competency questionnaire and two implicit association tests (IATs). Race and skin tone IATs measure unconscious bias. Cultural competency scores were significantly higher for non-Hispanic Blacks and Hispanics in medicine and pharmacy compared with non-Hispanic Whites. Multiracial nursing students also had significantly higher cultural competency scores than non-Hispanic Whites. The IAT results indicate that these health care preprofessionals exhibit implicit race and skin tone biases: preferences for Whites versus Blacks and light skin versus dark skin. Cultural competency curricula and disparities research will be advanced by understanding the factors contributing to cultural competence and bias.

Medical and Dental Care Utilization and Expenditures Under Medicaid and Private Health Insurance

Ku, L. — Wed, 08 Jul 2009 16:36:49 PDT

Data from the 2005 Medical Expenditure Panel Survey were used to conduct a disaggregated comparison of utilization and expenditures under Medicaid and private health insurance for low-income adults and children. After adjustment for health status and other factors, Medicaid adults and children had greater use of prescription drugs than the privately insured, but there were no significant differences in prescription expenditures. Adults on Medicaid had lower utilization of office-based medical and dental care and much lower expenditures than the privately insured. Contrary to stereotypes, there were no significant differences between Medicaid adults and children and the privately insured in emergency, outpatient, or inpatient hospital use, and the former had significantly lower expenditures.

Importing Medicine: A Look at Citizenship and Immigration Status for Graduating Residents in New York State From 1998 to 2007

Richards, M. R., Chou, C.-F., Lo Sasso, A. T. — Wed, 08 Jul 2009 16:36:49 PDT

International medical graduates (IMGs) make up roughly one quarter of the U.S. physician supply and residency training positions. Commentary related to IMGs tends to project a continuing rise in supply over time. This study wanted to challenge these perceptions by disaggregating IMGs by immigration and citizenship status to carefully examine their numerical levels and choices in training specialty and location during a 10-year period. The results demonstrate a shrinking IMG population overall for the state of New York, with noncitizen IMGs shrinking the most markedly. This may bear heavily on New York's physician supply and distribution, particularly for underserved locales. The authors find evidence consistent with some degree of substitution in favor of native-born and naturalized IMGs versus noncitizen IMGs.